1. Verify the tool is enabled
Open Tools and confirm that the tool is enabled. Disabled tools aren’t advertised to MCP clients.2. Check the published version
Only the published version of your MCP server is visible to connected clients. If you’ve recently added or edited a tool, make sure the version containing those changes has been published. Saving a draft or creating a version alone isn’t enough.3. Confirm the API operation was imported
If a tool doesn’t exist at all, verify that the corresponding API operation was selected during the OpenAPI import. Operations that weren’t imported won’t appear as MCP tools.4. Review the tool configuration
Check that the tool has:- A valid name
- A clear description
- No duplicate tool names
5. Refresh the client
Many MCP clients cache the list of available capabilities. After publishing changes:- Restart or reconnect the MCP server.
- Refresh the tool list if your client supports it.
- Start a new conversation or session if tools still don’t appear.
Reconnecting forces the client to request the published capability list again.
6. Check client compatibility
Some MCP clients may not support every possible input schema. If a tool has a complex or unsupported input shape, the client may choose not to display it. Review your tool’s input definition and, if possible, simplify it.Still missing?
If the tool still doesn’t appear:- Confirm the latest version is published.
- Verify the tool is enabled.
- Reconnect the client.
- Check Logs to confirm the client successfully refreshed the server’s capabilities.