> For the complete documentation index, see [llms.txt](https://developer.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.collibra.com/api/references/oauth/models.md).

# Models

## The AccessTokenRequest object

```json
{"openapi":"3.0.3","info":{"title":"Collibra OAuth 2.0 Authorization API","version":"1.0.0"},"components":{"schemas":{"AccessTokenRequest":{"type":"object","description":"See [Section 4.4.2 of RFC 6749](https://datatracker.ietf.org/doc/html/rfc6749#section-4.4.2).","properties":{"grant_type":{"type":"string","description":"Type of authorization. The only supported grant type is `client_credentials`."}},"required":["grant_type"]}}}}
```

## The AccessTokenResponse object

```json
{"openapi":"3.0.3","info":{"title":"Collibra OAuth 2.0 Authorization API","version":"1.0.0"},"components":{"schemas":{"AccessTokenResponse":{"type":"object","description":"See [Section 5.1 of RFC 6749](https://datatracker.ietf.org/doc/html/rfc6749#section-5.1).","properties":{"access_token":{"type":"string","description":"The Base64 encoded access token."},"token_type":{"type":"string","description":"The type of access token returned. The only supported type is \"Bearer\"."},"scope":{"type":"string","description":"The scopes that have been granted for the client.\n\nThis field is omitted if the client did not request any specific scopes,\nin which case the default scopes for the client will have been granted.\n"},"expires_in":{"type":"integer","format":"int64","description":"The time in seconds until the access token is no longer valid."}}}}}}
```

## The OAuth2Error object

```json
{"openapi":"3.0.3","info":{"title":"Collibra OAuth 2.0 Authorization API","version":"1.0.0"},"components":{"schemas":{"OAuth2Error":{"type":"object","description":"See [Section 5.2 of RFC 6749](https://datatracker.ietf.org/doc/html/rfc6749#section-5.2)","properties":{"error":{"type":"string","description":"OAuth 2.0 error code defined in RFC 6749 Section 5.2."},"error_description":{"type":"string","description":"Human-readable description of the error."},"error_uri":{"type":"string","format":"uri","description":"A URI identifying a human-readable web page with information about the error."}}}}}}
```