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Set up the project's existing JWT secret as an in_use JWT signing key. This endp

An MCP tool from the Supabase Management API server, hosted on mcp.hjlabs.in.

Set up the project's existing JWT secret as an in_use JWT signing key. This endpoint will be removed in the future… [POST /v1/projects/{ref}/config/auth/signing-keys/legacy]

Name on the gateway: supabase_api__v1_create_legacy_signing_key · may change things.

Parameters

NameTypeDescription
ref requiredstringProject ref

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "supabase_api__v1_create_legacy_signing_key",
  "arguments": {
    "ref": "…"
  }
}

Or connect the Supabase Management API server directly, which lists 167 tools including this one:

Run in your terminal
claude mcp add --transport http hj-supabase-api https://mcp.hjlabs.in/mcp/supabase-api \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the set up the project's existing jwt secret as an in_use jwt signing key. this endp tool with ref set to ….

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