mongodb-mcp-server

Paste it into your assistant. It asks for the manifest, the server wiring and the skills, and for an honest account of what this record does not say. Read that second file first.

Draft an Agent Plugin (agent-plugins.org, specification 1.1.0) that wraps the
MCP server described below, so that somebody could install one thing and have
an assistant that knows when and how to use it.

An Agent Plugin is one installable unit: a `plugin.json` manifest, an
`mcp.json` that wires up the servers it needs, and a `skills/` directory
where each skill is a folder holding a `SKILL.md`. Hand back every file in
full, each under its own path, ready to save.

1. Write `plugin.json` with `$schema` exactly `https://agent-plugins.org/schemas/1.1.0/plugin.schema.json`. The name is
   1 to 64 characters of a-z, 0-9, `-` and `.`, alphanumeric at both ends, with
   no `--` and no `..` in it.

2. Write `mcp.json` wiring THIS server exactly as its record declares it. A
   remote keeps the URL and the transport type as written. A package keeps the
   registry, the identifier and the version as written. Do not invent a command,
   a port, a flag or an argument that is not in the record.

3. Every secret stays an input. No key, token, password or connection string
   belongs in either file. Declare what has to be supplied, name it, and say what
   it is for.

4. Do not invent tools. The record lists the tools it lists, and if it lists
   none then the honest plugin says the tool list was not published rather than
   guessing one from the description.

5. Skills are jobs, not tools. Write one skill per thing somebody would actually
   ask for, and inside each one say when to reach for this server, what a good
   result looks like, and what to do when it comes back empty. A skill per tool
   is a manual page with a different filename.

6. Say where it stops. Name what this plugin will not do — what it has no tool
   for, what needs a person, and what it must not be pointed at. A plugin with no
   stated edge reads as one with no edge.

7. Keep the author's own words for the description. If you would rather say it
   differently, say yours somewhere else and leave theirs where it is.

8. Record which version of the server you wrapped, and where the record came
   from, at the top of `plugin.json`'s description or in the readme. A plugin
   nobody can trace back to a version is one nobody can update.

Produce a second file alongside them, `LIMITS.md`, and treat it as the more
important of the two. The plugin is for whoever installs it. This is for
whoever has to decide whether installing it is a good idea, and that is
usually a different person who will never read the manifest.

It has three parts.

**What this is built from.** One paragraph: whose server it is, what the
record says it does, which version, and the fact that the record is all you
had. Say plainly that nobody ran it.

**What the record does not say.** One entry per gap. Whether the tool list was
published. What the server does with what it reads. What it costs. Whether it
writes anything anywhere. What credentials it will ask for and what those
credentials can reach. An unanswered question stays an unanswered question:
do not fill one in from the description or from what similar servers usually do.

**What a person has to check before trusting it.** The specific things
somebody should verify for themselves, in the order that would stop them
soonest if the answer is bad.

Write it in plain English, and do not soften it. A plugin drafted from a
directory record is a starting point to argue with, not something to install
into anything that matters.

