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.
Ok
4.3/10PEP 621 project name shape, body discarded
Percent Of
4.3/10a as percent of b, numbers discarded
Percent Ok
4.3/10Percent-encode triplet count, input discarded
Pgp Armor Ok
4.3/10PGP armor fence check, key discarded
Plist Ok
4.3/10plist key count, values discarded
Plus Code Ok
4.3/10Open Location Code shape, value discarded
Pmid Ok
4.3/10PubMed id shape, value discarded
Png Magic
4.3/10PNG magic-byte check, file discarded
Pom Ok
4.3/10Maven POM coordinate shape, body discarded
Port 27017
4.3/10Whether 27017 is a common TCP/UDP port.
Port 8443
4.3/10Whether 8443 is a common TCP/UDP port.
Postcode Ca Ok
4.3/10Canadian postal code shape, value discarded
Postcode Nl Ok
4.3/10Dutch postcode shape, value discarded
Postcode Uk Ok
4.3/10UK postcode shape, value discarded
Pow Ok
4.3/10Integer power band, numbers discarded
Pragma Ok
4.3/10Pragma token charset, value discarded
Proto Ok
4.3/10Protobuf field-tag count, body discarded
Protobuf Ok
4.3/10Protobuf wire-type scan, body discarded
Puny Host
4.3/10Punycode host shape, value discarded
Punycode Len
4.3/10Punycode length, input discarded
Pushid Ok
4.3/10Firebase push-id charset, value discarded
Pyproject Ok
4.3/10pyproject.toml table count, body discarded
Q Start Utc
4.3/10UTC start of the current quarter
Quarter Start
4.3/10UTC start of the current quarter
Query Pair Count
4.3/10Query pair count, URL discarded
Quoted Ok
4.3/10RFC 2047 encoded-word shape, input discarded
Ratio Ok
4.3/10a/b ratio shape, numbers discarded
Relative Day Utc
4.3/10yesterday/today/tomorrow from a UTC date
Requirements Ok
4.3/10requirements.txt name count, versions discarded
Retry Status Hint
4.3/10Whether an HTTP status is retryable
Ripemd Len
4.3/10RIPEMD hex length, input discarded
Robots Allow Count
4.3/10robots.txt Allow count, body discarded
Round Dp
4.3/10Decimal-place count for a number
Rtf Ok
4.3/10RTF header check, body discarded
Screaming Ok
4.3/10SCREAMING_SNAKE charset, value discarded
Script Count
4.3/10HTML script tag count, markup discarded
Semver Range Ok
4.3/10SemVer range operators, value discarded
Ok
4.3/10SHA-3 hex length, input discarded
Ok
4.3/10SHA-512 hex length, input discarded
Shebang Ok
4.3/10Shebang interpreter token, line discarded
Shortuuid Ok
4.3/10Short-UUID charset, value discarded
Siphash Len
4.3/10SipHash hex length, input discarded
Siphash Ok
4.3/10SipHash hex length, input discarded
Sitemap Url Count
4.3/10Sitemap URL count, body discarded
Slack Channel Ok
4.3/10Slack channel name shape, value discarded
Sni Ok
4.3/10SNI hostname shape, value discarded
Snowflake Ts
4.3/10Snowflake timestamp bits, id discarded
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.