Know your API allowance
Live quota information for people managing AUN integrations. Free beta until 20 April 2027, subject to limits. No purchased credits, payments or automatic charges.
Check usage
The shared anonymous allowance belongs to all anonymous callers, not to you individually. To check your credential, enter its API key below.
No request made yet. Enter a key or check the shared anonymous pool.
- Allowance this period
- Units used
- Available to this credential or pool
- Period resets
- Shared global units remaining
- Global period resets
- Last checked on this device
Availability is a snapshot, not a reservation. Parent delegation limits, shared global capacity and request throttles may restrict a call sooner. This endpoint does not expose credential expiry, permissions or per-service history.
What is an API unit?
A unit is an AUN usage allowance, not money and not an AI model token. Reading usage consumes no API units, but request throttles apply. Admitted executions can consume units even if an upstream provider fails or a result is partial.
| Service | Units per execution |
|---|---|
| DOI metadata | 1 |
| DNS snapshot | 5 |
| JSON, hash or text utility | 1 |
| Bibliography check | 1 per citation (1–5) |
Anonymous: 100 shared units per UTC day. Standard free key: 1,000 per UTC calendar month; delegated keys may have lower limits. All callers also share a 10,000-unit monthly global budget. Live values above take precedence over these standard examples.