# Classic Auth API

**Canonical:** https://apis.io/apis/classic/classic-auth-api/  
**Provider:** Classic — https://apis.io/providers/classic/  
**Base URL:** https://api.shapeshift.com  
**Documentation:** https://api.shapeshift.com/docs

Classic Auth API is one of 5 APIs that [Classic](https://apis.io/providers/classic/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Authentication. The published artifact set on APIs.io includes an OpenAPI specification and an API reference.

The Auth API from Classic — 2 operation(s) for auth.

## Machine-readable artifacts (2)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/classic/refs/heads/main/openapi/classic-auth-api-openapi.yml
- **APIReference** — https://api.shapeshift.com/docs

## Other Classic APIs (4)

- [Classic Affiliate API](https://apis.io/apis/classic/classic-affiliate-api/)
- [Classic Supported Assets API](https://apis.io/apis/classic/classic-supported-assets-api/)
- [Classic Supported Chains API](https://apis.io/apis/classic/classic-supported-chains-api/)
- [Classic Swaps API](https://apis.io/apis/classic/classic-swaps-api/)

## Tags

Authentication

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