Use DeepSeek Harness with FriendliAI

If you haven't already, install DeepSeek Harness.

If you need a new API key, create one.

1. In your terminal, run the following command:
   npx @deepseek-ai/dsh web
   
   DeepSeek Harness opens.
2. Open Settings. Then, click Models.
3. Click Add a custom provider. Then, connect DeepSeek Harness to FriendliAI:
   1. In Provider ID, enter friendliai.
   2. (Optional) In Display name, enter “FriendliAI”.
   3. In Base URL, paste the following FriendliAI base URL:
      https://api.friendli.ai/serverless/v1
      
   4. In API protocol, select openai-completions.
   5. In API key, paste your FriendliAI API key.
   6. Click Fetch available models. Then, click Add selected.
   7. Click Create provider.
4. When you’re ready to send a prompt, select a model. For example, select zai-org/GLM-5.3.

Open your agent and send a prompt. For example, use the following prompt:

To learn more, see DeepSeek Harness Docs > Use the Web UI.