MongoDB · Codex

Add the MongoDB MCP server to Codex

Query and manage MongoDB databases and Atlas clusters.

Official serverLocalDatabases

1. Add the server

Run in your terminal

# ~/.codex/config.toml
[mcp_servers.mongodb]
command = "npx"
args = ["-y", "mongodb-mcp-server"]

2. Sign in

Run codex mcp login <name> to complete OAuth for a remote server. MongoDB runs locally; set any credentials MongoDB asks for before starting Codex.

3. Try it

Ask Codex for something MongoDB can do. Query and manage MongoDB databases and Atlas clusters. Approve the first tool call and check the result before allowing write actions automatically.

· Each server is a [mcp_servers.<name>] table in config.toml.
· Use enabled_tools or disabled_tools to keep the tool list short.

FAQ

How do I add the MongoDB MCP server to Codex?: Run: # ~/.codex/config.toml …. Run codex mcp login <name> to complete OAuth for a remote server.
Is this the official MongoDB MCP server?: Yes. It is published by MongoDB as io.github.mongodb-js/mongodb-mcp-server in the official MCP registry.
Does the MongoDB MCP server need an API key?: It runs locally from a package. See MongoDB's docs for any credentials it needs.

Links

MongoDB MCP docs Codex MCP docs MongoDB server details

MongoDB in other clients

Claude Code Gemini CLI Cursor VS Code (GitHub Copilot)

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Work at MongoDB?

Feature MongoDB across the directory and its category from $49/month.

Feature this server

Reviewed Oct 5, 2026. Command generated from the registry record and checked against Codex's documented syntax.