feat: mcp url

[gregnr]

Adds a new URL for MCP at http://127.0.0.1:54321/mcp. Proxies from kong to studio at /api/mcp.

Also adds the new MCP URL to supabase start and supabase status output:

Started supabase local development setup.
API URL: http://127.0.0.1:54321
GraphQL URL: http://127.0.0.1:54321/graphql/v1
S3 Storage URL: http://127.0.0.1:54321/storage/v1/s3
MCP URL: http://127.0.0.1:54321/mcp
...

Testing

1. Checkout this branch feat/mcp-url and start a local stack:

   go run . start

2. Add to your preferred MCP client using the URL http://127.0.0.1:54321/mcp.

   • If using Cursor you can use this button:

     

   • If using Claude Code you can use this command:

     claude mcp add --transport http local-supabase http://127.0.0.1:54321/mcp

3. Test the tools:

   • "What tables do I have?"
   • "What migrations have I run?"
   • "Create a todos table"

Resolves DEVWF-703. Follow up to supabase/supabase#38797

[coveralls]

Pull Request Test Coverage Report for Build 17961341283

Details

• 14 of 17(82.35%) changed or added relevant lines in 2 files are covered.
• 5 unchanged lines in 1 file lost coverage.
• Overall coverage remained the same at 54.889%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/status/status.go	13	16	81.25%

Files with Coverage Reduction	New Missed Lines	%
internal/gen/keys/keys.go	5	12.9%

Totals
Change from base Build 17941895924:	0.0%
Covered Lines:	6360
Relevant Lines:	11587

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💛 - Coveralls