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Side-by-side MCP evidence comparison
Evidence fieldPlanetScale MCPShortlist candidateSupabase MCPMCP100 Recommended
Task fit
Best for
  • PlanetScale database organization and branch administration
  • Use when operating PlanetScale databases and branches.
  • Inspecting one Supabase project's schema, logs, advisors, and docs
  • Development environments using project-scoped read-only access
  • Teams that understand database and deployment consequences
Not ideal for
  • Database/organization access is consequential, including schema or branch changes.
  • Production database administration by an unattended agent
  • Users needing only public Supabase documentation
  • Organizations unable to grant Supabase OAuth access to an MCP client
Avoid when
  • Database/organization access is consequential, including schema or branch changes.
  • The server would be left organization-wide rather than project-scoped
  • Write-capable SQL, migrations, functions, branches, or storage changes cannot be human-approved
  • Production secrets or customer records could be returned to the model
Provenance
Provenance details

First-party MCP

PlanetScale · Publisher source ↗

First-party MCP

Supabase · Publisher source ↗

Maintenance
Maintenance details

Repo: Not documented

Package: Not documented

Repo: Sep 24, 2026

Package: Sep 21, 2026

Popularity evidence
GitHub starsNot documented

2,919

GitHub stars · checked 2026-09-24T04:16:20.864000Z

Package downloads / 30 daysNo reliable download data

406,869

package downloads / 30 days · checked 2026-09-24T04:17:50.300000Z

Shared repository stars

5

Shared repository stars (not MCP-specific) · checked 2026-10-20

Not documented
Client coverage
Client coverage detailsNot documented
Claude Code✓ Streamable HTTP
Claude Desktop✓ Streamable HTTP
Codex✓ Streamable HTTP
VS Code✓ Streamable HTTP
Cursor✓ Streamable HTTP
OpenCode✓ Streamable HTTP
Client coverage noteLocal stdio runs on your computer. Streamable HTTP connects to a remotely hosted MCP server.
Access and data
AuthenticationThe hosted PlanetScale MCP authenticates with OAuth.Hosted MCP uses browser OAuth and grants organization access to the MCP client. Project scope, read-only mode, and feature groups are encoded in URL query parameters. Enterprise-managed authentication is GA for eligible Team and Enterprise organizations. Access remains scoped to each user's existing Supabase role and permissions.
CostPlanetScale is a paid database service; current pricing starts with paid clusters and also includes charges for items such as routers, backup storage, and public egress.The MCP server is open source; normal Supabase plan, database, branch, Edge Function, storage, and usage charges apply. Branching and some storage operations require a paid plan.
PermissionsPlanetScale documents configurable access including read-only or full-access permissions for production and development database branches.Without project_ref the hosted server can access all projects in the authorized organization. With project_ref it is limited to one project. read_only=true uses a read-only Postgres user for SQL and disables listed mutation tools. Feature groups can further narrow exposed tools.
Data handlingPlanetScale states that short-lived database credentials are created on demand for each query and deleted immediately after execution. Queries include source SQL comments for traceability.Enabled tools may return schemas, table data from executed queries, logs, security/performance advisors, project metadata, publishable keys, types, and Edge Function source. Hosted mode sends tool requests through Supabase's MCP service.
Limitations
Tradeoffs
  • Recommend read-only, or insights-only variant; docs outweigh README for tool completeness
  • Project scoping removes account-level tools but materially reduces blast radius.
  • Read-only mode disables mutations but also removes migration, deployment, branch, and storage configuration workflows.
  • Branching and some storage capabilities require paid plans; the server is pre-1.0 and may change.
Risk contextThe MCP can execute database queries and, with sufficient permission, make consequential schema/branch changes. Database mutations can affect production data and service cost.Unscoped or write-enabled access can affect every project in an organization, execute SQL, apply migrations, deploy functions, or manage branches. Always set project_ref and read_only=true first, minimize feature groups, and avoid production data.
Evidence date
Editorial review2026-10-192026-09-05
Candidate evidence2026-10-192026-09-24T04:25:05.554391Z

Popularity, maintenance, fit, permissions, and client support are independent evidence fields.

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