# FilingSift Billing API

**Canonical:** https://apis.io/apis/filingsift/filingsift-billing-api/  
**Provider:** FilingSift — https://apis.io/providers/filingsift/  
**Base URL:** https://api.filingsift.com/api/v1  
**Documentation:** https://filingsift.com/api/

FilingSift Billing API is one of 17 APIs that [FilingSift](https://apis.io/providers/filingsift/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Billing. The published artifact set on APIs.io includes an OpenAPI specification.

Runtime plan catalog and provider-controlled checkout availability

## Operations (8)

| Method | Path | Summary |
|---|---|---|
| GET | `/billing/catalog` | Get plans and self-service billing availability |
| POST | `/billing/webhooks/provider` | Receive a signed event from the configured billing provider |
| GET | `/account/billing` | Get entitlement, runtime catalog, subscription state, and invoices |
| GET | `/account/billing/invoices` | List bounded provider-hosted invoice and receipt metadata |
| POST | `/account/billing/checkout` | Create hosted checkout for an available paid plan |
| PATCH | `/account/billing/seats` | Update seats within the plan/member bounds with immediate Stripe proration |
| POST | `/account/billing/portal` | Create a provider-hosted customer portal session |
| POST | `/account/billing/cancel` | Request subscription cancellation now or at period end |

## Machine-readable artifacts (1)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/filingsift/refs/heads/main/openapi/filingsift-billing-api-openapi.yml

## Other FilingSift APIs (12)

- [FilingSift Accounts API](https://apis.io/apis/filingsift/filingsift-accounts-api/)
- [FilingSift Administration API](https://apis.io/apis/filingsift/filingsift-administration-api/)
- [FilingSift Analyst API](https://apis.io/apis/filingsift/filingsift-analyst-api/)
- [FilingSift Contract API](https://apis.io/apis/filingsift/filingsift-contract-api/)
- [FilingSift Corporate Events API](https://apis.io/apis/filingsift/filingsift-corporate-events-api/)
- [FilingSift Developer API](https://apis.io/apis/filingsift/filingsift-developer-api/)
- [FilingSift Filings API](https://apis.io/apis/filingsift/filingsift-filings-api/)
- [FilingSift Intake API](https://apis.io/apis/filingsift/filingsift-intake-api/)
- [FilingSift Integrations API](https://apis.io/apis/filingsift/filingsift-integrations-api/)
- [FilingSift Intelligence API](https://apis.io/apis/filingsift/filingsift-intelligence-api/)
- [FilingSift Pilots API](https://apis.io/apis/filingsift/filingsift-pilots-api/)
- [FilingSift Reference API](https://apis.io/apis/filingsift/filingsift-reference-api/)

## Tags

Billing

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