GET /v1/usage
Totals usage between `start` and `end` (default: this calendar month so far), grouped by any of `product`, `unit`, `key`, `project` and `day`. Nodes report usage within seconds; the last minute may still change.

Authentication

Bearer Token (b3os_sk_ API key or b3os_pat_ token) API Key (cookie: __Host-b3os_session)

Query Parameters

start string (date-time) optional query
end string (date-time) optional query
group_by string optional query
Comma-separated dimensions.
Example: "product,unit,day"
project_id string optional query
Only this project.

Responses

200 The usage summary.
application/json
object string REQUIRED
Enum: usage_summary
start string (date-time) REQUIRED
end string (date-time) REQUIRED
group_by string[] REQUIRED
Array of: string
rows object[] REQUIRED
Array of:
product string REQUIRED
unit string REQUIRED
qty number REQUIRED
key_id string
project_id string
day string (date)
400 The request failed validation (`invalid_request`, `invalid_url`).
401 Missing, malformed, expired or revoked credentials (`unauthorized`).
403 Authenticated but not allowed (`forbidden`, `egress_denied`).
429 A rate, concurrency or quota limit applies (`rate_limited`, `concurrency_limited`, `quota_exceeded`).
500 Something failed inside B3OS (`internal`). Retry with backoff.
503 The node or the product is not available right now (`node_unavailable`, `product_unavailable`, `capacity_unavailable`).
curl -X GET 'https://beta-api.b3os.org/v1/usage' \  -H 'Authorization: Bearer YOUR_API_TOKEN'
const response = await fetch('https://beta-api.b3os.org/v1/usage', {  method: 'GET',  headers: {      "Authorization": "Bearer YOUR_API_TOKEN"  }});const data = await response.json();console.log(data);
import requestsheaders = {    'Authorization': 'Bearer YOUR_API_TOKEN'}response = requests.get('https://beta-api.b3os.org/v1/usage', headers=headers)print(response.json())
200 Response
{  "object": "usage_summary",  "start": "2026-10-01T00:00:00.000Z",  "end": "2026-10-25T22:00:00.000Z",  "group_by": [    "product",    "unit"  ],  "rows": [    {      "product": "vision",      "unit": "vision.page",      "qty": 18204    },    {      "product": "sandboxes",      "unit": "sandboxes.vcpu_ms",      "qty": 9120330    },    {      "product": "infer",      "unit": "infer.output_tokens",      "qty": 4410920    }  ]}
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