Supabase MCP local fails

Hello,

Claude kept using my

supabase_prod

supabase_prod

(for data read only access) instead of the local

supabase

supabase

and it kept driving me mad.

Seems like there's an issue with the local supabase MCP:

When clicking on "Authenticate" I get:

HTTP 404: Invalid OAuth error response

HTTP 404: Invalid OAuth error response

supabase cli:

2.58.5

2.58.5

Here is my

.mcp.json

.mcp.json

    "supabase": {
      "type": "http",
      "url": "http://localhost:54321/mcp"
    },
    "supabase_prod": {
      "type": "http",
      "url": "https://mcp.supabase.com/mcp?project_ref=<redacted>&read_only=true&features=database"
    },

    "supabase": {
      "type": "http",
      "url": "http://localhost:54321/mcp"
    },
    "supabase_prod": {
      "type": "http",
      "url": "https://mcp.supabase.com/mcp?project_ref=<redacted>&read_only=true&features=database"
    },

Supabase•3mo ago•

4 replies

Tristan

Supabase MCP local fails

Hello,

Claude kept using my

supabase_prod

supabase_prod

(for data read only access) instead of the local

supabase

supabase

and it kept driving me mad.

Seems like there's an issue with the local supabase MCP:

When clicking on "Authenticate" I get:

HTTP 404: Invalid OAuth error response

HTTP 404: Invalid OAuth error response

supabase cli:

2.58.5

2.58.5

Here is my

.mcp.json

.mcp.json

    "supabase": {
      "type": "http",
      "url": "http://localhost:54321/mcp"
    },
    "supabase_prod": {
      "type": "http",
      "url": "https://mcp.supabase.com/mcp?project_ref=<redacted>&read_only=true&features=database"
    },

    "supabase": {
      "type": "http",
      "url": "http://localhost:54321/mcp"
    },
    "supabase_prod": {
      "type": "http",
      "url": "https://mcp.supabase.com/mcp?project_ref=<redacted>&read_only=true&features=database"
    },

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