Error code · HTTP 403
mcp_destination_not_allowed
- Title
- MCP server address not allowed
- What happened
- The MCP server resolves to a private or internal address.
- How to fix it
- Register an MCP server reachable on a public address.
- Returned by
- Gateway mode
- Retry
- Retrying the same request fails the same way.
Example response body
{
"type": "https://maskflare.com/docs/errors/mcp_destination_not_allowed",
"title": "MCP server address not allowed",
"status": 403,
"code": "mcp_destination_not_allowed",
"detail": "Register an MCP server reachable on a public address."
}