topmcps
Browse MCPs

MCP Comparison · 2026

MongoDB vs PostgreSQL (archived) MCP Server

Comparing MongoDB and PostgreSQL (archived) as MCP servers? MongoDB (query & inspect mongodb) is best when collection schema exploration. PostgreSQL (archived) (query postgres) is best when auditing or replacing an existing install. Both run as Model Context Protocol servers and can coexist in the same client. Updated 2026.

MongoDB

MongoDB

Query and inspect MongoDB collections from Claude, Cursor, and VS Code.

PostgreSQL (archived)

PostgreSQL (archived)

Anthropic's reference Postgres MCP — archived July 2025 and superseded by Postgres MCP Pro or the Supabase MCP.

Side-by-side specs

Pulled from each MCP's verified fact sheet.

 MongoDBPostgreSQL (archived)
Primary functionQuery & Inspect MongoDBQuery Postgres
MaintainerMongoDBAnthropic (archived 2025-07-10)
PricingOpen sourceOpen source
Setup complexityLow · ~5 minLow · ~3 min
Transportstdiostdio
Auth modelAPI keyAPI key
LicenseApache-2.0MIT
LanguageTypeScriptTypeScript
Latest versionlatestarchived
Compatible clientsClaude, Cursor, VS Code, Windsurf, Any MCP-compatible client, MongoDB 5+, MongoDB AtlasClaude, Cursor, Any MCP-compatible client, PostgreSQL 12+
Last verified2026-05-272026-05-29

Which one should you pick?

Decision rubric drawn from each MCP's documented strengths.

Choose MongoDB

  • Collection schema exploration
  • Aggregation pipeline drafting
  • Document inspection
See full MongoDB write-up →

Choose PostgreSQL (archived)

  • Auditing or replacing an existing install
  • Reference reading for how the early MCP servers were structured
See full PostgreSQL (archived) write-up →

Pick something else if…

  • Transactional multi-document writes
  • New installs (the repo is archived)

Feature breakdown

Key capabilities each server ships out of the box.

MongoDB

  • Atlas + self-hosted support
  • Connection-string auth
  • Schema inference per collection
  • Read-only mode by default
  • Aggregation pipeline execution
  • Index introspection

PostgreSQL (archived)

  • Archived on 2025-07-10 — no upstream maintenance
  • Read-only contract is bypassable per Datadog Security Labs
  • SELECT-only tool surface (when the contract holds)
  • Stdio transport; one connection per process
  • Recommended migration: Postgres MCP Pro or Supabase MCP

Install snippets

Open the detail page for ready-to-paste config for every major client.

Install MongoDB

Setup snippets for Claude, Cursor, VS Code, Windsurf →

npx -y mongodb-mcp-server --connectionString="mongodb+srv://user:pass@cluster.mongodb.net"

Install PostgreSQL (archived)

Setup snippets for Claude, Cursor, VS Code, Windsurf →

npx -y @modelcontextprotocol/server-postgres postgresql://user:pass@localhost/db

FAQ

MongoDB vs PostgreSQL (archived): which MCP server should I use?

Pick MongoDB when collection schema exploration. Pick PostgreSQL (archived) when auditing or replacing an existing install. MongoDB is built for query & inspect mongodb, while PostgreSQL (archived) focuses on query postgres.

Can I run both MongoDB and PostgreSQL (archived) together?

Yes. MCP clients run each server as a separate process and surface every server's tools simultaneously, so you can install both and let your agent decide which to call. Be deliberate with auth scopes when stacking servers.

How fresh is this comparison?

Updated for 2026. MongoDB's last verification: 2026-05-27. PostgreSQL (archived)'s last verification: 2026-05-29. We refresh detail-page facts on every catalog rebuild.

More MongoDB comparisons

MongoDBvsPostgres MCP ProMongoDBvsSQLiteMongoDBvsDuckDBMongoDBvsRedis

Browse all Databases MCPs? See the full ranked list →