Databases MCP servers

DB Gateway

sijunkim

145+ tools across 8 databases: MySQL, PostgreSQL, Redshift, MongoDB, Redis, Kafka, and more

NexQL Postgres MCP

NexQL-OSS

Standalone Postgres MCP server — schema-aware, read-only by default, installable everywhere.

Sap Abap SQL

daslabhq

Checks and fixes ABAP Open SQL for SAP's ADT data-preview console. Connects to nothing.

SQLGuard — permission before production writes

cabbageandtea

AI agents need permission before production SQL writes. Pilot $100 · Gateway $299. Lint≠authorize.

Breaking Changes & Migration Data

nigelcox98

What breaks when you upgrade a package, and what to use instead - from official docs.

MCP DB Connect

phatngoit

MCP server for Oracle, MSSQL, PostgreSQL, MySQL, SQLite, MongoDB, and Qdrant vector search access.

Orangerail

KimHyeongRae0

Turns your Prisma schema into typed MCP tools, with destructive writes gated behind human approval

Ainative Postgres MCP

AINative-Studio

Zero-config Postgres MCP with auto-provisioning — drop-in for server-postgres.

Cvserver

convexvalue

Live US options chains with Greeks and IV, a screener, SQL, and FMP fundamentals.

CPersona

Cloto-dev

Persistent AI memory in one SQLite file: 3-layer hybrid search, confidence scoring, 29 tools.

valv

valv-dev

Let coding agents query any SQL database safely. Read-only by default and scoped by your policies.

npm Package Ws Has 241560546 Weekly Downloads But SDK

nexus-mcp-infra

Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di

Airtable

domdomegg

Read and write access to Airtable database schemas, tables, and records.

Entity Enricher

TOT-Concept

Multi-LLM entity enrichment: schemas, single/batch enrichment, fusion, model benchmarks.

Bestjsonformatter

skrcode

Private, lossless JSON tools for formatting, validation, repair, analysis, querying, and schemas.

Validate

machinegrade

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

MCP Schema Audit

tylerscomic-lab

Audits MCP tool definitions for patterns that make models call tools wrong or mis-fill args.

mayankmahavar1mg MCP

tata1mg

Developer-workflow MCP server for catalyst-core: migration guidance, debugging, and task planning.

ACR — Agent Composition Records

Tethral-Inc

Interaction profile registry for AI agents. Log interactions, query behavioral lenses.

quantakrypto pqc-tools

quantakrypto

Scan code for quantum-vulnerable cryptography and get NIST post-quantum migration guidance.

pgvector

mittalpk

Similarity search, hybrid search, and index management for pgvector-backed PostgreSQL tables

klanex

chrassy

Reliable async execution for agent tool calls: schema gating, retries, idempotency, audit trail.

Fixzi — MCP & API Schema Drift Monitor

rohitcodilya

Monitor MCP servers, API contracts and AI outputs for schema drift. Alerts on breaking changes.

BackendGen

SiTouhemi

Validate compact backend specs and generate tested NestJS, Prisma, and PostgreSQL repositories.