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chatgpt-on-wechat/docs/en/channels/weixin.mdx
2026-03-22 18:20:10 +08:00

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---
title: WeChat
description: Connect CowAgent to personal WeChat
---
> Connect CowAgent to your personal WeChat. Simply scan a QR code to log in — no public IP required. Supports text, image, voice, file, and video messages.
## 1. Configuration
### Option A: Web Console
Start the program and open the Web console (local access: http://127.0.0.1:9899). Go to the **Channels** tab, click **Connect Channel**, select **WeChat**, and follow the prompts to scan the QR code.
### Option B: Config File
Set `channel_type` to `weixin` in your `config.json`:
```json
{
"channel_type": "weixin"
}
```
After starting the program, a QR code will be displayed in the terminal. Scan it with WeChat and confirm on your phone to complete login.
<Note>
For backward compatibility, setting `channel_type` to `wx` also activates the WeChat channel.
</Note>
## 2. Parameters
| Parameter | Description | Default |
| --- | --- | --- |
| `channel_type` | Set to `weixin` or `wx` | — |
Login credentials are automatically saved to `~/.weixin_cow_credentials.json`. To force a re-login, delete this file and restart.
## 3. Login
### QR Code Login
On first startup, a QR code is displayed in the terminal (valid for approximately 2 minutes). Scan it with WeChat and confirm on your phone.
- The QR code automatically refreshes when it expires
- The `qrcode` dependency is already included in `requirements.txt`, enabling QR code rendering directly in the terminal
### Credential Persistence
After successful login, credentials are saved to `~/.weixin_cow_credentials.json`. Subsequent startups will reuse the saved credentials without requiring a new scan.
To force a re-login, delete the credentials file and restart the program.
### Session Expiry
When the WeChat session expires (errcode -14), the program automatically clears old credentials and initiates a new QR login — no manual intervention required.
## 4. Supported Features
| Feature | Status |
| --- | --- |
| Direct Messages | ✅ |
| Text Messages | ✅ Send & Receive |
| Image Messages | ✅ Send & Receive |
| File Messages | ✅ Send & Receive |
| Video Messages | ✅ Send & Receive |
| Voice Messages | ✅ Receive |
## 5. Notes
1. Ensure network access to `ilinkai.weixin.qq.com`.
2. Media files (images, files, videos) are transferred via CDN with AES-128-ECB encryption, handled automatically by the program.
3. A stable network connection is recommended to avoid frequent disconnections that would require re-scanning.