# FastSpring Invoices API

**Canonical:** https://apis.io/apis/fastspring/fastspring-invoices-api/  
**Provider:** FastSpring — https://apis.io/providers/fastspring/  
**Base URL:** https://api.fastspring.com  
**Documentation:** https://developer.fastspring.com

FastSpring Invoices API is one of 12 APIs that [FastSpring](https://apis.io/providers/fastspring/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification. Tagged areas include Invoices. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, authentication docs, and an AsyncAPI specification.

The Invoices API from FastSpring — 2 operation(s) for invoices.

## Machine-readable artifacts (7)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/fastspring/refs/heads/main/openapi/fastspring-invoices-api-openapi.yml
- **Documentation** — https://developer.fastspring.com/reference
- **GettingStarted** — https://developer.fastspring.com/reference/getting-started-with-your-api
- **Authentication** — https://developer.fastspring.com/reference/authentication
- **Webhooks** — https://developer.fastspring.com/reference/webhooks
- **Message Security** — https://developer.fastspring.com/reference/message-security
- **AsyncAPI** — https://raw.githubusercontent.com/api-evangelist/fastspring/refs/heads/main/asyncapi/fastspring-asyncapi.yml

## Other FastSpring APIs (11)

- [FastSpring Accounts API](https://apis.io/apis/fastspring/fastspring-accounts-api/)
- [FastSpring Coupons API](https://apis.io/apis/fastspring/fastspring-coupons-api/)
- [FastSpring Data API](https://apis.io/apis/fastspring/fastspring-data-api/)
- [FastSpring Events API](https://apis.io/apis/fastspring/fastspring-events-api/)
- [FastSpring Orders API](https://apis.io/apis/fastspring/fastspring-orders-api/)
- [FastSpring Products API](https://apis.io/apis/fastspring/fastspring-products-api/)
- [FastSpring Quotes API](https://apis.io/apis/fastspring/fastspring-quotes-api/)
- [FastSpring Returns API](https://apis.io/apis/fastspring/fastspring-returns-api/)
- [FastSpring Sessions API](https://apis.io/apis/fastspring/fastspring-sessions-api/)
- [FastSpring Subscriptions API](https://apis.io/apis/fastspring/fastspring-subscriptions-api/)
- [FastSpring Webhooks API](https://apis.io/apis/fastspring/fastspring-webhooks-api/)

## Tags

Invoices

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