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Official · by mongodb-js

MongoDB MCP server

The MongoDB MCP server lets an AI assistant run queries, aggregations, and document counts against MongoDB collections.

  • Runs locally
  • Apache-2.0 licence
  • ★ 1,144 on GitHub
  • Verified against its source 19 Oct 2026
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What the MongoDB MCP server does

The server connects MongoDB to agentic AI tools and assistants, letting them run aggregations and find queries on a collection, count documents in a collection, and list the databases for a connection. It also includes a tool to list MongoDB Atlas clusters and a tool to search the MongoDB Assistant knowledge base. It can be run locally by launching the mongodb-mcp-server package with npx, and a separate hosted Atlas-Managed MCP server is offered as an authenticated deployment.

Tools it gives your assistant

6 tools or toolsets, as its documentation lists them.

  • aggregate Runs an aggregation against a collection
  • find Runs a find query against a collection
  • count Counts documents in a collection, with optional filter
  • list-databases Lists databases for a connection
  • atlas-list-clusters Lists MongoDB Atlas clusters
  • search-knowledge Searches the MongoDB Assistant knowledge base

How to install it

Run it locally

With Node.js (npx)

npx -y mongodb-mcp-server

What you need

In the mongodb-js documentation's own words:

  • “At least v22.13.0. Check with node -v”
  • “NOTE: atlas tools are only available when you set credentials on configuration (#configuration) section”

Commands and settings change between versions. Check the official instructions before you install.