# OAuth2 Token Exchange

**POST /adminczar/api/v1/oauth2/token**

Exchange client credentials for an access token using OAuth2 client credentials grant flow. **Note:** This endpoint is accessed at the admin server: `https://admin.pattern.com/adminczar/api/v1/oauth2/token`


## Servers
- Public API: https://api.useshelf.com (Public API)



## Parameters



### Body: application/json (object)

- **grant_type** (string)
  The grant type - must be "client_credentials"
- **client_id** (string)
  The client identifier issued to the client
- **client_secret** (string)
  The client secret issued to the client


## Responses
### 200
Access token issued successfully

#### Body: application/json (object)
- **access_token** (string)
  The access token to use for authenticated requests
- **token_type** (string)
  The token type (typically "Bearer")
- **expires_in** (integer)
  The lifetime of the access token in seconds

### 400
Invalid request parameters

#### Body: application/json (object)
- **error** (string)
  Error code
- **error_description** (string)
  Human-readable error description

### 401
Invalid client credentials

#### Body: application/json (object)
- **error** (string)
  Error code
- **error_description** (string)
  Human-readable error description


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