API reference · CAIN Sentinel

Evaluate Trust

POST /fabric/sentinel/evaluate

Last reviewed 2026-10-02

POST /fabric/sentinel/evaluate

Evaluate trust state by consuming CAIN Impact output.

Complete loop: DRIFT → IMPACT → SENTINEL

Returns trust determination with: - current trust state - previous trust state - triggering event - impact assessment - evidence - confidence - recommended response - required authorization - execution status

Request body

EvaluateRequest (required)

Field	Type	Meaning
`tenant` required	string
`impact_data` required	object
`drift_data`	object or null
`authority_exposure`	number	default `0.0`
`evidence_ids`	array of string or null

Responses

Status	Meaning	Body
`200`	Successful Response	JSON
`422`	Validation Error	`HTTPValidationError`
`401`	No key, or a key that is not valid	JSON `detail`
`429`	Rate limit for your plan reached; retry after the Retry-After seconds	JSON `detail`

Try it

Your API key X-API-Key Remember the key in this tab onlyRequest 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/sentinel/evaluate' \
  -H "X-API-Key: $CAIN_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"tenant": "tenant", "impact_data": {}, "authority_exposure": 0.0}'

import json, os, urllib.request

req = urllib.request.Request('https://cainstudio.online/fabric/sentinel/evaluate', method='POST',
    headers={"X-API-Key": os.environ["CAIN_API_KEY"], "Content-Type": "application/json"},
    data=json.dumps({
      "tenant": "tenant",
      "impact_data": {},
      "authority_exposure": 0.0
    }).encode())
with urllib.request.urlopen(req, timeout=60) as r:
    print(r.status, json.load(r))

const res = await fetch("https://cainstudio.online/fabric/sentinel/evaluate", {
  method: "POST",
  headers: {
    "X-API-Key": process.env.CAIN_API_KEY!,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "tenant": "tenant",
    "impact_data": {},
    "authority_exposure": 0.0
  }),
});
console.log(res.status, await res.json());

Schemas used

HTTPValidationError · ValidationError · EvaluateRequest

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