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.
Lang It
3.9/10ISO 639 language tag it.
Lang Ja
3.9/10ISO 639 language tag ja.
Lang Ko
3.9/10ISO 639 language tag ko.
Lang Nl
3.9/10ISO 639 language tag nl.
Lang Pt
3.9/10ISO 639 language tag pt.
Lang Ru
3.9/10ISO 639 language tag ru.
Lang Zh
3.9/10ISO 639 language tag zh.
Mi To Km
3.9/10Miles to kilometers
Month Name
3.9/10UTC month name
Ok
3.9/10SHA-1, input discarded
Tz Utc
3.9/10Current local time in UTC.
Url Origin
3.9/10URL origin only
Url Path
3.9/10URL path only
Weekday Number
3.9/10UTC weekday 1-7
Hlrisk
3.9/10Real-time Hyperliquid BTC/ETH liquidation risk index and recent backstop liquidations, free via MCP.
Accept Json
3.9/10Accept JSON hint
Ok
3.9/10Adler-32 hex, input discarded
Arxiv Id Shape
3.9/10Check an arXiv id shape.
Ok
3.9/10BCP 47 language tag shape
Bytes Kib
3.9/10Bytes to KiB
Bytes Mib
3.9/10Bytes to MiB
C To K
3.9/10Celsius to kelvin
Cache Fresh
3.9/10Fresh cache hint
Cache Max Age
3.9/10Cache-Control max-age shape
Catalog Tools
3.9/10Tool catalog size
Cidr Shape
3.9/10CIDR shape, value discarded
Cm To In
3.9/10Centimeters to inches
Color Rgb Ok
3.9/10RGB tuple shape
Compat Json
3.9/10JSON Accept hint
Compat Sse
3.9/10SSE Accept hint
Content Type Ok
3.9/10Content-Type token shape
Ok
3.9/10CRC32 hex, input discarded
Ok
3.9/10CRC8 hex, input discarded
Cron Ok
3.9/10Five-field cron shape
Cron Utc Hint
3.9/10UTC cron five-field shape
Cuid Shape
3.9/10CUID shape check
Ok
3.9/10djb2 hex, input discarded
Doi Shape
3.9/10Check a DOI shape.
Domain Labels
3.9/10Domain label split
Doy Utc
3.9/10UTC day of year
Ean Shape
3.9/10EAN/UPC digit shape
Etag Ok
3.9/10ETag shape, value discarded
Etag Shape
3.9/10ETag shape
Ok
3.9/10FNV-1 hex, input discarded
Ok
3.9/10FNV-1a hex, input discarded
Ft To M
3.9/10Feet to meters
Fx Aed
3.9/10ISO 4217 currency AED.
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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.