pctx0
Messages
Create Message
Store a session message. meta must be a JSON string if provided; responses return parsed JSON.
POST
pctx0
Authorizations
Workspace access key for agent/runtime integrations.
Path Parameters
Internal session UUID (not externalId).
Body
application/json
Response
Created
Example:
"55555555-5555-5555-5555-555555555555"
Example:
"33333333-3333-3333-3333-333333333333"
Available options:
system, user, assistant Example:
"user"
Example:
"I prefer dark mode in the dashboard"
Example:
"2026-07-01T12:00:00Z"
