B

Basecamp API

REST discovered

Details
URL
https://3.basecampapi.com/{account_id}
Docs
https://github.com/basecamp/bc-api
Authentication
Basecamp OAuth application (client ID and client secret) oauth2 discovered Set up OAuth ↗
Authorization: Bearer <credential>

Sign in to Basecamp Launchpad Integrations, create a new integration/application, and copy the issued client_id and client_secret. Use that app to run the standard Basecamp OAuth flow and obtain user access tokens for the API.