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LaunchBlitz exposes a WebSocket API for transaction execution. The socket accepts authenticated JSON text frames, dispatches them into the backend transaction handlers, and streams request progress back as structured responses.

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Endpoint

Use the connection guide for authentication, keepalives, and a minimal client.

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Supported platforms

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Message flow

  1. Open a WebSocket with ?key=YOUR_API_KEY.
  2. Wait for the initial connected text frame.
  3. Send a JSON text frame with platform, type, and the fields required by that method.
  4. Handle streamed responses such as ingress_ack, dispatch, submit, mint, confirmed, failure, or error.
Use generic transactions for the shared request shape, TXResponses for streamed responses, then go to the platform page you need. These pages follow the methods wired into the transaction_socket service itself. They intentionally document the registered handlers exposed by the socket, not every transaction enum that may exist elsewhere in the backend codebase.