Convex MCP errors for local projects

[fubz]

I have a local convex deployment that I am unable to connect to the mcp server.

I started the dev server with: npx convex dev --local

I added the mcp to claude code with: claude mcp add-json convex '{"type":"stdio","command":"npx","args":["convex","mcp","start"]}'

● convex - status (MCP)(projectDir: "/home/user/my-cool-project") ⎿ Error: {"error":"Not Authorized: Run npx convex dev to login to your Convex project."}