API reference · CAIN Budget

Get Budget Usage

GET /fabric/budgets/{budget_id}/usage

Last reviewed 2026-10-02

GET /fabric/budgets/{budget_id}/usage

Get budget usage statistics.

Parameters

Name	In	Type
`budget_id` required	path	string
`period_start`	query	string or null
`period_end`	query	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 onlybudget_id pathperiod_start queryperiod_end query

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 GET 'https://cainstudio.online/fabric/budgets/<budget_id>/usage' \
  -H "X-API-Key: $CAIN_API_KEY"

import json, os, urllib.request

req = urllib.request.Request('https://cainstudio.online/fabric/budgets/<budget_id>/usage', method='GET',
    headers={"X-API-Key": os.environ["CAIN_API_KEY"]})
with urllib.request.urlopen(req, timeout=60) as r:
    print(r.status, json.load(r))

const res = await fetch("https://cainstudio.online/fabric/budgets/<budget_id>/usage", {
  method: "GET",
  headers: {
    "X-API-Key": process.env.CAIN_API_KEY!,
  },
});
console.log(res.status, await res.json());

Schemas used

HTTPValidationError · ValidationError

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