Prerequisites
- Friday Studio installed and running
- At least one space loaded with a signal configured
- The daemon API is available at
http://localhost:18080
Trigger a signal
Every workflow starts with a signal. Send a POST request with a payload and Friday runs the job.Fire and wait
Send a POST and block until the job completes:Stream progress in real time
AddAccept: text/event-stream to receive a live SSE stream as the job executes:
Check run status
Use thesessionId from the trigger response to check on the run:
Cancel a running job
If you need to stop a job mid-execution:Next steps
API reference
Full endpoint reference for every API operation.
Signals
Signal types, payload schemas, and webhook configuration.

