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CometAPI provides two ways to check account balance and usage: the CometAPI CLI and the query service API at query.cometapi.com.

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CometAPI CLI

The fastest way to check your balance from the terminal. See CometAPI CLI overview for installation. 
cometapi balance
Add --source token for per-key details: 
cometapi balance --source token
See the commands reference for all available options.

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Query service API

GET https://query.cometapi.com/user/quota Returns account-level balance, cumulative usage, total request count, and per-key quota details. This endpoint uses a separate query service at query.cometapi.com and authenticates via the key query parameter rather than a Bearer Token.
Generate a dedicated API key for balance queries and set its quota to 0 (query-only permission). Even if the key is leaked, it cannot be used for model requests.

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Request parameters

ParameterTypeRequiredDescription
keystringYesYour CometAPI API key
start_datestringNoStart date for daily breakdown (YYYY-MM-DD format)
end_datestringNoEnd date for daily breakdown (YYYY-MM-DD format)
When start_date and end_date are provided, the response includes a daily_quota field with per-key usage broken down by day.

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Response fields

FieldTypeDescription
usernamestringUsername
total_quotanumberCurrent account balance (USD)
total_used_quotanumberCumulative usage (USD)
request_countintegerTotal request count
keysarrayPer-key quota details
keys[].namestringAPI key name
keys[].remain_quotanumberKey remaining quota; -1 means unlimited
keys[].used_quotanumberKey used quota; -1 means unlimited
daily_quotaobjectDaily usage breakdown (only when start_date and end_date are set)
daily_quota[date]arrayPer-key usage entries for that date
daily_quota[date][].token_namestringAPI key name
daily_quota[date][].quota_usednumberUsage for that key on that date (USD)
daily_quota[date][].request_countintegerRequest count for that key on that date

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Code examples

Query account balance: 
curl "https://query.cometapi.com/user/quota?key=$COMETAPI_KEY"

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Response example

{
  "username": "example_user",
  "total_quota": 2105.23,
  "total_used_quota": 21.07,
  "request_count": 1221,
  "keys": [
    {
      "name": "my-key",
      "remain_quota": 8.94,
      "used_quota": 2.10
    }
  ]
}

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Daily breakdown example

Query daily usage for a date range: 
curl "https://query.cometapi.com/user/quota?key=$COMETAPI_KEY&start_date=2026-04-13&end_date=2026-04-14"
The response includes the same top-level fields plus daily_quota: 
{
  "username": "example_user",
  "total_quota": 2105.23,
  "total_used_quota": 21.07,
  "request_count": 1221,
  "daily_quota": {
    "2026-04-13T00:00:00Z": [
      {
        "token_name": "my-key",
        "quota_used": 4.27,
        "request_count": 59
      }
    ],
    "2026-04-14T00:00:00Z": [
      {
        "token_name": "my-key",
        "quota_used": 0.57,
        "request_count": 36
      }
    ]
  }
}