# BLNG Billing API

**Canonical:** https://apis.io/apis/blng/blng-billing-api/  
**Provider:** Blng — https://apis.io/providers/blng/  
**Base URL:** https://billing.blng.ai  
**Documentation:** https://billing.blng.ai/

BLNG Billing API is one of 14 APIs that [Blng](https://apis.io/providers/blng/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Billing, Payments, Stripe, and Subscription. The published artifact set on APIs.io includes an OpenAPI specification and an API reference.

REST API that manages BLNG payment and billing — listing Stripe products and prices, creating Stripe checkout sessions and customer-portal sessions, confirming checkout, and submitting enterprise "contact sales" inquiries. Also declares three Stripe webhook receivers for checkout completion and subscription update/delete. The product catalog endpoint answers unauthenticated.

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| POST | `/billing/requestEnterprise` | Submit an enterprise "Contact Sales" inquiry |
| GET | `/billing/products` | Retrieve available products and their prices |
| POST | `/billing/createCheckoutSession` | Create Stripe's checkout session (aka as payment link) |
| POST | `/billing/createCustomerPortal` | Create a link to customer's billing portal |
| POST | `/billing/confirmCheckout/{stripeCheckoutSessionId}` | Confirm Stripe Checkout Session |

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/blng/refs/heads/main/openapi/blng-billing-api-openapi.yml
- **APIReference** — https://billing.blng.ai/
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/blng/refs/heads/main/overlays/blng-billing-api-overlay.yaml

## Other Blng APIs (12)

- [BLNG User API](https://apis.io/apis/blng/blng-user-api/)
- [Blng Chat Prompts API](https://apis.io/apis/blng/blng-chat-prompts-api/)
- [Blng Composite API](https://apis.io/apis/blng/blng-composite-api/)
- [Blng Design Journey API](https://apis.io/apis/blng/blng-design-journey-api/)
- [Blng Invitation API](https://apis.io/apis/blng/blng-invitation-api/)
- [Blng Journeys API](https://apis.io/apis/blng/blng-journeys-api/)
- [Blng Organization API](https://apis.io/apis/blng/blng-organization-api/)
- [Blng Prompts API](https://apis.io/apis/blng/blng-prompts-api/)
- [Blng Subscription API](https://apis.io/apis/blng/blng-subscription-api/)
- [Blng User Subscription API](https://apis.io/apis/blng/blng-user-subscription-api/)
- [Blng User Tooltip API](https://apis.io/apis/blng/blng-user-tooltip-api/)
- [Blng Webhook API](https://apis.io/apis/blng/blng-webhook-api/)

## Tags

Billing, Payments, Stripe, Subscription

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/blng/blng-billing-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/blng/.