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FastSpring Sessions API

The Sessions API from FastSpring — 5 operation(s) for sessions.

FastSpring Sessions API is one of 12 APIs that FastSpring publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Sessions. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, authentication docs, and an AsyncAPI specification.

This API exposes 7 operations across 5 paths. It is described by OpenAPI 3.1.0, at version 1.0.0.

Requests are made against a single base URL, https://api.fastspring.com.

7 operations 5 paths 0 schemas 1 DELETE2 GET2 PATCH2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0.0
Base URL
https://api.fastspring.com
Authentication
HTTP Basic
Resource Areas
1

Authentication & Security 1

FastSpring Sessions API declares 1 security scheme for authenticating requests. It accepts HTTP basic authentication (BasicAuth). By default, every request must be authenticated.

  • BasicAuth — HTTP Basic with credentials from FastSpring App Dashboard

Paths & Operations 7

Across 5 paths, the API surfaces 7 operations — 1 DELETE, 2 GET, 2 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.

Sessions 7
POST
/sessions
Create a checkout session
body → 200
GET
/sessions/{session_id}
Retrieve a session
1 param → 200
PATCH
/sessions/{session_id}
Update a session
1 param body → 200
POST
/sessions/{session_id}/items
Add items to a session
1 param body → 200
PATCH
/sessions/{session_id}/items/{item_id}
Update a session item
2 params body → 200
DELETE
/sessions/{session_id}/items/{item_id}
Delete a session item
2 params → 200
GET
/sessions/{session_id}/payment-methods
Retrieve available payment methods for a session
1 param → 200

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fastspring-sessions-api-openapi.yml Raw ↑

Other APIs FastSpring publishes across the network.

FastSpring Accounts API
FastSpring Coupons API
FastSpring Data API
FastSpring Events API
FastSpring Invoices API
FastSpring Orders API
FastSpring Products API
FastSpring Quotes API
FastSpring Returns API
FastSpring Subscriptions API
FastSpring Webhooks API
Where this information came from

This is an independent, third-party profile of FastSpring Sessions API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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