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Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionMongoDB MCP ServerOfficial MCP server for MongoDB databases and Atlas clustersChEMBL MCP ServerUnofficial MCP server providing advanced access to the ChEMBL chemical database
FMRS70 / 100 · B75 / 100 · B
Reliability10 / 2012 / 20
Security and permissions16 / 2016 / 20
Maintenance14 / 2014 / 20
Documentation16 / 2018 / 20
Setup experience14 / 2015 / 20
Best for
  • Developers and data analysts who want to interact with MongoDB via natural language
  • Scenarios needing MongoDB integration into LLM workflows
  • Teams using MongoDB Atlas looking to automate cluster management
  • Drug discovery and computational chemistry researchers
  • Bioinformatics teams needing ChEMBL data through AI assistants
  • Developers comfortable with Node.js or Docker
Not for
  • Users who need generic MCP services without database interaction
  • Users needing full write access without configuring safety measures (default is read-only)
  • Users requiring local storage or non-standard transports (only stdio and HTTP supported)
  • Production settings requiring official ChEMBL support (this is unofficial)
  • Users without a Node.js or Docker environment
  • General database tasks unrelated to ChEMBL
Required permissions
  • Network access: connect to MongoDB instance or Atlas API
  • File system access (optional): export data files, log files
  • Atlas API credentials (required for Atlas tools)
  • Outbound network access to https://www.ebi.ac.uk/chembl/api/data
  • Read-only access to public API data; no authentication credentials required
Risks and side effects
  • If read-only mode is not enabled, tools can modify or delete database data
  • Exposed Atlas API credentials could lead to unauthorized cluster management
  • HTTP transport without authentication may be exposed to unauthorized clients
  • Server-side JavaScript operators may be executed, but disabled by default
  • Unofficial project with license marked NOASSERTION (README claims MIT); verify licensing yourself
  • Data accuracy depends on the ChEMBL REST API and the server's parsing may contain defects
  • 30-second request timeouts may constrain large batch queries
  • README inconsistency on tool count (22 vs 27) raises documentation reliability concerns
Supported clientsClaude Desktop, VS Code, Cursor, Windsurf, GitHub Copilot CLI, OpenCodeClaude Desktop
Tools5227