Remove item from subscription
Remove a line item from a subscription. Cannot remove the last item - cancel the subscription instead. --- **Related endpoints** - `POST /subscriptions` — Create a new subscription - `GET /subscriptions` — List subscriptions - `GET /subscriptions/{id}` — Get subscription by ID - `PATCH /subscriptions/{id}` — Update subscription details - `DELETE /subscriptions/{id}` — Delete subscription - `POST /subscriptions/{id}/change-plan` — Change subscription plan - `POST /subscriptions/{id}/change-quantity` — Change subscription quantity - `POST /subscriptions/{id}/preview-renewal` — Preview subscription renewal **Common errors** - `400 invalid_request` — malformed payload or failed validation. - `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. **Idempotency** Pass an `Idempotency-Key` header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see [the idempotency guide](/docs/fundamentals/idempotency).
Remove a line item from a subscription. Cannot remove the last item - cancel the subscription instead.
Related endpoints
POST /subscriptions— Create a new subscriptionGET /subscriptions— List subscriptionsGET /subscriptions/{id}— Get subscription by IDPATCH /subscriptions/{id}— Update subscription detailsDELETE /subscriptions/{id}— Delete subscriptionPOST /subscriptions/{id}/change-plan— Change subscription planPOST /subscriptions/{id}/change-quantity— Change subscription quantityPOST /subscriptions/{id}/preview-renewal— Preview subscription renewal
Common errors
400 invalid_request— malformed payload or failed validation.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 aWWW-Authenticate: Bearerchallenge.404 resource_missing— the referenced resource does not exist or is not visible to your key.
Idempotency
Pass an Idempotency-Key header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see the idempotency guide.
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
Subscription UUID
uuidItem UUID
uuidResponse Body
application/json
application/json
application/json
application/json
application/json
curl -X DELETE "https://api.revkeen.com/v2/subscriptions/00000000-0000-0000-0000-000000000000/items/00000000-0000-0000-0000-000000000000" \
-H "x-api-key: $REVKEEN_API_KEY"{ "success": true, "deleted_id": "b2ea24e8-8a1f-4fd3-b024-1aa9f88f8b77"}Add item to subscription POST
Add a new line item to an existing subscription. This is used for multi-product subscriptions where items share the same billing interval. --- **Related endpoints** - `POST /subscriptions` — Create a new subscription - `GET /subscriptions` — List subscriptions - `GET /subscriptions/{id}` — Get subscription by ID - `PATCH /subscriptions/{id}` — Update subscription details - `DELETE /subscriptions/{id}` — Delete subscription - `POST /subscriptions/{id}/change-plan` — Change subscription plan - `POST /subscriptions/{id}/change-quantity` — Change subscription quantity - `POST /subscriptions/{id}/preview-renewal` — Preview subscription renewal **Common errors** - `400 invalid_request` — malformed payload or failed validation. - `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. **Idempotency** Pass an `Idempotency-Key` header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see [the idempotency guide](/docs/fundamentals/idempotency).
Ensure standard platform-fee items POST
Internal bounded repair. Financial fields are resolved from the seller-tenant catalog; the caller supplies only the fee effective timestamp. --- **Related endpoints** - `POST /subscriptions` — Create a new subscription - `GET /subscriptions` — List subscriptions - `GET /subscriptions/{id}` — Get subscription by ID - `PATCH /subscriptions/{id}` — Update subscription details - `DELETE /subscriptions/{id}` — Delete subscription - `POST /subscriptions/{id}/change-plan` — Change subscription plan - `POST /subscriptions/{id}/change-quantity` — Change subscription quantity - `POST /subscriptions/{id}/preview-renewal` — Preview subscription renewal **Common errors** - `400 invalid_request` — malformed payload or failed validation. - `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. **Idempotency** Pass an `Idempotency-Key` header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see [the idempotency guide](/docs/fundamentals/idempotency).