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.
Hex Upper Ok
4.3/10Uppercase hex charset, input discarded
Hexkey Len
4.3/10Hex key length band, value discarded
Highway Len
4.3/10HighwayHash hex length, input discarded
Host Ok
4.3/10Hostname shape, value discarded
Hostname Ok
4.3/10Hostname shape, value discarded
Hsts Ok
4.3/10HSTS max-age band, value discarded
Html Entities Ok
4.3/10HTML entity count, markup discarded
Html H1 N
4.3/10HTML h1 count, markup discarded
Html Meta N
4.3/10HTML meta tag count, markup discarded
Html Script N
4.3/10HTML script tag count, markup discarded
Html Tag Count
4.3/10HTML tag count, markup discarded
Htmllang Ok
4.3/10html lang attribute shape, markup discarded
Ical Ok
4.3/10iCalendar shape, body discarded
Ico Bytes
4.3/10ICO magic-byte check, file discarded
Ico Magic
4.3/10ICO magic-byte check, file discarded
Idn Ok
4.3/10IDNA label charset, host discarded
Image Tag Ok
4.3/10Container image tag charset, name discarded
Indent Kind
4.3/10Tabs vs spaces indent, text discarded
Ini Sections
4.3/10INI section count, values discarded
Ion Ok
4.3/10Amazon Ion version marker, body discarded
Irc Ok
4.3/10IRC channel name shape, value discarded
Ok
4.3/10ISBN-10 digit shape, value discarded
Ok
4.3/10ISBN-13 digit shape, value discarded
Iso To Unix
4.3/10UTC ISO to unix seconds, value discarded
Issue Key Ok
4.3/10TICKET-123 issue key shape, value discarded
Joule Cal
4.3/10Joules to calories, number discarded
Jpeg Magic
4.3/10JPEG magic-byte check, file discarded
Js Import Count
4.3/10JS import count, source discarded
Json Keys Ok
4.3/10JSON top-level key count, values discarded
Json Ld N
4.3/10JSON-LD script count, markup discarded
Json Pointer Ok
4.3/10JSON Pointer shape, path discarded
Json Pretty Ok
4.3/10Pretty-print JSON shape, body discarded
Json Schema Ok
4.3/10JSON Schema keyword count, body discarded
Jsonl Ok
4.3/10JSONL object-line count, bodies discarded
Jsonld Ok
4.3/10JSON-LD @type count, body discarded
Jwt Exp Shape
4.3/10JWT exp claim shape, token discarded
Jwt Hdr Ok
4.3/10JWT header segment shape, token discarded
Jwt Header Ok
4.3/10JWT header segment shape, token discarded
Jwt Shape
4.3/10JWT three-part shape, token discarded
K8S Kind Ok
4.3/10Kubernetes kind token, manifest discarded
Kebab Case Ok
4.3/10kebab-case charset, value discarded
Kib Bytes
4.3/10KiB to bytes, number discarded
Km Miles
4.3/10Kilometers to miles, number discarded
Knot Kmh
4.3/10Knots to km/h, number discarded
Ksuid Ts
4.3/10KSUID timestamp prefix, value discarded
Label For Ok
4.3/10label[for] count, markup discarded
Landmark Ok
4.3/10ARIA landmark count, markup discarded
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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.