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DeepChat is an open-source, local-first AI desktop client that supports custom service providers compatible with OpenAI, Gemini, and Anthropic protocols. For HaiToken, the OpenAI path is usually the most stable and broadly compatible choice; if you explicitly want the Claude / Anthropic ecosystem, you can also use the Anthropic path.

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What you need

  • A HaiToken API key
  • HaiToken OpenAI-compatible address: https://api.haitoken.ai/v1
  • HaiToken Claude / Anthropic-compatible address: https://api.haitoken.ai
  • At least one available model ID, such as gpt-5.4
DeepChat is configured entirely through the GUI, so the steps are essentially the same on Windows, macOS, and Linux. If menu placement or dialog layout differs slightly on your system, follow the actual UI — the API key, API address, and model ID values remain the same.

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Setup Steps

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Choose the protocol first

In DeepChat, the two common choices are:
  • OpenAI / OpenAI Completions: recommended first, broader compatibility, and the main flow in this guide
  • Anthropic / Claude: also common, useful when you explicitly want the Claude / Messages ecosystem
If you do not have a strong reason, start with OpenAI.

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Step 1: Open Settings

In the DeepChat main interface, click the ... button at the bottom of the left sidebar to expand the menu, then select Settings.

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Step 2: Go to Provider Settings

On the Settings Overview page, find the Providers card and click it to open the provider settings page.

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Step 3: Add a Custom Provider

At the bottom of the provider list, click the + Add Custom Provider button.

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Step 4: Fill in HaiToken Configuration

In the dialog that appears, enter the following: After filling in the fields, make sure the Enable Provider toggle at the bottom is turned on, then click Confirm to save.
HaiToken supports both OpenAI Chat Completions and OpenAI Responses. If the API URL field shows a /responses suffix after you select an OpenAI option, the request will use POST /v1/responses, which is supported. Select OpenAI Completions only when you specifically want the Chat Completions path (POST /v1/chat/completions).
If you choose the Anthropic / Claude path, do not enter https://api.haitoken.ai/v1. This path should use the Anthropic-style gateway prefix https://api.haitoken.ai, and the client should call /v1/messages through that gateway.

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Step 5: Refresh and Enable Models

After saving, switch to the Models tab in the provider detail page and click Refresh Models to fetch the available HaiToken model list. Once loaded, click Enable All or selectively enable specific models.

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Step 6: Return to Chat and Test

Go back to the chat view, select the newly configured HaiToken model from the model picker at the bottom, and send a simple message (such as hello) to verify connectivity.

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Notes

If you need to configure advanced parameters such as temperature, max output length, or system prompt, keep the defaults for your first test and verify connectivity first.

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FAQ

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