# Basecamp Authorization API

**Canonical:** https://apis.io/apis/basecamp/basecamp-authorization-api/  
**Provider:** Basecamp — https://apis.io/providers/basecamp/  
**Base URL:** https://3.basecampapi.com  
**Documentation:** https://github.com/basecamp/bc3-api

Basecamp Authorization API is one of 20 APIs that [Basecamp](https://apis.io/providers/basecamp/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Authorization. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

OAuth 2.0 authorization code flow endpoints

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/basecamp/refs/heads/main/openapi/basecamp-authorization-api-openapi.yml
- **Documentation** — https://github.com/basecamp/bc3-api
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/basecamp/refs/heads/main/graphql/basecamp-graphql.md
- **Documentation** — https://github.com/basecamp/bc3-api/blob/master/sections/authentication.md

## Other Basecamp APIs (12)

- [Basecamp Webhooks](https://apis.io/apis/basecamp/basecamp-webhooks/)
- [Basecamp Campfires API](https://apis.io/apis/basecamp/basecamp-campfires-api/)
- [Basecamp Card Tables API](https://apis.io/apis/basecamp/basecamp-card-tables-api/)
- [Basecamp Comments API](https://apis.io/apis/basecamp/basecamp-comments-api/)
- [Basecamp Documents API](https://apis.io/apis/basecamp/basecamp-documents-api/)
- [Basecamp Identity API](https://apis.io/apis/basecamp/basecamp-identity-api/)
- [Basecamp Messages API](https://apis.io/apis/basecamp/basecamp-messages-api/)
- [Basecamp People API](https://apis.io/apis/basecamp/basecamp-people-api/)
- [Basecamp Projects API](https://apis.io/apis/basecamp/basecamp-projects-api/)
- [Basecamp Recordings API](https://apis.io/apis/basecamp/basecamp-recordings-api/)
- [Basecamp Schedule Entries API](https://apis.io/apis/basecamp/basecamp-schedule-entries-api/)
- [Basecamp Schedules API](https://apis.io/apis/basecamp/basecamp-schedules-api/)

## Tags

Authorization

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