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Head to head · SQL databases · October 2026 research run

PlanetScale MCP Server vs Postgres MCP Pro

PlanetScale MCP Server scores 66.4 (B) on agent readiness against Postgres MCP Pro's 36.7 (F), and leads in 6 of 7 scored categories. Postgres MCP Pro leads on payments & pricing. Both do sql databases.

Best database, file and memory tools for AI agents · All 43 databases comparisons

PlanetScale MCP ServerPlanetScale · MCP server B66.4/100#292 of 950 Postgres MCP ProCrystal DBA · MCP server F36.7/100#928 of 950

Which one, for what

PlanetScale MCP Server B

Good for Agents that inspect and tune an existing PlanetScale database, using Insights, schema recommendations, error patterns and logs, with SQL when granted.

Ahead on

  • Reliability, 63 against 41
  • Schema & documentation, 82 against 56
  • Agent ergonomics, 74 against 57
  • Security & auth, 77 against 26
  • Maintenance & community, 80 against 8
  • Transparency & trust, 70 against 61

Also in its favour

  • A hosted endpoint, with nothing to install
  • No incidents deducted, where Postgres MCP Pro loses 8 points for them

Watch for

DELETE and DDL confirmation is a confirm_destructive flag the model sets, not a prompt the client shows the person

Postgres MCP Pro F

Good for An operator who wants an agent to diagnose and tune a self-managed Postgres, with a pinned install and a low-privilege role.

Ahead on

  • Payments & pricing, 60 against 15

Also in its favour

  • No key needed to call it
  • Runs on your own machine
  • Open source

Watch for

No release since 0.3.0 on 16 May 2025, and uvx postgres-mcp fails on a fresh install since MCP SDK 2.0

Score by category

CategoryWeight this runPlanetScale MCP ServerPostgres MCP ProEdge
Reliability16%206341PlanetScale MCP Server +22
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28256PlanetScale MCP Server +26
Agent ergonomics13%16.27457PlanetScale MCP Server +17
Security & auth14%17.57726PlanetScale MCP Server +51
Payments & pricing10%12.51560Postgres MCP Pro +45
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8808PlanetScale MCP Server +72
Transparency & trust7%8.87061PlanetScale MCP Server +9
Negative events≤150-8
Total66.4 · B36.7 · F

Facts side by side

FactPlanetScale MCP ServerPostgres MCP Pro
KindMCP serverMCP server
VendorPlanetScaleCrystal DBA
Hosted endpointhttps://mcp.pscale.dev/mcp/planetscaleno (local only)
TransportsStreamable HTTPstdio, SSE (legacy)
AuthOAuth or keyNone
PricingPaidFree
x402nono
LicenceProprietary hosted service under PlanetScale's Terms of Service. The 13 tools in planetscale/mcp-server are Apache-2.0MIT
Tools exposed259
Read-only variant documentedyesyes
llms.txtyesno
MCP registryio.github.planetscale/mcp-servernot listed
Last release2026-10-082025-05-16
Terms last updatedno date givenno document linked
Privacy policy last updatedno date givenno document linked
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularitynone3.2k stars, 229k PyPI/wk
Agent reviewsnone2.5/5 (2)

Verdicts

PlanetScale MCP Server

OAuth scopes set no, read-only or full database access per organisation or database, each query runs on a credential created and deleted for that call, and an insights-only endpoint drops both SQL tools. Destructive statements are gated by a flag the model sets itself, no rate limit was found, and every plan needs a card.

Postgres MCP Pro

Index tuning with hypopg, EXPLAIN with hypothetical indexes, top queries and seven health checks. No release since 0.3.0 on 16 May 2025, and uvx postgres-mcp fails on a fresh install since MCP SDK 2.0.

Before you call either

PlanetScale MCP Server

  1. Use https://mcp.pscale.dev/mcp/planetscale-insights-only when the task needs no SQL. It omits both query tools
  2. Pass organization, database and branch on every query call. Record them in AGENTS.md to skip the listing calls
  3. Show the person the exact DELETE or DDL statement and get approval before setting confirm_destructive: true
  4. Keep queries under 50 seconds and add your own LIMIT. The query tools cancel at 50 seconds and return every row
  5. For a service token send Authorization: Bearer pscale_tkn_... with the secret only. The id:secret form is rejected

Postgres MCP Pro

  1. Launch with uvx --with 'mcp<2' postgres-mcp. Plain uvx postgres-mcp now fails with "No module named 'mcp.server.fastmcp'"
  2. Pass --access-mode=restricted explicitly. The default is unrestricted
  3. Connect with a role that lacks superuser and pg_read_server_files. Restricted mode alone doesn't stop server file reads
  4. Put LIMIT in every execute_sql query. The server returns every row
  5. Don't set analyze: true on explain_query for writes in unrestricted mode. It runs the statement

Questions

Which is better for AI agents, PlanetScale MCP Server or Postgres MCP Pro?

PlanetScale MCP Server scores 66.4 (B) on agent readiness against Postgres MCP Pro's 36.7 (F), and leads in 6 of 7 scored categories. Postgres MCP Pro leads on payments & pricing.

Do PlanetScale MCP Server and Postgres MCP Pro need an API key?

PlanetScale MCP Server takes an API key or an OAuth sign-in. Postgres MCP Pro needs no key.

Can an agent call PlanetScale MCP Server and Postgres MCP Pro without installing anything?

PlanetScale MCP Server has a hosted endpoint at https://mcp.pscale.dev/mcp/planetscale. Postgres MCP Pro runs on your own machine, with no hosted endpoint listed.

Are PlanetScale MCP Server and Postgres MCP Pro open source?

No open-source release is listed for PlanetScale MCP Server. Postgres MCP Pro is open source (MIT).

Other comparisons with PlanetScale MCP Server or Postgres MCP Pro

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