Flows
Update flow fields
Update only the fields you send. A rename needs neither a config nor a token; internal_version is required alongside config.
PATCH
Update flow fields
Only the fields you send change. A rename needs neither a config nor a token;
internal_version is required alongside config. A body carrying nothing but internal_version is a 400 — it would rotate the token without changing anything.Headers
API Key for authentication
Path Parameters
Flow identifier, e.g. fl_ab12cd34
Body
application/json
Response
The updated flow
A flow plus the pieces needed to edit it. config is the graph, ui is editor-only metadata the runtime ignores, and internal_version is the concurrency token you send back on a write.
The flow definition: inputs, nodes, output.
Editor-only metadata. The runtime never reads it.
Concurrency token. Send it back on PUT (required) and on PATCH when changing config.