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.
Jdbc MCP Server
4.7/10Read-only SQL, plans, schema for AI agents: PostgreSQL, Oracle, SQL Server, Firebird, SQLite, JDBC
Skillmem
4.7/10Skill memory for coding agents: learn, recall, reinforce, decay. Local SQLite, no API key.
Myc
4.7/10Task queue, decisions and memory for coding agents. Local SQLite, no network. Requires Bun.
Monacloud MCP
4.7/10Buy .vn/intl domains in VND, deploy apps, Postgres, email, VietQR pay — Vietnam MCP for AI agents
MCP Mysql Read Only
4.7/10Read-only MySQL access, with the database and server switchable mid-conversation.
MCP Server Db2I
4.7/10Read-only SQL queries and schema inspection for IBM Db2 for i over ODBC, JT400 or Mapepire (SSH).
Hostim
4.7/10Deploy and manage apps, databases, volumes and domains on Hostim, an EU cloud hosting platform.
Mneme Memory
4.7/10Cross-session memory for AI coding agents via six tools; local-first SQLite store.
MCP Db Read Only
4.7/10Read-only SQL, MongoDB, Redis and Elasticsearch access, switchable mid-conversation.
Tabellum
4.7/10MCP bridge to the Tabellum database client: schema, reads, SQL drafts; writes approved in the app.
Repo Memory MCP
4.7/10Persistent local memory for MCP-compatible AI coding agents, stored per repository in SQLite.
Postgres MCP
4.7/10Read-only Postgres: drop-in for the archived server-postgres, with schema context.
Quickbooks Desktop
4.7/10Review-gated bookkeeping in QuickBooks Desktop on Windows: reports, SQL, batches, reversal.
Ohmyhost MCP
4.7/10Operate ohmyho.st hosting from your coding agent: deploy GitHub apps, Postgres, mail, domains.
Dev Error Explainers
4.7/10Offline, deterministic cause and fix for Node, npm, Next.js, CORS and Postgres URL errors.
Neosql MCP
4.7/10Schemas, SQL, ERDs, and codegen for PostgreSQL, MySQL, Oracle, SQLite, and more via NeoSQL Desktop.
Nuthatch
4.7/10Query an EVM contract's indexed history with SQL, via a local nuthatch nest and nuthatch dev.
Pg Readonly MCP
4.7/10A read-only Postgres MCP server that parses SQL rather than pattern-matching it.
Elekto MCP Sql
4.7/10Read-only SQL Server introspection and querying: schema, definitions, dependencies and data.
Memory Find
4.7/10Local, explainable knowledge base for AI agents: hybrid search with provenance over SQLite.
Pi Durabletask MCP
4.7/10Delegate Claude/Codex tasks to configured Pi, with steering and optional SQLite restart recovery.
Factstore
4.7/10A fact store for AI agents, on Postgres: registered attributes, every write citing its evidence.
Rowbase
4.7/10Safe, read-only-by-default MySQL, PostgreSQL & SQLite access for AI agents. TOON output.
Open Memex
4.7/10Local-first memory for AI coding agents — Markdown + SQLite FTS5, shared across editors via MCP.
MCP Sync82
4.7/10Persistent, structured project memory for AI coding agents, stored locally in SQLite.
Rowstile
4.7/10Check, test, prove and review a rowstile policy: access rules for Postgres row-level security
Quarry
4.7/10Safety-railed database access for agents: Postgres, MySQL, Redis. Read-only by default.
Codex Supervisor MCP
4.7/10Parallel Codex CLI workers from any MCP client: one git worktree each, state in SQLite, web board.
Zektor
4.7/10Managed Postgres and Valkey hosted in Germany. Agents can create a trial database with no signup.
Universal Db MCP
4.7/10Read-only, guarded SQL access for AI agents: PostgreSQL, MySQL, ClickHouse, Oracle, SQL Server, Db2
Faucet
4.7/10SQL database to MCP tools and REST API: PostgreSQL, MySQL, SQL Server, Oracle, SQLite, Snowflake.
Nvd
4.5/10NVD MCP — wraps the NIST National Vulnerability Database API.
Trivia
4.5/10Trivia MCP — wraps Open Trivia Database (free, no auth)
Code Sandbox
4.5/10Execute Python, JavaScript, SQL code in a sandbox. x402 micropayment.
Urlhaus
4.5/10URLhaus MCP — wraps abuse.ch URLhaus malware URL database (free, no auth)
Gdelt
4.5/10GDELT MCP — Global Database of Events, Language, and Tone (free, no auth)
Nsf Awards
4.5/10NSF Awards MCP — National Science Foundation award database (free, no auth)
Discogs
4.5/10Discogs MCP — music release / artist / label database
Malwarebazaar
4.5/10MalwareBazaar MCP — abuse.ch malware sample database (free, key required)
Opencellid
4.5/10OpenCellID MCP — cell tower geolocation database (free with key)
Overpass
4.5/10OpenStreetMap Overpass MCP — programmatic queries against the OSM database
Pubchem
4.5/10PubChem MCP — NIH chemistry compound database (no auth)
Trefle
4.5/10Trefle MCP — global plant database (1M+ species)
Ai Incident Db
4.5/10AI Incident Database (AIID) MCP
Gnomad
4.5/10gnomAD MCP — Broad Institute Genome Aggregation Database (GraphQL).
Osv Dev
4.5/10OSV.dev — Google's open-source vulnerability database
Simbad
4.5/10SIMBAD MCP — CDS astronomical object database.
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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.