The server record follows, exactly as the public index holds it. It is
everything I have: nobody has run this server, called a tool on it, or checked
that the address answers.

```json
{
  "server": {
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "name": "io.github.mongodb-js/mongodb-mcp-server",
    "description": "MongoDB Model Context Protocol Server",
    "repository": {
      "url": "https://github.com/mongodb-js/mongodb-mcp-server",
      "source": "github"
    },
    "version": "2.1.0",
    "packages": [
      {
        "registryType": "npm",
        "identifier": "mongodb-mcp-server",
        "version": "2.1.0",
        "transport": {
          "type": "stdio"
        },
        "packageArguments": [
          {
            "description": "When set to true, allows configuration values to be overridden via request headers and query parameters.",
            "format": "boolean",
            "type": "named",
            "name": "--allowRequestOverrides"
          },
          {
            "description": "Atlas API client ID for authentication. Required for running Atlas tools.",
            "type": "named",
            "name": "--apiClientId"
          },
          {
            "description": "Atlas API client secret for authentication. Required for running Atlas tools.",
            "type": "named",
            "name": "--apiClientSecret"
          },
          {
            "description": "Base URL for the MongoDB Assistant API.",
            "type": "named",
            "name": "--assistantBaseUrl"
          },
          {
            "description": "Time in milliseconds that temporary database users created when connecting to MongoDB Atlas clusters will remain active before being automatically deleted.",
            "format": "number",
            "type": "named",
            "name": "--atlasTemporaryDatabaseUserLifetimeMs"
          },
          {
            "description": "Comma separated values of tool names that require user confirmation before execution. Requires the client to support elicitation.",
            "type": "named",
            "name": "--confirmationRequiredTools"
          },
          {
            "description": "Visibility scope for MongoDB connections created at runtime. With 'session' (the default), each MCP session only sees the connections it created (plus the shared 'preconfigured' one) and they are closed when the session ends — recommended when the HTTP transport is exposed to multiple clients without authentication. With 'global', connections are shared across all sessions and survive session rotation.",
            "type": "named",
            "name": "--connectionScope"
          },
          {
            "description": "MongoDB connection string for direct database connections. Optional, if not set, you'll need to call the connect tool before interacting with MongoDB data.",
            "type": "named",
            "name": "--connectionString"
          },
          {
            "description": "When set to true, disallows the use of server-side JavaScript operators (such as $where, $function, and $accumulator) in query filters and aggregation pipelines.",
            "format": "boolean",
            "type": "named",
            "name": "--disableServerSideJs"
          },
          {
            "description": "Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.",
            "type": "named",
            "name": "--disabledTools"
          },
          {
            "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
            "format": "boolean",
            "type": "named",
            "name": "--dryRun"
          },
          {
            "description": "Time in milliseconds the user has to respond to an elicitation request (such as a tool confirmation prompt) before it fails.",
            "format": "number",
            "type": "named",
            "name": "--elicitationTimeoutMs"
          },
          {
            "description": "Time in milliseconds between export cleanup cycles that remove expired export files.",
            "format": "number",
            "type": "named",
            "name": "--exportCleanupIntervalMs"
          },
          {
            "description": "Time in milliseconds after which an export is considered expired and eligible for cleanup.",
            "format": "number",
            "type": "named",
            "name": "--exportTimeoutMs"
          },
          {
            "description": "Folder to store exported data files.",
            "type": "named",
            "name": "--exportsPath"
          },
          {
            "description": "When true, the HTTP transport allows requests with a session ID supplied externally through the 'mcp-session-id' header. When an external ID is supplied, the initialization request is optional.",
            "format": "boolean",
            "type": "named",
            "name": "--externallyManagedSessions"
          },
          {
            "description": "Deprecated. Use `monitoringServerHost` instead. Host address to bind the healthCheck HTTP server to (only used when transport is 'http'). If provided, `healthCheckPort` must also be set.",
            "type": "named",
            "name": "--healthCheckHost"
          },
          {
            "description": "Deprecated. Use `monitoringServerPort` instead. Port number for the healthCheck HTTP server (only used when transport is 'http'). If provided, `healthCheckHost` must also be set.",
            "format": "number",
            "type": "named",
            "name": "--healthCheckPort"
          },
          {
            "description": "Maximum size of the HTTP request body in bytes (only used when transport is 'http'). This value is passed as the optional limit parameter to the Express.js json() middleware.",
            "format": "number",
            "type": "named",
            "name": "--httpBodyLimit"
          },
          {
            "description": "Header that the HTTP server will validate when making requests (only used when transport is 'http').",
            "type": "named",
            "name": "--httpHeaders"
          },
          {
            "description": "Host address to bind the HTTP server to (only used when transport is 'http').",
            "type": "named",
            "name": "--httpHost"
          },
          {
            "description": "Port number for the HTTP server (only used when transport is 'http'). Use 0 for a random port.",
            "format": "number",
