List customers | Respan Docs

curl -X POST "https://api.respan.ai/api/users/list/?page=1&page_size=50&sort_by=-total_cost&environment=prod" \
     -H "Authorization: Bearer <respanApiKey>" \
     -H "Content-Type: application/json" \
     -d '{
  "filters": {
    "total_cost": {
      "operator": "gte",
      "value": [
        10
      ]
    },
    "email": {
      "operator": "contains",
      "value": [
        "example.com"
      ]
    }
  }
}'

{
  "count": 51,
  "results": [
    {
      "id": "user_123prod8264a3f4-40c7-476a-97d1-96908127ea21",
      "customer_identifier": "user_123",
      "unique_organization_id": "8264a3f4-40c7-476a-97d1-96908127ea21",
      "environment": "prod",
      "name": "John Doe",
      "email": "john@example.com",
      "first_seen": "2025-10-15T08:00:00Z",
      "last_active_timeframe": "2025-12-29T10:30:00Z",
      "active_days": 75,
      "number_of_requests": 15420,
      "total_requests": 15420,
      "total_tokens": 170000,
      "tokens": 170000,
      "total_cost": 523.45,
      "cost": 523.45,
      "average_latency": 1.23,
      "average_ttft": 0.45,
      "average_monthly_cost": 6.98,
      "period_budget": 100,
      "budget_duration": "monthly",
      "total_budget": 1000
    }
  ],
  "next": "https://api.respan.ai/api/users/list/?page=2",
  "previous": null
}

Retrieve customers in your organization with analytics and budget fields. Available filter fields include customer_identifier, name, email, number_of_requests, total_tokens, total_cost, and active_days.

Authentication

AuthorizationBearer

Use your Respan API key for Respan API authentication. Enter only the Respan API key value; clients send Authorization: Bearer <RESPAN_API_KEY>. For /api/responses, provider credentials such as Perplexity, OpenAI, or Azure OpenAI go in Settings -> Providers or respan_params.credential_override in the request body, not in this authentication field.

AuthorizationBearer

Use a dashboard JWT only for dashboard-authenticated endpoints. Respan API-key endpoints use the respanApiKey auth field instead.

Query parameters

pageintegerOptionalDefaults to 1

Page number.

page_sizeintegerOptional<=1000Defaults to 50

Number of customers per page. Maximum is 1000.

sort_bystringOptionalDefaults to -first_seen

Sort field. Prefix with - for descending. Common values include customer_identifier, email, name, -first_seen, -number_of_requests, and -total_cost.

environmentenumOptional

Optional environment filter. If omitted, the backend uses the environment implied by your auth context when applicable.

Allowed values:

Request

This endpoint expects an object.

filtersobjectOptional

Filter criteria. See Filters API Reference for operator syntax.

Response

Paginated list of customers.

countinteger

Total number of matching customers.

resultslist of objects

Customers for the current page.

nextstring or nullOptional

Next page URL.

previousstring or nullOptional

Previous page URL.

Errors

400

Bad Request Error

401

Unauthorized Error

413

Content Too Large Error

429

Too Many Requests Error

500

Internal Server Error