Email contact@coinop.dev for integration help, service questions, higher-volume use, billing questions, abuse reports, or responsible security disclosure.
Include the interface you used (REST or MCP), the endpoint or tool name, the HTTP status, and an approximate timestamp. Never email a watch key, wallet secret, payment signature, or other private credential.
Current service health is machine-readable at https://longwatch.dev/health. API contracts and examples are at the developer portal. Security contact metadata is also published at /.well-known/security.txt.