            "type": "named",
            "name": "--httpPort"
          },
          {
            "description": "The HTTP response type for tool responses: 'sse' for Server-Sent Events, 'json' for standard JSON responses.",
            "type": "named",
            "name": "--httpResponseType"
          },
          {
            "description": "Idle timeout for a client to disconnect (only applies to http transport).",
            "format": "number",
            "type": "named",
            "name": "--idleTimeoutMs"
          },
          {
            "description": "When set to true, enforces that query operations must use an index, rejecting queries that perform a collection scan.",
            "format": "boolean",
            "type": "named",
            "name": "--indexCheck"
          },
          {
            "description": "Folder to store logs.",
            "type": "named",
            "name": "--logPath"
          },
          {
            "description": "Comma separated values of logger types.",
            "type": "named",
            "name": "--loggers"
          },
          {
            "description": "Maximum number of MongoDB connections a single scope (an MCP session by default, see connectionScope) can hold open. When exceeded, the scope's least-recently-used connection is closed and its connectionId revoked. The preconfigured connection does not count towards the limit.",
            "format": "number",
            "type": "named",
            "name": "--maxActiveConnections"
          },
          {
            "description": "The maximum size in bytes for results from a find or aggregate tool call. This serves as an upper bound for the responseBytesLimit parameter in those tools.",
            "format": "number",
            "type": "named",
            "name": "--maxBytesPerQuery"
          },
          {
            "description": "The maximum number of documents that can be returned by a find or aggregate tool call. For the find tool, the effective limit will be the smaller of this value and the tool's limit parameter.",
            "format": "number",
            "type": "named",
            "name": "--maxDocumentsPerQuery"
          },
          {
            "description": "Maximum number of concurrent sessions the HTTP transport will hold in memory (only used when transport is 'http'). Each session holds a full server instance, transport, and timers, so choose a value based on your deployment's available memory; the default is a conservative safety net rather than a recommended production value.",
            "format": "number",
            "type": "named",
            "name": "--maxSessions"
          },
          {
            "description": "The maximum time in milliseconds that operations are allowed to run on the MongoDB server. When set, this value is passed as the maxTimeMS option to read operations such as find, aggregate, and count.",
            "format": "number",
            "type": "named",
            "name": "--maxTimeMS"
          },
          {
            "description": "Minimum severity level for log messages forwarded to the MCP client.",
            "type": "named",
            "name": "--mcpClientLogLevel"
          },
          {
            "description": "Features to expose on the monitoring server (only used when transport is 'http' and monitoringServerHost/monitoringServerPort are set).",
            "type": "named",
            "name": "--monitoringServerFeatures"
          },
          {
            "description": "Host address to bind the monitoring HTTP server to (only used when transport is 'http'). If provided, `monitoringServerPort` must also be set.",
            "type": "named",
            "name": "--monitoringServerHost"
          },
          {
            "description": "Port number for the monitoring HTTP server (only used when transport is 'http'). If provided, `monitoringServerHost` must also be set.",
            "format": "number",
            "type": "named",
            "name": "--monitoringServerPort"
          },
          {
            "description": "Notification timeout for a client to be aware of disconnect (only applies to http transport).",
            "format": "number",
            "type": "named",
            "name": "--notificationTimeoutMs"
          },
          {
            "description": "Comma separated values of preview features that are enabled.",
            "type": "named",
            "name": "--previewFeatures"
          },
          {
            "description": "When set to true, only allows read, connect, and metadata operation types, disabling create/update/delete operations.",
            "format": "boolean",
            "type": "named",
            "name": "--readOnly"
          },
          {
            "description": "When set to disabled, disables telemetry collection.",
            "type": "named",
            "name": "--telemetry"
          },
          {
            "description": "Either 'stdio' or 'http'.",
            "type": "named",
            "name": "--transport"
          },
          {
            "description": "API key for Voyage AI embeddings service (required for creating Atlas Local deployments with auto-embed vector search capabilities).",
            "type": "named",
            "name": "--voyageApiKey"
          }
        ],
        "environmentVariables": [
          {
            "description": "When set to true, allows configuration values to be overridden via request headers and query parameters.",
            "format": "boolean",
            "name": "MDB_MCP_ALLOW_REQUEST_OVERRIDES"
          },
          {
            "description": "Atlas API client ID for authentication. Required for running Atlas tools.",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_API_CLIENT_ID"
          },
          {
            "description": "Atlas API client secret for authentication. Required for running Atlas tools.",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_API_CLIENT_SECRET"
          },
          {
            "description": "Base URL for the MongoDB Assistant API.",
            "format": "string",
            "name": "MDB_MCP_ASSISTANT_BASE_URL"
          },
          {
            "description": "Time in milliseconds that temporary database users created when connecting to MongoDB Atlas clusters will remain active before being automatically deleted.",
            "format": "number",
            "name": "MDB_MCP_ATLAS_TEMPORARY_DATABASE_USER_LIFETIME_MS"
