// HEAD-TO-HEAD · DATABASE SERVERS

Postgres MCPvsSupabasevsNeon MCP

Three database MCP servers, each built for a different workflow. We installed all three, ran a twelve-hour evaluation across Claude Desktop, Cursor, and VS Code, and measured what actually ships.

LAST TESTED APR 22, 2026METHODOLOGY 12 HOURS / SERVERREVIEWERS 3VERDICT AUTHORITY AUTOMATION SWITCH EDITORIAL

Choosing a database MCP server is the architectural decision that ripples through every other choice an agent makes about your data. The wrong server lets an over-eager model run irreversible DDL, leaks credentials into transcripts, or silently drops transactions you assumed were atomic. The right one gives you EXPLAIN plans, scoped credentials, and a read-only mode you can flip with a flag. We installed and ran all three of these servers against real Postgres workloads over twelve hours each: schema introspection, write paths, transaction boundaries, RLS enforcement, and the install experience across Claude Desktop, Cursor, and VS Code. This page is the side-by-side breakdown — what each server gets right, where each one gives ground, and which one earns the recommendation for your shape of work.

// AT A GLANCE

The short version.

Overall Winner

// OFFICIAL

Postgres MCP

Anthropic · v1.2.4

10/10

Editors' Choice

// VENDOR

Supabase

Supabase · vv0.3.1

10/10

Editors' Choice

// VENDOR

Neon MCP

Neon · v1.0.0

8/10

Recommended

// FEATURE MATRIX

11 signals, measured side by side.

01 · Capabilities

Tools exposed · read/write model · transactions

Collapse›

Tool count

14 · most coverage

18 · DB + auth + storage

9 · focused set

Read queries

✓ Full SQL · EXPLAIN · schema introspection

✓ Full SQL · RLS-aware

✓ Full SQL · branch-scoped

Write / DDL

✓ Gated · approval required

✓ Gated · RLS-enforced

✓ Gated · auto-branched · reversible

Transactions

✓ Explicit BEGIN/COMMIT tools

✓ Per-call only

02 · Security & Auth

Connection secrets · scoped credentials · audit

Collapse›

Auth model

Connection string · env var

Service role + anon keys · RLS

API key · scoped to project

Read-only mode

✓ --read-only flag

✓ Via anon key

✓ Per-branch role

Audit log

stdout · structured JSON

Platform audit log · searchable

Branch history · reversible

03 · Client Compatibility

Transport and install method

Collapse›

Transport

stdio

Install method

npx @mcp/server-postgres

npx supabase-mcp-server

npx @neondatabase/mcp-server-neon

04 · Governance & Maintenance

License · community health

Expand›

License

MIT

Apache 2.0

GitHub Stars

4,200

2,800

1,800

// TOOLS EXPOSED

What each server hands the model.

The amber-flagged rows are tools unique to that server.

Postgres MCP14 tools

query

execute

list_schemasunique

list_tables

describe_table

list_indexesunique

explain_queryunique

analyze_statsunique

begin_transactionunique

commit_transactionunique

rollbackunique

list_foreign_keysunique

pg_dump_schemaunique

vacuum_analyzeunique

Supabase18 tools

query

execute

list_tables

describe_table

create_tableunique

alter_tableunique

list_rls_policiesunique

create_rls_policyunique

list_auth_usersunique

create_auth_userunique

list_storage_bucketsunique

upload_fileunique

list_functionsunique

deploy_functionunique

list_branches

create_branch

get_project_settingsunique

run_migrationunique

Neon MCP9 tools

query

execute

list_tables

describe_table

create_branch

list_branches

delete_branchunique

restore_to_pointunique

get_connection_stringunique

Unique to this serverEverything else is shared with at least one peer

// THE VERDICT

There is no “best.” There is best-for.

Overall Editors’ ChoicePostgres MCP— for most teams, most of the time

If you are running Postgres in production and you want a server that behaves like production infrastructure, the official Postgres MCP is the safe, boring, correct choice. Supabase wins the moment your workflow crosses into auth, storage, or RLS. Neon branching is the one feature we would miss most in a migration-heavy workflow.

// BEST FOR

Postgres MCP

Production Postgres. Existing clusters, DBA-governed schemas, workflows where EXPLAIN and transactions matter more than convenience.

// BEST FOR

Supabase

Full-stack prototyping. Greenfield apps needing auth, storage, and RLS in one surface. The BaaS integration is the differentiator.

// BEST FOR

Neon MCP

Migration-heavy work. Branching makes every schema change reversible. Ideal when agents are writing DDL on your behalf.

// METHODOLOGY

How we tested these servers

Each server ran against an identical Postgres 16 cluster on a quiet network for twelve hours. We exercised the full read path (schema introspection, queries, EXPLAIN), the write path (DDL, DML, rollback behavior), and the transaction model. Auth was tested under both happy and adversarial conditions: invalid keys, scoped roles, RLS edge cases. Performance numbers were captured on the same hardware to keep cold-start and p95 figures comparable.

