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API Reference
Customer Meters

Retrieve a customer-meter aggregate

Returns a single customer-meter aggregate for the specified customer + meter pair. Returns 404 only if the meter itself does not exist on the merchant — if the meter exists but the customer has zero events, the response returns an aggregate with total_quantity: 0, event_count: 0, last_event_at: null.

GET/customer-meters/{customer_id}/{meter_id}

Returns a single customer-meter aggregate for the specified customer + meter pair. Returns 404 only if the meter itself does not exist on the merchant — if the meter exists but the customer has zero events, the response returns an aggregate with total_quantity: 0, event_count: 0, last_event_at: null.

Related endpoints

  • GET /customer-meters — List a customer's meter usage

Common errors

  • 401 authentication_error — missing, invalid, expired, or revoked credential. Codes: authentication_failed, invalid_api_key, expired_api_key, api_key_revoked, session_invalid, merchant_required. Carries a WWW-Authenticate: Bearer challenge.
  • 404 resource_missing — the referenced resource does not exist or is not visible to your key.

Authorization

x-api-key<token>

Your RevKeen merchant API key. Create and manage keys in Dashboard → Settings → Developer. Use rk_sandbox_* for staging/test and rk_live_* for production. The same key may be sent as Authorization: Bearer <key> if that suits your HTTP client better. A missing, invalid, expired, or revoked key returns 401 with a WWW-Authenticate: Bearer challenge; a valid key without the required scope returns 403.

In: header

Path Parameters

customer_id*string

Customer UUID

Formatuuid
meter_id*string

Meter UUID

Formatuuid

Response Body

application/json

application/json

application/json

application/json

Stuck on an error response? Ask the RevKeen assistant to explain it.
curl -X GET "https://api.revkeen.com/v2/customer-meters/11111111-1111-4111-8111-111111111111/11111111-1111-4111-8111-111111111111" \
  -H "x-api-key: $REVKEEN_API_KEY"

Synthetic documentation data, validated against the response schema; not a live API result.

{  "data": {    "object": "customer_meter",    "customer_id": "c2a1e7d4-5b3f-4a8e-9d21-6f0b3e4c7a11",    "meter_id": "7c8d9e0f-1a2b-4630-8d4e-5f6a7b8c9d01",    "meter_name": "API calls",    "meter_event_name": "api_call",    "aggregation": "count",    "unit_name": "calls",    "total_quantity": 4820,    "event_count": 4820,    "last_event_at": "2026-04-18T09:15:00.000Z"  }}

Put this endpoint to work

Configure usage billing