MCP Server Directory

com.blackwalltier/blackwall

Pre-action risk gate: AI agents call before any irreversible action (money, SQL, delete).

Paleobiodb

Paleobiology Database (PBDB) MCP — the global fossil record. Keyless.

Tribal

Self-hosted semantic memory over MCP for an engineering team's tacit knowledge. Needs Postgres.

io.github.bolnet/memwright

Embedded memory for AI agents with SQLite, pgvector, and Neo4j graph search.

Level MCP

Every Level RMM endpoint, plus a local SQLite fleet store and offline cross-entity rollups no Level

QuickBooks Online MCP

Every QuickBooks Online Accounting entity, plus an offline SQLite mirror and AR/AP aging.

Microsoft SQL Server

Read-only MCP for Microsoft SQL Server: metadata discovery, parameterized SELECT, plans.

DB MCP Server

Database MCP server for MySQL, PostgreSQL, MongoDB, and SQLite with SSH tunneling support.

Knowledge Graph RDBMS

A label property graph on SQLite/Postgres with multi-ontology routing and a gated MCP server.

SQLBot MCP Proxy

MCP server proxy for SQLBot Text-to-SQL queries and report generation.

io.github.ynishi/mini-app-mcp

Agent-First CRUD store MCP server — 1 daemon per table, schema.yaml driven, SQLite backend

io.github.devopam/mcpg

A production-grade PostgreSQL Model Context Protocol (MCP) server.

MCP server for read-only MySQL database queries in Claude Desktop

Openchargemap

Open Charge Map MCP — global EV charging station database (openchargemap.io).

Postgres MCP

PostgreSQL MCP wrapper with .env credential mapping, tool selection, and safe read-only defaults.

Pubchem

PubChem MCP — NIH chemistry compound database (no auth)

io.github.Idle-Sync/db-conn-mcp

A dead-simple, self-hosted MCP server for securely querying databases via AI agents.

Wikipathways

WikiPathways MCP — open community pathway database.

Read-first Redis MCP: SCAN key explorer, keyspace/TTL/memory/slowlog stats, DBA advisor

io.github.davidmosiah/delx-memory

Local-first persistent memory MCP: shared SQLite key/value store, searchable, TTL-aware, secret-safe

LiteScope

Operations toolchain for SQLite, Cloudflare D1 & Turso: inspect, diff, migrate, monitor & repair.

Rawg

RAWG MCP — wraps the RAWG video games database API (rawg.io)

DBHub

Minimal, token-efficient Database MCP Server for PostgreSQL, MySQL, SQL Server, SQLite, MariaDB

Atera MCP

Every Atera RMM + PSA endpoint, plus a local SQLite mirror that answers fleet-health, SLA, and