          },
          {
            "description": "Comma separated values of tool names that require user confirmation before execution. Requires the client to support elicitation.",
            "format": "string",
            "name": "MDB_MCP_CONFIRMATION_REQUIRED_TOOLS"
          },
          {
            "description": "Visibility scope for MongoDB connections created at runtime. With 'session' (the default), each MCP session only sees the connections it created (plus the shared 'preconfigured' one) and they are closed when the session ends — recommended when the HTTP transport is exposed to multiple clients without authentication. With 'global', connections are shared across all sessions and survive session rotation.",
            "format": "string",
            "name": "MDB_MCP_CONNECTION_SCOPE"
          },
          {
            "description": "MongoDB connection string for direct database connections. Optional, if not set, you'll need to call the connect tool before interacting with MongoDB data.",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_CONNECTION_STRING"
          },
          {
            "description": "When set to true, disallows the use of server-side JavaScript operators (such as $where, $function, and $accumulator) in query filters and aggregation pipelines.",
            "format": "boolean",
            "name": "MDB_MCP_DISABLE_SERVER_SIDE_JS"
          },
          {
            "description": "Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.",
            "format": "string",
            "name": "MDB_MCP_DISABLED_TOOLS"
          },
          {
            "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
            "format": "boolean",
            "name": "MDB_MCP_DRY_RUN"
          },
          {
            "description": "Time in milliseconds the user has to respond to an elicitation request (such as a tool confirmation prompt) before it fails.",
            "format": "number",
            "name": "MDB_MCP_ELICITATION_TIMEOUT_MS"
          },
          {
            "description": "Time in milliseconds between export cleanup cycles that remove expired export files.",
            "format": "number",
            "name": "MDB_MCP_EXPORT_CLEANUP_INTERVAL_MS"
          },
          {
            "description": "Time in milliseconds after which an export is considered expired and eligible for cleanup.",
            "format": "number",
            "name": "MDB_MCP_EXPORT_TIMEOUT_MS"
          },
          {
            "description": "Folder to store exported data files.",
            "format": "string",
            "name": "MDB_MCP_EXPORTS_PATH"
          },
          {
            "description": "When true, the HTTP transport allows requests with a session ID supplied externally through the 'mcp-session-id' header. When an external ID is supplied, the initialization request is optional.",
            "format": "boolean",
            "name": "MDB_MCP_EXTERNALLY_MANAGED_SESSIONS"
          },
          {
            "description": "Deprecated. Use `monitoringServerHost` instead. Host address to bind the healthCheck HTTP server to (only used when transport is 'http'). If provided, `healthCheckPort` must also be set.",
            "format": "string",
            "name": "MDB_MCP_HEALTH_CHECK_HOST"
          },
          {
            "description": "Deprecated. Use `monitoringServerPort` instead. Port number for the healthCheck HTTP server (only used when transport is 'http'). If provided, `healthCheckHost` must also be set.",
            "format": "number",
            "name": "MDB_MCP_HEALTH_CHECK_PORT"
          },
          {
            "description": "Maximum size of the HTTP request body in bytes (only used when transport is 'http'). This value is passed as the optional limit parameter to the Express.js json() middleware.",
            "format": "number",
            "name": "MDB_MCP_HTTP_BODY_LIMIT"
          },
          {
            "description": "Header that the HTTP server will validate when making requests (only used when transport is 'http').",
            "format": "string",
            "name": "MDB_MCP_HTTP_HEADERS"
          },
          {
            "description": "Host address to bind the HTTP server to (only used when transport is 'http').",
            "format": "string",
            "name": "MDB_MCP_HTTP_HOST"
          },
          {
            "description": "Port number for the HTTP server (only used when transport is 'http'). Use 0 for a random port.",
            "format": "number",
            "name": "MDB_MCP_HTTP_PORT"
          },
          {
            "description": "The HTTP response type for tool responses: 'sse' for Server-Sent Events, 'json' for standard JSON responses.",
            "format": "string",
            "name": "MDB_MCP_HTTP_RESPONSE_TYPE"
          },
          {
            "description": "Idle timeout for a client to disconnect (only applies to http transport).",
            "format": "number",
            "name": "MDB_MCP_IDLE_TIMEOUT_MS"
          },
          {
            "description": "When set to true, enforces that query operations must use an index, rejecting queries that perform a collection scan.",
            "format": "boolean",
            "name": "MDB_MCP_INDEX_CHECK"
          },
          {
            "description": "Folder to store logs.",
            "format": "string",
            "name": "MDB_MCP_LOG_PATH"
          },
          {
            "description": "Comma separated values of logger types.",
            "format": "string",
            "name": "MDB_MCP_LOGGERS"
          },
          {
            "description": "Maximum number of MongoDB connections a single scope (an MCP session by default, see connectionScope) can hold open. When exceeded, the scope's least-recently-used connection is closed and its connectionId revoked. The preconfigured connection does not count towards the limit.",
            "format": "number",
            "name": "MDB_MCP_MAX_ACTIVE_CONNECTIONS"
          },
          {
            "description": "The maximum size in bytes for results from a find or aggregate tool call. This serves as an upper bound for the responseBytesLimit parameter in those tools.",
            "format": "number",
            "name": "MDB_MCP_MAX_BYTES_PER_QUERY"
          },
          {
            "description": "The maximum number of documents that can be returned by a find or aggregate tool call. For the find tool, the effective limit will be the smaller of this value and the tool's limit parameter.",
