Reliability
Whether the server starts consistently, completes the MCP handshake, and behaves as its tool declarations claim.
FollowMCP automatically evaluates servers across five explainable dimensions from source material. Scores total 100 and cannot be bought.
Whether the server starts consistently, completes the MCP handshake, and behaves as its tool declarations claim.
Whether permissions, credentials, data boundaries, and side effects are clear and follow least privilege.
Whether releases, commits, issue responses, and dependency updates remain active.
Whether setup, auth, tool parameters, limits, and troubleshooting are documented with verifiable detail.
The number and complexity of steps from obtaining dependencies to a working connection in major clients.
The most common failure of directory sites is that every entry looks the same — a paraphrased README with a star count pasted next to it. FMRS exists to force a checkable, disputable rationale instead of just restating a repo's own pitch.
Scores only read objective, verifiable evidence: the source repository itself, its release and commit history, its README, and its install manifest. They ignore star counts, ignore adjectives from a vendor's own description, and are never adjustable for payment — that's scoring rule 2.
All five dimensions draw on public information from the source repository. No user votes, no paid reviews, no third-party rating aggregation.
85 and above is an A, 70–84 a B, 55–69 a C, and anything under 55 is a D.
A D isn't a penalty — it's the default result of missing evidence. Plenty of D-graded projects work fine; their README just doesn't spell out install steps, permission scope, or a tool list. The rule is no evidence, no score, not no evidence, pass by default.