Docs/Reference/ErrorsAPI Error CodesLook up Mappinest API error codes and understand what each response means during integration and troubleshooting.CodeDescription400Bad request (missing fields or tileset)401Missing or invalid key403Domain or key mismatch for the requested tileset404Tile or source does not exist409Upload in progress or locked413File too large429Rate limit exceeded500Internal server errorLast updated: April 14, 2026PreviousOpenLayers