            "format": "number",
            "name": "MDB_MCP_MAX_DOCUMENTS_PER_QUERY"
          },
          {
            "description": "Maximum number of concurrent sessions the HTTP transport will hold in memory (only used when transport is 'http'). Each session holds a full server instance, transport, and timers, so choose a value based on your deployment's available memory; the default is a conservative safety net rather than a recommended production value.",
            "format": "number",
            "name": "MDB_MCP_MAX_SESSIONS"
          },
          {
            "description": "The maximum time in milliseconds that operations are allowed to run on the MongoDB server. When set, this value is passed as the maxTimeMS option to read operations such as find, aggregate, and count.",
            "format": "number",
            "name": "MDB_MCP_MAX_TIME_M_S"
          },
          {
            "description": "Minimum severity level for log messages forwarded to the MCP client.",
            "format": "string",
            "name": "MDB_MCP_MCP_CLIENT_LOG_LEVEL"
          },
          {
            "description": "Features to expose on the monitoring server (only used when transport is 'http' and monitoringServerHost/monitoringServerPort are set).",
            "format": "string",
            "name": "MDB_MCP_MONITORING_SERVER_FEATURES"
          },
          {
            "description": "Host address to bind the monitoring HTTP server to (only used when transport is 'http'). If provided, `monitoringServerPort` must also be set.",
            "format": "string",
            "name": "MDB_MCP_MONITORING_SERVER_HOST"
          },
          {
            "description": "Port number for the monitoring HTTP server (only used when transport is 'http'). If provided, `monitoringServerHost` must also be set.",
            "format": "number",
            "name": "MDB_MCP_MONITORING_SERVER_PORT"
          },
          {
            "description": "Notification timeout for a client to be aware of disconnect (only applies to http transport).",
            "format": "number",
            "name": "MDB_MCP_NOTIFICATION_TIMEOUT_MS"
          },
          {
            "description": "Comma separated values of preview features that are enabled.",
            "format": "string",
            "name": "MDB_MCP_PREVIEW_FEATURES"
          },
          {
            "description": "When set to true, only allows read, connect, and metadata operation types, disabling create/update/delete operations.",
            "format": "boolean",
            "name": "MDB_MCP_READ_ONLY"
          },
          {
            "description": "When set to disabled, disables telemetry collection.",
            "format": "string",
            "name": "MDB_MCP_TELEMETRY"
          },
          {
            "description": "Either 'stdio' or 'http'.",
            "format": "string",
            "name": "MDB_MCP_TRANSPORT"
          },
          {
            "description": "API key for Voyage AI embeddings service (required for creating Atlas Local deployments with auto-embed vector search capabilities).",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_VOYAGE_API_KEY"
          }
        ]
      },
      {
        "registryType": "oci",
        "identifier": "docker.io/mongodb/mongodb-mcp-server:2.1.0",
        "transport": {
          "type": "stdio"
        },
        "packageArguments": [
          {
            "description": "When set to true, allows configuration values to be overridden via request headers and query parameters.",
            "format": "boolean",
            "type": "named",
            "name": "--allowRequestOverrides"
          },
          {
            "description": "Atlas API client ID for authentication. Required for running Atlas tools.",
            "type": "named",
            "name": "--apiClientId"
          },
          {
            "description": "Atlas API client secret for authentication. Required for running Atlas tools.",
            "type": "named",
            "name": "--apiClientSecret"
          },
          {
            "description": "Base URL for the MongoDB Assistant API.",
            "type": "named",
            "name": "--assistantBaseUrl"
          },
          {
            "description": "Time in milliseconds that temporary database users created when connecting to MongoDB Atlas clusters will remain active before being automatically deleted.",
            "format": "number",
            "type": "named",
            "name": "--atlasTemporaryDatabaseUserLifetimeMs"
          },
          {
            "description": "Comma separated values of tool names that require user confirmation before execution. Requires the client to support elicitation.",
            "type": "named",
            "name": "--confirmationRequiredTools"
          },
          {
            "description": "Visibility scope for MongoDB connections created at runtime. With 'session' (the default), each MCP session only sees the connections it created (plus the shared 'preconfigured' one) and they are closed when the session ends — recommended when the HTTP transport is exposed to multiple clients without authentication. With 'global', connections are shared across all sessions and survive session rotation.",
            "type": "named",
            "name": "--connectionScope"
          },
          {
            "description": "MongoDB connection string for direct database connections. Optional, if not set, you'll need to call the connect tool before interacting with MongoDB data.",
            "type": "named",
            "name": "--connectionString"
          },
          {
            "description": "When set to true, disallows the use of server-side JavaScript operators (such as $where, $function, and $accumulator) in query filters and aggregation pipelines.",
            "format": "boolean",
            "type": "named",
            "name": "--disableServerSideJs"
          },
          {
            "description": "Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.",
            "type": "named",
            "name": "--disabledTools"
          },
          {
            "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
            "format": "boolean",
            "type": "named",
            "name": "--dryRun"
          },
          {
            "description": "Time in milliseconds the user has to respond to an elicitation request (such as a tool confirmation prompt) before it fails.",
