supabase-mcp
Provides an MCP (Model Context Protocol) server (Python, Docker) that exposes tools for CRUD operations on tables in a Supabase database using SUPABASE_URL and a SUPABASE_SERVICE_KEY.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Uses SUPABASE_SERVICE_KEY (service role key), which is high privilege. README only shows passing it via env vars; it does not document least-privilege, row-level security handling, audit logging, or protections/validation around table/column access or unsafe writes/deletes. TLS is likely required by Supabase endpoints, but not stated in this README.
⚡ Reliability
Best When
You control the Supabase project and table permissions (ideally via RLS) and you run the MCP server in a trusted environment where the service key can be protected.
Avoid When
You cannot safely protect SUPABASE_SERVICE_KEY or you need strong guardrails against accidental/unsafe writes/deletes.
Use Cases
- • AI assistants that need to read from Supabase tables with filters and pagination
- • Automation that inserts records into Supabase tables from natural-language/task flows
- • Updating existing Supabase rows based on filter criteria
- • Deleting records from Supabase based on filter criteria
Not For
- • Public/anonymous or untrusted environments (service-role key usage is sensitive)
- • Unrestricted data access (no mention of row-level security enforcement within the MCP tool itself)
- • High-stakes operations without audit, validation, and least-privilege controls
- • Complex query requirements beyond basic filter/limit/offset patterns
Interface
Authentication
Uses Supabase service role key passed via SUPABASE_SERVICE_KEY. README does not describe fine-grained scopes or OAuth flows; service-role implies elevated privileges.
Pricing
No pricing information for the MCP server itself is provided in the README; costs would be driven by Supabase usage and hosting.
Agent Metadata
Known Gotchas
- ⚠ Service-role key is powerful; an agent can potentially write/delete data if not constrained (no explicit guardrails/allowlists mentioned).
- ⚠ Filter semantics and supported operators are not specified in the README; agents may need schema awareness.
- ⚠ Pagination is via limit/offset, which may be less reliable under concurrent updates than cursor-based pagination.
- ⚠ No documented retry/idempotency behavior for create/update/delete operations.
Alternatives
Full Evaluation Report
Comprehensive deep-dive: security analysis, reliability audit, agent experience review, cost modeling, competitive positioning, and improvement roadmap for supabase-mcp.
AI-powered analysis · PDF + markdown · Delivered within 30 minutes
Package Brief
Quick verdict, integration guide, cost projections, gotchas with workarounds, and alternatives comparison.
Delivered within 10 minutes
Score Monitoring
Get alerted when this package's AF, security, or reliability scores change significantly. Stay ahead of regressions.
Continuous monitoring
Scores are editorial opinions as of 2026-03-30.