FastSpring

FastSpring API

REST API for FastSpring's ecommerce platform covering orders, subscriptions, products, coupons, customers, sessions, returns, and webhooks. Authenticated using HTTP Basic credentials issued in the FastSpring App Dashboard under Integrations > API Credentials, with HMAC SHA-256 signing available to verify webhook payloads.

GitHub OpenAPI

Documentation

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Documentation
https://developer.fastspring.com/reference
📖
GettingStarted
https://developer.fastspring.com/reference/getting-started-with-your-api
📖
Authentication
https://developer.fastspring.com/reference/authentication

Specifications

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OpenAPI
https://raw.githubusercontent.com/api-evangelist/fastspring/refs/heads/main/openapi/fastspring-openapi.yml
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AsyncAPI
https://raw.githubusercontent.com/api-evangelist/fastspring/refs/heads/main/asyncapi/fastspring-asyncapi.yml

Other Resources

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Webhooks
https://developer.fastspring.com/reference/webhooks
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Message Security
https://developer.fastspring.com/reference/message-security

OpenAPI Specification

fastspring-openapi.yml Raw ↑