            "format": "number",
            "type": "named",
            "name": "--elicitationTimeoutMs"
          },
          {
            "description": "Time in milliseconds between export cleanup cycles that remove expired export files.",
            "format": "number",
            "type": "named",
            "name": "--exportCleanupIntervalMs"
          },
          {
            "description": "Time in milliseconds after which an export is considered expired and eligible for cleanup.",
            "format": "number",
            "type": "named",
            "name": "--exportTimeoutMs"
          },
          {
            "description": "Folder to store exported data files.",
            "type": "named",
            "name": "--exportsPath"
          },
          {
            "description": "When true, the HTTP transport allows requests with a session ID supplied externally through the 'mcp-session-id' header. When an external ID is supplied, the initialization request is optional.",
            "format": "boolean",
            "type": "named",
            "name": "--externallyManagedSessions"
          },
          {
            "description": "Deprecated. Use `monitoringServerHost` instead. Host address to bind the healthCheck HTTP server to (only used when transport is 'http'). If provided, `healthCheckPort` must also be set.",
            "type": "named",
            "name": "--healthCheckHost"
          },
          {
            "description": "Deprecated. Use `monitoringServerPort` instead. Port number for the healthCheck HTTP server (only used when transport is 'http'). If provided, `healthCheckHost` must also be set.",
            "format": "number",
            "type": "named",
            "name": "--healthCheckPort"
          },
          {
            "description": "Maximum size of the HTTP request body in bytes (only used when transport is 'http'). This value is passed as the optional limit parameter to the Express.js json() middleware.",
            "format": "number",
            "type": "named",
            "name": "--httpBodyLimit"
          },
          {
            "description": "Header that the HTTP server will validate when making requests (only used when transport is 'http').",
            "type": "named",
            "name": "--httpHeaders"
          },
          {
            "description": "Host address to bind the HTTP server to (only used when transport is 'http').",
            "type": "named",
            "name": "--httpHost"
          },
          {
            "description": "Port number for the HTTP server (only used when transport is 'http'). Use 0 for a random port.",
            "format": "number",
            "type": "named",
            "name": "--httpPort"
          },
          {
            "description": "The HTTP response type for tool responses: 'sse' for Server-Sent Events, 'json' for standard JSON responses.",
            "type": "named",
            "name": "--httpResponseType"
          },
          {
            "description": "Idle timeout for a client to disconnect (only applies to http transport).",
            "format": "number",
            "type": "named",
            "name": "--idleTimeoutMs"
          },
          {
            "description": "When set to true, enforces that query operations must use an index, rejecting queries that perform a collection scan.",
            "format": "boolean",
            "type": "named",
            "name": "--indexCheck"
          },
          {
            "description": "Folder to store logs.",
            "type": "named",
            "name": "--logPath"
          },
          {
            "description": "Comma separated values of logger types.",
            "type": "named",
            "name": "--loggers"
          },
          {
            "description": "Maximum number of MongoDB connections a single scope (an MCP session by default, see connectionScope) can hold open. When exceeded, the scope's least-recently-used connection is closed and its connectionId revoked. The preconfigured connection does not count towards the limit.",
            "format": "number",
            "type": "named",
            "name": "--maxActiveConnections"
          },
          {
            "description": "The maximum size in bytes for results from a find or aggregate tool call. This serves as an upper bound for the responseBytesLimit parameter in those tools.",
            "format": "number",
            "type": "named",
            "name": "--maxBytesPerQuery"
          },
          {
            "description": "The maximum number of documents that can be returned by a find or aggregate tool call. For the find tool, the effective limit will be the smaller of this value and the tool's limit parameter.",
            "format": "number",
            "type": "named",
            "name": "--maxDocumentsPerQuery"
          },
          {
            "description": "Maximum number of concurrent sessions the HTTP transport will hold in memory (only used when transport is 'http'). Each session holds a full server instance, transport, and timers, so choose a value based on your deployment's available memory; the default is a conservative safety net rather than a recommended production value.",
            "format": "number",
            "type": "named",
            "name": "--maxSessions"
          },
          {
            "description": "The maximum time in milliseconds that operations are allowed to run on the MongoDB server. When set, this value is passed as the maxTimeMS option to read operations such as find, aggregate, and count.",
            "format": "number",
            "type": "named",
            "name": "--maxTimeMS"
          },
          {
            "description": "Minimum severity level for log messages forwarded to the MCP client.",
            "type": "named",
            "name": "--mcpClientLogLevel"
          },
          {
            "description": "Features to expose on the monitoring server (only used when transport is 'http' and monitoringServerHost/monitoringServerPort are set).",
            "type": "named",
            "name": "--monitoringServerFeatures"
          },
          {
            "description": "Host address to bind the monitoring HTTP server to (only used when transport is 'http'). If provided, `monitoringServerPort` must also be set.",
            "type": "named",
            "name": "--monitoringServerHost"
