API reference · CAIN Trajectory

Create Trajectory

POST /fabric/trajectories/

Last reviewed 2026-11-06

POST /fabric/trajectories/

Create a new trajectory.

Parameters

Name	In	Type	Meaning
`identity_id`	query	string or null
`agent_id`	query	string or null

Request body

CreateTrajectoryRequest or null

Responses

Status	Meaning	Body
`200`	Successful Response	object
`401`	The X-API-Key header is missing, or the key is unknown, revoked or replaced.	`Error`
`403`	The key is valid but may not do this (for example an agent key approving its own held action).	`Error`
`422`	Validation Error	`HTTPValidationError`
`429`	Rate limit or monthly quota reached. Wait for the number of seconds in Retry-After when it is sent.	`Error`

Try it

Your API key X-API-Key Remember the key in this tab onlyidentity_id queryagent_id queryRequest body application/json

This call changes data in the account the key belongs to.

The request goes from your browser straight to this site. Your key is not stored unless you tick the box, and then only in this tab's session storage.

Code

curl -sS -X POST 'https://cainstudio.online/fabric/trajectories/' \
  -H "X-API-Key: $CAIN_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"identity_id": "identity-id", "agent_id": "agent-id"}'

import json, os, urllib.request

req = urllib.request.Request('https://cainstudio.online/fabric/trajectories/', method='POST',
    headers={"X-API-Key": os.environ["CAIN_API_KEY"], "Content-Type": "application/json"},
    data=json.dumps({
      "identity_id": "identity-id",
      "agent_id": "agent-id"
    }).encode())
with urllib.request.urlopen(req, timeout=60) as r:
    print(r.status, json.load(r))

const res = await fetch("https://cainstudio.online/fabric/trajectories/", {
  method: "POST",
  headers: {
    "X-API-Key": process.env.CAIN_API_KEY!,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "identity_id": "identity-id",
    "agent_id": "agent-id"
  }),
});
console.log(res.status, await res.json());

Schemas used

CreateTrajectoryRequest · Error · HTTPValidationError · ValidationError

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