# Thing Identity

- [Quickstart](https://docs.thingidentity.com/quickstart.md): Create an API client, exchange it for a token and start using the API.
- [Authentication](https://docs.thingidentity.com/guides/authentication.md): Create an API client and exchange its credentials for a bearer token.
- [Introduction](https://docs.thingidentity.com/api-reference/introduction.md): Base URL, media types and status codes shared by every endpoint.
- [Error handling](https://docs.thingidentity.com/api-reference/errors.md): The envelope a failure comes back in.
- [Get an access token](https://docs.thingidentity.com/api-reference/endpoints/get-an-access-token.md): Exchanges the credentials of an API client for a bearer token using the OAuth 2.0 client credentials grant. There is no refresh token: when the access token expires, ask for another one.
- [Generate codes](https://docs.thingidentity.com/api-reference/endpoints/generate-codes.md): Takes a batch of code definitions and returns, for each one, the payload to encode in a symbol plus its human readable interpretation. Nothing is rendered as an image: you get the text and feed it to your own 2D barcode renderer.

## OpenAPI Specs

- [openapi](/openapi.json)

## Optional

- [Blog](https://thingidentity.com/blog)