          },
          {
            "description": "Port number for the monitoring HTTP server (only used when transport is 'http'). If provided, `monitoringServerHost` must also be set.",
            "format": "number",
            "type": "named",
            "name": "--monitoringServerPort"
          },
          {
            "description": "Notification timeout for a client to be aware of disconnect (only applies to http transport).",
            "format": "number",
            "type": "named",
            "name": "--notificationTimeoutMs"
          },
          {
            "description": "Comma separated values of preview features that are enabled.",
            "type": "named",
            "name": "--previewFeatures"
          },
          {
            "description": "When set to true, only allows read, connect, and metadata operation types, disabling create/update/delete operations.",
            "format": "boolean",
            "type": "named",
            "name": "--readOnly"
          },
          {
            "description": "When set to disabled, disables telemetry collection.",
            "type": "named",
            "name": "--telemetry"
          },
          {
            "description": "Either 'stdio' or 'http'.",
            "type": "named",
            "name": "--transport"
          },
          {
            "description": "API key for Voyage AI embeddings service (required for creating Atlas Local deployments with auto-embed vector search capabilities).",
            "type": "named",
            "name": "--voyageApiKey"
          }
        ],
        "environmentVariables": [
          {
            "description": "When set to true, allows configuration values to be overridden via request headers and query parameters.",
            "format": "boolean",
            "name": "MDB_MCP_ALLOW_REQUEST_OVERRIDES"
          },
          {
            "description": "Atlas API client ID for authentication. Required for running Atlas tools.",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_API_CLIENT_ID"
          },
          {
            "description": "Atlas API client secret for authentication. Required for running Atlas tools.",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_API_CLIENT_SECRET"
          },
          {
            "description": "Base URL for the MongoDB Assistant API.",
            "format": "string",
            "name": "MDB_MCP_ASSISTANT_BASE_URL"
          },
          {
            "description": "Time in milliseconds that temporary database users created when connecting to MongoDB Atlas clusters will remain active before being automatically deleted.",
            "format": "number",
            "name": "MDB_MCP_ATLAS_TEMPORARY_DATABASE_USER_LIFETIME_MS"
          },
          {
            "description": "Comma separated values of tool names that require user confirmation before execution. Requires the client to support elicitation.",
            "format": "string",
            "name": "MDB_MCP_CONFIRMATION_REQUIRED_TOOLS"
          },
          {
            "description": "Visibility scope for MongoDB connections created at runtime. With 'session' (the default), each MCP session only sees the connections it created (plus the shared 'preconfigured' one) and they are closed when the session ends — recommended when the HTTP transport is exposed to multiple clients without authentication. With 'global', connections are shared across all sessions and survive session rotation.",
            "format": "string",
            "name": "MDB_MCP_CONNECTION_SCOPE"
          },
          {
            "description": "MongoDB connection string for direct database connections. Optional, if not set, you'll need to call the connect tool before interacting with MongoDB data.",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_CONNECTION_STRING"
          },
          {
            "description": "When set to true, disallows the use of server-side JavaScript operators (such as $where, $function, and $accumulator) in query filters and aggregation pipelines.",
            "format": "boolean",
            "name": "MDB_MCP_DISABLE_SERVER_SIDE_JS"
          },
          {
            "description": "Comma separated values of tool names, operation types, and/or categories of tools that will be disabled.",
            "format": "string",
            "name": "MDB_MCP_DISABLED_TOOLS"
          },
          {
            "description": "When true, runs the server in dry mode: dumps configuration and enabled tools, then exits without starting the server.",
            "format": "boolean",
            "name": "MDB_MCP_DRY_RUN"
          },
          {
            "description": "Time in milliseconds the user has to respond to an elicitation request (such as a tool confirmation prompt) before it fails.",
            "format": "number",
            "name": "MDB_MCP_ELICITATION_TIMEOUT_MS"
          },
          {
            "description": "Time in milliseconds between export cleanup cycles that remove expired export files.",
            "format": "number",
            "name": "MDB_MCP_EXPORT_CLEANUP_INTERVAL_MS"
          },
          {
            "description": "Time in milliseconds after which an export is considered expired and eligible for cleanup.",
            "format": "number",
            "name": "MDB_MCP_EXPORT_TIMEOUT_MS"
          },
          {
            "description": "Folder to store exported data files.",
            "format": "string",
            "name": "MDB_MCP_EXPORTS_PATH"
          },
          {
            "description": "When true, the HTTP transport allows requests with a session ID supplied externally through the 'mcp-session-id' header. When an external ID is supplied, the initialization request is optional.",
            "format": "boolean",
            "name": "MDB_MCP_EXTERNALLY_MANAGED_SESSIONS"
          },
          {
            "description": "Deprecated. Use `monitoringServerHost` instead. Host address to bind the healthCheck HTTP server to (only used when transport is 'http'). If provided, `healthCheckPort` must also be set.",
            "format": "string",
            "name": "MDB_MCP_HEALTH_CHECK_HOST"
          },
          {
            "description": "Deprecated. Use `monitoringServerPort` instead. Port number for the healthCheck HTTP server (only used when transport is 'http'). If provided, `healthCheckHost` must also be set.",
            "format": "number",
            "name": "MDB_MCP_HEALTH_CHECK_PORT"
