CAIN-42 CAIN Studio

API reference · CAIN Budget

Evaluate Budget

POST /fabric/budgets/evaluate

Last reviewed 2026-10-02

POST /fabric/budgets/evaluate

Evaluate if an action is allowed under budget constraints.

Request body

EvaluateRequest (required)

FieldTypeMeaning
amount_cents requirednumber> 0.0
action requiredstringmin length 1
scopestringdefault "tenant"
scope_idstring or null
trajectory_idstring or null
identity_idstring or null
agent_idstring or null
trace_idstring or null

Responses

StatusMeaningBody
200Successful ResponseJSON
422Validation ErrorHTTPValidationError
401No key, or a key that is not validJSON detail
429Rate limit for your plan reached; retry after the Retry-After secondsJSON detail

Try it

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/budgets/evaluate' \
  -H "X-API-Key: $CAIN_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"amount_cents": 1.0, "action": "action", "scope": "tenant"}'

Schemas used

HTTPValidationError · ValidationError · EvaluateRequest

← Create Budget · all 13 CAIN Budget calls · Budget Health →

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