Field-by-field comparison

Compare the evidence before choosing an MCP.

Each signal stays separate, missing facts remain visible, and the column order follows your selection.

MCPs in this comparison

Uncheck an MCP to remove it. Comparing two or three keeps each signal in its own row.

Open canonical comparison link

Comparable alternatives

Shown only when capability or industry context overlaps.

Side-by-side MCP evidence comparison
Evidence fieldMotherDuck MCP ServerWatchlist candidateSupabase MCPMCP100 Selected
Task fit
Best for
  • Analytics users who want verifiable natural-language access to MotherDuck/DuckDB data with traceable SQL.
  • 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
  • Users who need a broadly proven, low-risk, fully mature Selected-grade integration today.
  • 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
  • Avoid high-impact or sensitive production use unless the documented authentication, permissions, rollback, and data handling match your environment.
  • 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

endpoint:https: · Publisher source ↗

First-party MCP

Supabase · Publisher source ↗

Maintenance
Maintenance details

Stale

Repo: Not documented

Package: Not documented

Repo: Aug 14, 2026

Package: Not documented

Popularity evidence
GitHub starsNot documented

2,863

GitHub stars · checked 2026-08-14T18:46:26.000Z

Package downloads / 30 daysNo reliable download data

484,999

package downloads / 30 days · checked 2026-09-08

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
AuthenticationOAuth-based remote MCP authorization is documented by MotherDuck.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.
CostMotherDuck compute/storage and plan limits apply; MCP access does not imply free query execution.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.
PermissionsMotherDuck documents isolated compute and read-only access by default; any enabled write/pipeline capabilities must follow the authenticated account and server configuration.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 handlingQueries run in MotherDuck isolated compute; data accessed is the authenticated MotherDuck/DuckDB data available to that account.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
  • Strong product integration, but MCP-specific operational maturity and write/pipeline governance still need longer evidence for Selected.
  • 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 contextStrong product integration, but MCP-specific operational maturity and write/pipeline governance still need longer evidence for Selected.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 review2026-09-13T00:00:00Z2026-09-05
Candidate evidence2026-09-13T00:00:00Z2026-09-05T00:00:00.000Z

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

Read the evidence method →