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.
St Tn
3.9/10USPS state code TN.
St Ut
3.9/10USPS state code UT.
St Va
3.9/10USPS state code VA.
St Vt
3.9/10USPS state code VT.
St Wi
3.9/10USPS state code WI.
St Wv
3.9/10USPS state code WV.
St Wy
3.9/10USPS state code WY.
Status Class Ok
3.9/10HTTP status class 1xx-5xx
Std Number Ok
3.9/10ISO/IEC standard number shape
Tbsp To Ml
3.9/10Tablespoons to milliliters
Tsp To Ml
3.9/10Teaspoons to milliliters
Typeid Shape
3.9/10TypeID shape check
Ulid Crockford
3.9/10ULID Crockford charset
Unix Doy
3.9/10Unix day-of-year from seconds
Uuid Nil Ok
3.9/10Nil UUID shape
Vcard Ok
3.9/10vCard shape, body discarded
Watt To Hp
3.9/10Watts to horsepower
Week Number
3.9/10UTC ISO week number
Weekdate Utc
3.9/10UTC ISO week-date shape
Xml Tag Count
3.9/10XML tag count, body discarded
Xxhash Ok
3.9/10xxHash hex, input discarded
Z85 Ok
3.9/10Z85 charset, input discarded
Gate Network
3.9/10x402 gate network for agents to discover gates, inspect definitions, and fetch preflight data.
Signalcrest
3.9/10Cross-source trend signals from 10 developer communities, scored every 30 minutes.
Booking Brasil Hoteis
3.9/10Hotéis, pousadas e hostels do Booking Brasil com e-mail, telefone, razão social e CNPJ da Receita.
Century
3.9/10UTC century number
Decade
3.9/10UTC decade start year
Doy Ok
3.9/10Day-of-year 1-366 band
Hour Ok
3.9/10UTC hour 0-23 band
Iso Ord
3.9/10UTC ISO ordinal date YYYY-DDD
Iso Wd
3.9/10UTC ISO weekday 1-7
Iso Year
3.9/10UTC ISO week-yearing year
Jd Ok
3.9/10Julian Day integer band
Kph Ms
3.9/10km/h to m/s, number discarded
Min Ok
3.9/10UTC minute 0-59 band
Mjd Ok
3.9/10Modified Julian Day integer
Month Len
3.9/10Days in current UTC month
Ms Ok
3.9/10UTC millisecond 0-999 band
Nl Ok
3.9/10newline count, text discarded
Qtr Ok
3.9/10Quarter 1-4 band
Sec Ok
3.9/10UTC second 0-60 band
Tab Ok
3.9/10tab count, text discarded
Unix Mon
3.9/10Unix month 1-12 from seconds
Unix Q
3.9/10Unix quarter 1-4 from seconds
Unix Wk
3.9/10Unix week number from seconds
Usd Ok
3.9/10USD def count, body discarded
Woy Ok
3.9/10Week-of-year 1-53 band
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New servers, score changes, breakages
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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.