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.
Tapwatermap
4.1/10Query US tap-water quality from the EPA's SDWIS records — by city, system, or contaminant.
Lexia Juris
4.1/10MCP droit & fiscalite francais : 76 codes, jurisprudence, BOFiP. LexIA Juris, EDIVIA. Abonnement.
7Timer
4.1/107Timer! MCP.
Digitalnz
4.1/10DigitalNZ MCP.
Europeana
4.1/10Europeana MCP.
Google Books
4.1/10Google Books MCP
Harvard Art
4.1/10Harvard Art Museums MCP.
Healthdata
4.1/10HealthData.gov MCP. Keyless.
Ipquery
4.1/10IPQuery MCP.
Jsdelivr
4.1/10JSDelivr Data API MCP
Maptiler
4.1/10MapTiler MCP.
Nypl
4.1/10NYPL Digital Collections MCP.
Owasp
4.1/10OWASP MCP — keyless.
Photon
4.1/10Photon MCP — OSM geocoder
Smithsonian
4.1/10Smithsonian Open Access MCP.
Stratz
4.1/10STRATZ Dota 2 MCP.
Trove
4.1/10Trove MCP.
Day Planner
4.1/10Plan your perfect day out anywhere: itineraries and neighbourhood guides, tuned to mood and weather.
Enigmata MCP
4.1/10Аccess to personalized Enigmata astrological forecasts (day/week/month/thematic) for AI assistants
Politics Feeds
4.1/10Politics Feeds MCP.
Space Feeds
4.1/10Space Feeds MCP.
Us
4.1/10Court e-filing and process serving. Submit filings, serve process, and manage orders.
Personal
4.1/10Gabriel S. Gusmao: scientific ML, papers, and local JAX CLIs: KINN, Optinpy, mkin4py, xl2py.
Arc Flash Platform
4.1/10Cálculos de engenharia elétrica pela norma brasileira (NBR), validados, com citação normativa.
Phone
4.1/10Phone number validation MCP.
Review MCP
4.1/10Multi-model code review: a panel of models + detectors return a pass/fail verdict. Paid via x402.
Flatway Estimate
4.1/10French property prices, market trends & live listings for any French address. Powered by DVF data.
Fitfly Engine
4.1/10Deterministic fitness coaching engine: adaptive programs, progression math, readiness autoregulation
Color
4.1/10Color utilities MCP.
Coordinates
4.1/10Coordinate geometry MCP.
Crontab
4.1/10Crontab expression MCP.
Csv
4.1/10CSV JSON MCP.
Datecalc
4.1/10Date calculator MCP.
Diff
4.1/10Text diff MCP.
Duration
4.1/10ISO 8601 duration MCP.
Emoji
4.1/10Emoji MCP.
Geohash
4.1/10Geohash MCP.
Htmlentities
4.1/10HTML entities MCP.
Htmltext
4.1/10HTML → text MCP.
Imei
4.1/10IMEI validation MCP.
Ipaddress
4.1/10IP address utilities MCP.
Json
4.1/10JSON tools MCP.
Jsonschema
4.1/10JSON Schema validation MCP.
Jwt
4.1/10JWT decoder MCP.
Markdown
4.1/10Markdown utilities MCP.
Medical Codes
4.1/10Medical codes MCP.
Mime
4.1/10MIME type lookup MCP.
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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.