          },
          {
            "description": "Maximum size of the HTTP request body in bytes (only used when transport is 'http'). This value is passed as the optional limit parameter to the Express.js json() middleware.",
            "format": "number",
            "name": "MDB_MCP_HTTP_BODY_LIMIT"
          },
          {
            "description": "Header that the HTTP server will validate when making requests (only used when transport is 'http').",
            "format": "string",
            "name": "MDB_MCP_HTTP_HEADERS"
          },
          {
            "description": "Host address to bind the HTTP server to (only used when transport is 'http').",
            "format": "string",
            "name": "MDB_MCP_HTTP_HOST"
          },
          {
            "description": "Port number for the HTTP server (only used when transport is 'http'). Use 0 for a random port.",
            "format": "number",
            "name": "MDB_MCP_HTTP_PORT"
          },
          {
            "description": "The HTTP response type for tool responses: 'sse' for Server-Sent Events, 'json' for standard JSON responses.",
            "format": "string",
            "name": "MDB_MCP_HTTP_RESPONSE_TYPE"
          },
          {
            "description": "Idle timeout for a client to disconnect (only applies to http transport).",
            "format": "number",
            "name": "MDB_MCP_IDLE_TIMEOUT_MS"
          },
          {
            "description": "When set to true, enforces that query operations must use an index, rejecting queries that perform a collection scan.",
            "format": "boolean",
            "name": "MDB_MCP_INDEX_CHECK"
          },
          {
            "description": "Folder to store logs.",
            "format": "string",
            "name": "MDB_MCP_LOG_PATH"
          },
          {
            "description": "Comma separated values of logger types.",
            "format": "string",
            "name": "MDB_MCP_LOGGERS"
          },
          {
            "description": "Maximum number of MongoDB connections a single scope (an MCP session by default, see connectionScope) can hold open. When exceeded, the scope's least-recently-used connection is closed and its connectionId revoked. The preconfigured connection does not count towards the limit.",
            "format": "number",
            "name": "MDB_MCP_MAX_ACTIVE_CONNECTIONS"
          },
          {
            "description": "The maximum size in bytes for results from a find or aggregate tool call. This serves as an upper bound for the responseBytesLimit parameter in those tools.",
            "format": "number",
            "name": "MDB_MCP_MAX_BYTES_PER_QUERY"
          },
          {
            "description": "The maximum number of documents that can be returned by a find or aggregate tool call. For the find tool, the effective limit will be the smaller of this value and the tool's limit parameter.",
            "format": "number",
            "name": "MDB_MCP_MAX_DOCUMENTS_PER_QUERY"
          },
          {
            "description": "Maximum number of concurrent sessions the HTTP transport will hold in memory (only used when transport is 'http'). Each session holds a full server instance, transport, and timers, so choose a value based on your deployment's available memory; the default is a conservative safety net rather than a recommended production value.",
            "format": "number",
            "name": "MDB_MCP_MAX_SESSIONS"
          },
          {
            "description": "The maximum time in milliseconds that operations are allowed to run on the MongoDB server. When set, this value is passed as the maxTimeMS option to read operations such as find, aggregate, and count.",
            "format": "number",
            "name": "MDB_MCP_MAX_TIME_M_S"
          },
          {
            "description": "Minimum severity level for log messages forwarded to the MCP client.",
            "format": "string",
            "name": "MDB_MCP_MCP_CLIENT_LOG_LEVEL"
          },
          {
            "description": "Features to expose on the monitoring server (only used when transport is 'http' and monitoringServerHost/monitoringServerPort are set).",
            "format": "string",
            "name": "MDB_MCP_MONITORING_SERVER_FEATURES"
          },
          {
            "description": "Host address to bind the monitoring HTTP server to (only used when transport is 'http'). If provided, `monitoringServerPort` must also be set.",
            "format": "string",
            "name": "MDB_MCP_MONITORING_SERVER_HOST"
          },
          {
            "description": "Port number for the monitoring HTTP server (only used when transport is 'http'). If provided, `monitoringServerHost` must also be set.",
            "format": "number",
            "name": "MDB_MCP_MONITORING_SERVER_PORT"
          },
          {
            "description": "Notification timeout for a client to be aware of disconnect (only applies to http transport).",
            "format": "number",
            "name": "MDB_MCP_NOTIFICATION_TIMEOUT_MS"
          },
          {
            "description": "Comma separated values of preview features that are enabled.",
            "format": "string",
            "name": "MDB_MCP_PREVIEW_FEATURES"
          },
          {
            "description": "When set to true, only allows read, connect, and metadata operation types, disabling create/update/delete operations.",
            "format": "boolean",
            "name": "MDB_MCP_READ_ONLY"
          },
          {
            "description": "When set to disabled, disables telemetry collection.",
            "format": "string",
            "name": "MDB_MCP_TELEMETRY"
          },
          {
            "description": "Either 'stdio' or 'http'.",
            "format": "string",
            "name": "MDB_MCP_TRANSPORT"
          },
          {
            "description": "API key for Voyage AI embeddings service (required for creating Atlas Local deployments with auto-embed vector search capabilities).",
            "format": "string",
            "isSecret": true,
            "name": "MDB_MCP_VOYAGE_API_KEY"
          }
        ]
      }
    ]
  },
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "statusChangedAt": "2026-08-10T12:31:11.122426Z",
      "publishedAt": "2026-08-10T12:31:11.122426Z",
      "updatedAt": "2026-08-10T12:31:11.122426Z",
      "isLatest": true
    }
  }
}
```

The server is listed as "mongodb-mcp-server".