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.
Http 451
3.9/10Meaning of HTTP 451.
Http 501
3.9/10Meaning of HTTP 501.
Http 502
3.9/10Meaning of HTTP 502.
Http 504
3.9/10Meaning of HTTP 504.
Http 505
3.9/10Meaning of HTTP 505.
Http 507
3.9/10Meaning of HTTP 507.
Http 511
3.9/10Meaning of HTTP 511.
In To Cm
3.9/10Inches to centimeters
Ok
3.9/10IPv4 shape, address discarded
Ok
3.9/10IPv6 shape, address discarded
Iso Date Utc
3.9/10UTC ISO date
Iso Time Utc
3.9/10UTC ISO time only
Ok
3.9/10ISO 3166-1 alpha-2 shape
Ok
3.9/10ISO 4217 currency shape
Ok
3.9/10ISO 8601 datetime shape
Julian Day
3.9/10Julian day number
K To C
3.9/10Kelvin to celsius
Kb To Mb
3.9/10Kilobytes to megabytes
Kg To Lb
3.9/10Kilograms to pounds
Kib To Bytes
3.9/10KiB to bytes
Knot To Kmh
3.9/10Knots to km/h
Ksuid Len
3.9/10KSUID character length
Ksuid Shape
3.9/10KSUID shape check
L To Gal
3.9/10Liters to US gallons
Lang Aa
3.9/10ISO 639 language tag aa.
Lang Af
3.9/10ISO 639 language tag af.
Lang Am
3.9/10ISO 639 language tag am.
Lang As
3.9/10ISO 639 language tag as.
Lang Az
3.9/10ISO 639 language tag az.
Lang Be
3.9/10ISO 639 language tag be.
Lang Bg
3.9/10ISO 639 language tag bg.
Lang Bn
3.9/10ISO 639 language tag bn.
Lang Bs
3.9/10ISO 639 language tag bs.
Lang Ca
3.9/10ISO 639 language tag ca.
Lang Cs
3.9/10ISO 639 language tag cs.
Lang Cy
3.9/10ISO 639 language tag cy.
Lang Da
3.9/10ISO 639 language tag da.
Lang El
3.9/10ISO 639 language tag el.
Lang Eo
3.9/10ISO 639 language tag eo.
Lang Et
3.9/10ISO 639 language tag et.
Lang Eu
3.9/10ISO 639 language tag eu.
Lang Fa
3.9/10ISO 639 language tag fa.
Lang Fi
3.9/10ISO 639 language tag fi.
Lang Fj
3.9/10ISO 639 language tag fj.
Lang Fo
3.9/10ISO 639 language tag fo.
Lang Ga
3.9/10ISO 639 language tag ga.
Lang Gd
3.9/10ISO 639 language tag gd.
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.