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.
Stl Ok
4.3/10STL solid/header check, file discarded
Svg Path Ok
4.3/10SVG path command count, markup discarded
Tag Uri
4.3/10tag: URI shape, value discarded
Tbsp Ml
4.3/10Tablespoons to milliliters, number discarded
Te N
4.3/10TE trailers token count, value discarded
Tel Uri
4.3/10tel: URI digit shape, value discarded
Tiger Len
4.3/10Tiger hex length, input discarded
Title Ok
4.3/10Title Case token shape, value discarded
Token N
4.3/10whitespace token count, text discarded
Toml Arr Ok
4.3/10TOML array-of-tables count, body discarded
Toml Table Ok
4.3/10TOML table count, body discarded
Ton Kg
4.3/10Short tons to kilograms, number discarded
Topojson Ok
4.3/10TopoJSON object count, body discarded
Trailer Ok
4.3/10Trailer field-name count, value discarded
Train Ok
4.3/10Train-Case charset, value discarded
Trim Ok
4.3/10leading/trailing space count, text discarded
True Cl
4.3/10True-Client-IP shape, value discarded
Tsp Ml
4.3/10Teaspoons to milliliters, number discarded
Tsv Ok
4.3/10TSV column count, cells discarded
Typeid Ok2
4.3/10TypeID prefix_suffix, value discarded
Ulid Ms
4.3/10ULID millisecond prefix, value discarded
Ulid Ok
4.3/10ULID 26-char Crockford shape, value discarded
Um Mm
4.3/10Micrometers to millimeters, number discarded
Unix Iso
4.3/10Unix seconds to ISO date, number discarded
Upgrade Ok
4.3/10Upgrade protocol token, value discarded
Upper Ok
4.3/10UPPERCASE charset, value discarded
Urlish Ok
4.3/10URL-ish token charset, value discarded
Urn Ok
4.3/10URN NID shape, value discarded
Ok
4.3/10UTF-16 BOM/length band, value discarded
Uu Len
4.3/10Uuencode line length band, input discarded
Uuid Nhex
4.3/10UUID no-hyphen 32-hex, value discarded
Uuid Urn
4.3/10urn:uuid shape, value discarded
Ok
4.3/10UUID v4 random-bit layout, value discarded
Ok
4.3/10UUID v6 time-reordered layout, value discarded
Ok
4.3/10UUID v8 custom layout, value discarded
Vary Ok
4.3/10Vary header token count, value discarded
Vcf Ok
4.3/10vCard FN field count, body discarded
Via N
4.3/10Via protocol hop count, value discarded
Week Mon
4.3/10UTC Monday of the current ISO week
Week Thu
4.3/10UTC Thursday of the current ISO week
Whirl Len
4.3/10Whirlpool hex length, input discarded
Wkb Ok
4.3/10WKB endian marker, bytes discarded
Wkt Ok
4.3/10WKT geometry token, value discarded
Word N
4.3/10Unicode word count, text discarded
Wrap Ok
4.3/10soft-wrap width 80 band, text discarded
Ws Ok
4.3/10whitespace run count, text discarded
Www Auth
4.3/10WWW-Authenticate scheme token, value discarded
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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.