Troubleshooting
The app can’t connect
- Check the address. It is
https://api.pokemcp.com/mcp, ending in/mcp. - Choose Streamable HTTP. VGC Teambuilder doesn’t support the older SSE transport, and
https://api.pokemcp.com/sseanswers410 Gone. Many apps fall back to SSE when no transport is set. See the note for your app on Coding agents or Agents and self-hosted apps; for example, Gemini CLI needshttpUrlrather thanurl, and Cline and OpenClaw need the transport set explicitly. - Restart or reload the app after editing a config file. Most only read their MCP servers at startup.
The app asks you to sign in
There is no account and nothing to sign in to. Set authentication to None where the app asks. In opencode, add "oauth": false to the server entry.
The tools don’t show up
Check that the server is turned on in the app’s MCP or connector settings. Some apps add a server switched off, and organizations can block custom servers by policy. Then ask something that needs the tools, such as “Which formats does VGC Teambuilder support?”
Error messages
| Error | Meaning | What to do |
|---|---|---|
406 Not Acceptable | The client didn’t send Accept: application/json, text/event-stream. | Use an MCP client library, or send both types. |
405 Method Not Allowed on a GET | The client tried to open an event stream. VGC Teambuilder doesn’t use one. | Nothing. MCP clients expect this and carry on. |
410 Gone | The address is the retired /sse endpoint, or the app is using the SSE transport. | Use /mcp with Streamable HTTP. |
429 Too Many Requests | Too many requests from your network in a short time. | Wait a minute and try again. |
Still stuck? Tell us what you tried on the support page .
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