# Accela Authentication API (OAuth 2.0)

**Canonical:** https://apis.io/apis/accela/accela-authentication-api-oauth-20/  
**Provider:** Accela — https://apis.io/providers/accela/  
**Base URL:** https://auth.accela.com  
**Documentation:** https://developer.accela.com/docs/api_reference/api-auth.html

Accela Authentication API (OAuth 2.0) is one of 3 APIs that [Accela](https://apis.io/providers/accela/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Authentication, OAuth, and Government. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and authentication docs.

The Construct authorization server. Three operations — POST /oauth2/authorize (authorization code), POST /oauth2/token (authorization code, implicit and password-credential grants) and GET /oauth2/tokeninfo — issue and validate agency- and citizen-app access tokens bound to an agency, an environment and a set of Construct permission scopes.

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/accela/refs/heads/main/openapi/accela-authentication-openapi.yml
- **Documentation** — https://developer.accela.com/docs/construct-apiAuth.html
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/accela/refs/heads/main/authentication/accela-authentication.yml
- **OAuthScopes** — https://raw.githubusercontent.com/api-evangelist/accela/refs/heads/main/scopes/accela-scopes.yml

## Other Accela APIs (2)

- [Accela Construct API (V4)](https://apis.io/apis/accela/accela-construct-api-v4/)
- [CivicData Open Data API (CKAN) — END OF LIFE](https://apis.io/apis/accela/civicdata-open-data-api-ckan-end-of-life/)

## Tags

Authentication, OAuth, Government

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/accela/accela-authentication-api-oauth-20/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/accela/.