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# Authentication

1. #### Create an account:

Go to the MediSync Developer Portal to register your application. You will receive a `client_id` and `client_secret`. You will need these for the next step.

2. #### Request a token:

MediSync uses OAuth 2.0 client credentials.

Use `POST /oauth/token` with your `client_id` and `client_secret` to obtain a bearer token. The request body must include a scope, which details the access levels for your application. For the purposes of this tutorial, the necessary scopes are `records:read`, `appointments:read`, `appointments:write`. You can see a detailed account of all different access levels in the *Scopes* section.

```
curl --location https://auth.medisync.io/oauth/token \
--header 'Content-Type: application/json' \
--data '{  
  "grant_type": "client_credentials",
  "client_id": "your_client_id",
  "client_secret": "your_client_secret",
  "scope": "records:read appointments:read appointments:write"
}'
```

Response:

```json
{
  "access_token": "eyJhbGci...",
  "token_type": "bearer",
  "expires_in": 3600,
  "scope": "records:read appointments:read appointments:write"
}
```

Do not log or expose the access token client-side. Tokens are valid for one hour.


---

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