Postman

Use Postman to validate the endpoint and request parameters before configuring another client.

Connection values

Create a POST request with this URL, headers, and JSON body:

POST https://cn.chatapi.app/v1/chat/completions
Authorization: Bearer sk-xxxxxxxx
Content-Type: application/json

{
  "model": "deepseek-v4-pro",
  "messages": [{"role": "user", "content": "Hello"}]
}

Verify the connection

Click Send. A 200 response containing choices confirms the connection.

Troubleshooting

• Store the key in a Postman Environment instead of a shared Collection.
• For streaming, add "stream": true to the JSON body.