What we tested

Schema introspection accuracy and completeness
Write path safety: DDL gating, transaction boundaries, rollback
EXPLAIN plan output structure and parseability
Auth: env var, OAuth, API key, scoped roles
RLS / row-level enforcement behaviour under anon vs service keys
Cold start latency and p95 query latency
Memory footprint at idle and under load
Install and configuration experience across 4 MCP clients

What we did not test

Replication and high-availability scenarios
Sustained load above 100 concurrent connections
Network partition and recovery behaviour
Custom extensions (pgvector, PostGIS) beyond a smoke test

// BY SERVER

What each one gets right. Where it gives ground.

Postgres MCP

10 / 10

Strengths

Explicit transaction tools (BEGIN/COMMIT) as first-class operations
EXPLAIN plan output returns as structured JSON
Read-only mode via CLI flag, no config surgery needed
Fastest cold start in the category at 180ms
14 tools covering schema introspection, queries, and admin operations

Tradeoffs

Connection-string-only auth, no OAuth flow
No built-in branching for reversible migrations
Zero BaaS features — this is a database client only

Supabase

10 / 10

Strengths

Full Postgres query access with RLS enforcement
Schema management (create tables, add columns, set up policies)
Auth user management and storage bucket operations
Read-only mode available for safe exploration

Tradeoffs

Supabase-specific (general Postgres uses the postgres-mcp server)
Complex RLS policies can produce unexpected query results for agents

Neon MCP

8 / 10

Strengths

Database branching via create_branch and restore_to_point
OAuth with refreshable tokens — the cleanest auth story
Lowest open-issue count (18); well-maintained for its size

Tradeoffs

Fewest tools (9) and narrowest feature set of the three
Scale-to-zero means cold branches add 300-500ms to first query
No EXPLAIN tooling; rely on psql for query tuning

// HOW TO CONNECT

Minimum config to get each running.

Postgres MCP

claude-desktop · stdio

Collapse›

{
  "mcpServers": {
    "postgres": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-postgres"
      ],
      "env": {
        "DATABASE_URL": "postgres://user:pw@host:5432/db",
        "READ_ONLY": "false"
      }
    }
  }
}

Supabase

claude-desktop · stdio

Expand›

{
  "mcpServers": {
    "supabase": {
      "command": "npx",
      "args": ["-y", "@supabase/mcp-server-supabase@latest", "--access-token", "your-token"]
    }
  }
}

Neon MCP

claude-desktop · stdio

Expand›

{
  "mcpServers": {
    "neon": {
      "command": "npx",
      "args": [
        "-y",
        "@neondatabase/mcp-server-neon"
      ],
      "env": {
        "NEON_API_KEY": "napi_...",
        "NEON_PROJECT_ID": "autumn-haze-12345"
      }
    }
  }
}

// FREQUENTLY ASKED

Common questions, answered.

No. Supabase MCP only works against Supabase-hosted Postgres clusters. If you have an existing Postgres cluster, use the official Postgres MCP. Switch only when you are also moving the database itself to Supabase and want auth/storage/RLS in the same surface.

Postgres MCP. Its --read-only flag is a CLI option, not a config setting, which makes it straightforward to enforce in CI. It also exposes explicit BEGIN/COMMIT tools, so transaction boundaries are visible to the agent and the operator.

Yes. Neon MCP exposes create_branch and restore_to_point as first-class tools. The recommended pattern is: create a branch before any DDL, run the migration, validate, then either merge the branch back or delete it. This is the strongest reversibility story of the three.

All three support stdio transport which works with Claude Desktop, Cursor, VS Code, Windsurf, and Cline. Postgres MCP also offers SSE and HTTP transports for remote setups; Supabase adds SSE; Neon stays stdio-only.

Postgres MCP reads DATABASE_URL from the environment, so the connection string never enters the agent context. Supabase reads SUPABASE_SERVICE_ROLE_KEY which carries similar risk and should be scoped to the minimum role. Neon uses an API key which can be revoked from the Neon dashboard without restarting the server.

Postgres MCP. Its explain_query tool returns structured JSON, not text blobs, so the agent can parse and reason about the plan. Supabase and Neon do not expose dedicated EXPLAIN tools — you would fall back to running EXPLAIN as a regular query.

Every 180 days, or sooner when a major release ships in any of the three projects. The reviewedAt and staleAfterDays fields are tracked in our content layer and a weekly check surfaces stale comparisons for editorial action.

// MADE YOUR CHOICE?

View Postgres MCP details

Full editorial review, connection configs for every client, and adoption metrics.

View Postgres MCP →

// DATABASE

View all Database servers

Every database MCP server we’ve reviewed, scored and ranked.

View Database servers →