The MCP Server Directory
Every Model Context Protocol server, scored on reliability, documentation, maintenance, and adoption. Independent, opinionated, refreshed daily from the official registry.
What this is
The MCP Server Directory is a live, independently maintained index of Model Context Protocol servers published to the official registry. Each server is scored 0–10 on four dimensions: reliability, documentation quality, maintenance velocity, and adoption. The directory is free, updated daily, and built by MegaOne AI.
Facilitator
3.7/10Verify signed x402 payments; treasury-scoped settlement is irreversible.
Invoicemama
3.7/10Look up invoices, estimates, and customers. Save a draft. Nothing is sent.
Intelligence
3.7/10Bitcoin-native credit ratings. ⚡ Lightning pay-per-query (99 sats) or API subscriptions.
Veles Finance MCP
3.7/10AI financial agent: due diligence, SEC 10-K, Kelly Criterion. Pay-per-call via x402 USDC.
MCP Server
3.7/10Trust layer for agent payments (x402, Base): verify agents, risk scores, signed escrow verdicts.
Paysafe
3.7/10Payment firewall for x402: scans for replay, overpayment, PII/secret leaks, prompt-injection.
Yaktool
3.7/1073 local deterministic tools: GTIN, feeds, CSV-XLSX, Digital Link QR, e-invoices. Rules cited.
Fec
3.5/10FEC campaign finance data: candidate fundraising, donors, and spending
Apify Market Intelligence
3.5/10Pay-per-call Apify Store analytics with free MCP discovery and x402 payments.
Lead Intelligence
3.5/10Pay-per-call lead intelligence tools with free MCP discovery and x402 payments.
Free · No spam
New servers, score changes, breakages
Every Monday: what shipped, what broke, what's worth trying. Five minutes. No filler.
Four dimensions, weighted
- Reliability (30%) — repository present, permissive license, not archived, official status.
- Documentation (20%) — description length, website presence, README quality.
- Maintenance (25%) — how recently the code was pushed; versioning discipline.
- Adoption (25%) — GitHub stars (log-scaled), remote availability, official endorsement.
What is MCP?
MCP stands for Model Context Protocol. It is an open standard introduced by Anthropic in late 2024 that lets AI assistants like Claude connect to external tools, data sources, and services through a common interface. An MCP server is a small program that exposes one capability (file access, a database, an API) to any MCP-compatible AI client.
Where does the data come from?
Every server in this directory is pulled from the official Model Context Protocol Registry at registry.modelcontextprotocol.io. We also enrich each entry with GitHub metadata (stars, last commit, license, primary language) where a repository is linked. The full re-scan runs daily.
How are servers scored?
Each server gets a 0–10 overall score, weighted from four sub-scores: reliability (30%), documentation (20%), maintenance (25%), and adoption (25%). The full methodology is visible on this page under "How scoring works".
Is this affiliated with Anthropic?
No. MegaOne AI is independent. Anthropic created the MCP standard and maintains the reference implementations, but this directory is built separately and rates all servers including Anthropic's own.
How often does the directory update?
The pipeline re-fetches the full registry and re-scores every active server once per day. Individual entries are refreshed whenever a new version is published to the official registry.
Is it free?
Yes. Browsing, filtering, and searching the directory is free. The weekly email briefing is free. There is no account required.