Obtain access token

OAuth 2.0 token endpoint supporting client credentials and refresh token grant types.

Use this endpoint to obtain an access token that can be used to authenticate requests to other API endpoints. The token should be included in the Authorization header as a Bearer token.

Supported Content Types:

• application/x-www-form-urlencoded (standard OAuth 2.0)
• application/json

Grant Types:

• client_credentials: Use client ID and secret to obtain an access token
• refresh_token: Use a refresh token to obtain a new access token

curl -X POST "https://breb-participant.cert.monoban.co/api/v1/oauth/token" \  -H "Content-Type: application/json" \  -d '{    "client_id": "your_client_id",    "client_secret": "your_client_secret",    "grant_type": "client_credentials",    "scope": "example example:readonly"  }'

{
  "access_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...",
  "expires_in": 3600,
  "refresh_token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9refresh...",
  "scope": "example example:readonly",
  "token_type": "Bearer"
}

{
  "error": "unsupported_grant_type",
  "error_description": "The grant_type must be 'client_credentials' or 'refresh_token'"
}

{
  "error": "invalid_client",
  "error_description": "Client authentication failed"
}