MCP ConfigsMay 12, 2026·2 min read

mcp-mongo-server — MongoDB MCP with Read-Only Mode

mcp-mongo-server is an MCP server you can run via `npx` to let assistants query MongoDB, with a read-only mode for safer database access.

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Agent ready

This asset can be read and installed directly by agents

TokRepo exposes a universal CLI command, install contract, metadata JSON, adapter-aware plan, and raw content links so agents can judge fit, risk, and next actions.

Needs Confirmation · 62/100Policy: confirm
Agent surface
Any MCP/CLI agent
Kind
Mcp
Install
Manual
Trust
Trust: Established
Entrypoint
npx -y mcp-mongo-server mongodb://localhost:27017/database
Universal CLI install command
npx tokrepo install b71adadc-2c90-5a66-85a9-207e783d8aee
install contractmetadata JSONadapter planraw content
Intro

mcp-mongo-server is an MCP server you can run via npx to let assistants query MongoDB, with a read-only mode for safer database access.

  • Best for: Giving agents structured MongoDB access while keeping a safety dial (read-only)
  • Works with: MongoDB connection URI; MCP clients like Claude Desktop/Cursor/Windsurf (integration guide linked in README)
  • Setup time: 2–10 minutes

Practical Notes

  • GitHub: 278 stars · 54 forks; pushed 2026-02-06 (verified via GitHub API).
  • README shows npx -y mcp-mongo-server <mongodb-uri> and --read-only as the primary usage pattern.
  • README documents env vars like MCP_MONGODB_URI and MCP_MONGODB_READONLY for configuration.

Main

Safer database access patterns for assistants:

  1. Start in read-only until you’ve validated tool behavior and logging.
  2. Prefer a dedicated MongoDB user with minimal privileges, even when read-only is enabled.
  3. Use the MCP client’s system prompt to declare what “allowed queries” mean (collections, time range, limits).
  4. Treat DB writes as a separate workflow with explicit approvals.

The key is turning “ask the DB” into a controllable tool boundary, not an unrestricted superpower.

FAQ

Q: Is npx required? A: That’s the documented default in the README (npx -y mcp-mongo-server …).

Q: How do I enable read-only? A: Pass --read-only or set MCP_MONGODB_READONLY (README).

Q: What clients can use it? A: README links an integration guide for Claude Desktop, Windsurf, Cursor, and Docker setups.

🙏

Source & Thanks

Source: https://github.com/kiliczsh/mcp-mongo-server > License: MIT > GitHub stars: 278 · forks: 54

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