wx-cli-wechat-local-data

name	wx-cli-wechat-local-data
description	Query and export local WeChat data (messages, contacts, moments, favorites) from the command line with daemon architecture
triggers	["how do I query my local WeChat messages","search my WeChat chat history","export WeChat conversations","get unread WeChat messages from CLI","access WeChat data locally","find WeChat messages by keyword","list WeChat contacts and groups","extract WeChat images and attachments"]

wx-cli: WeChat Local Data CLI

Skill by ara.so — Devtools Skills collection.

Query and export local WeChat data (messages, contacts, moments, favorites, public account articles) from the command line. Built in Rust with a daemon architecture that caches decrypted databases for millisecond-level responses.

What it does

wx-cli provides a command-line interface to your local WeChat data without network calls. It:

• Scans WeChat's memory to extract database encryption keys
• Maintains a background daemon that caches decrypted databases (reuses cache if mtime unchanged)
• Queries messages, contacts, groups, moments (SNS), favorites, and public account articles
• Extracts and decodes image attachments (.dat files)
• Returns structured JSON with metadata about data freshness

Key features:

• Zero-dependency single binary
• Fully local (no data leaves your machine)
• AI-friendly JSON output with meta wrapper for freshness/source info
• Supports incremental queries (new-messages returns only messages since last check)

Installation

npm (recommended, cross-platform):

npm install -g @jackwener/wx-cli

macOS / Linux (curl):

curl -fsSL https://raw.githubusercontent.com/jackwener/wx-cli/main/install.sh | bash

Windows (PowerShell as Administrator):

irm https://raw.githubusercontent.com/jackwener/wx-cli/main/install.ps1 | iex

Initial Setup

Keep WeChat running, then initialize (one-time):

macOS

Ad-hoc signing is required to scan WeChat's memory:

# 1. Sign WeChat (once per WeChat update)
codesign --force --deep --sign - /Applications/WeChat.app

# 2. Reset TCC privacy records (required after re-signing)
for s in ScreenCapture Camera Microphone AppleEvents AddressBook \
         SystemPolicyDocumentsFolder SystemPolicyDownloadsFolder SystemPolicyDesktopFolder; do
  tccutil reset "$s" com.tencent.xinWeChat
done

# 3. Restart WeChat and wait for full login
killall WeChat && open /Applications/WeChat.app

# 4. Initialize wx-cli
sudo wx init

If codesign reports signature in use:

codesign --remove-signature "/Applications/WeChat.app/Contents/Frameworks/vlc_plugins/librtp_mpeg4_plugin.dylib"
codesign --force --deep --sign - /Applications/WeChat.app

Linux

sudo wx init

Windows

Run PowerShell as Administrator:

wx init

Verify installation:

wx sessions

If you see recent sessions, setup is complete. The daemon starts automatically on first command.

Core Commands

Messages & Sessions

# Recent sessions (conversations)
wx sessions

# Unread sessions only
wx unread

# Filter unread (exclude official accounts and folded entries)
wx unread --filter private,group

# New messages since last check (incremental)
wx new-messages

# Chat history with a contact/group
wx history "张三"
wx history "张三" -n 2000                    # More messages
wx history "AI群" --since 2026-04-01 --until 2026-04-15

# Search across all messages
wx search "关键词"
wx search "关键词" -n 500                     # More results
wx search "会议" --in "工作群" --since 2026-01-01

JSON output structure:

// history, search, sessions, new-messages, stats, attachments
{
  "data": [...],
  "meta": {
    "status": "ok" | "possibly_stale" | "windowed",
    "unknown_shards": ["message_3.db"],  // If non-empty, run `wx init --force`
    "chat_latest_timestamp": "2026-05-16T12:34:56+08:00",
    "chat_latest_db": "message_2.db",
    "session_last_timestamp": "2026-05-16T14:20:00+08:00"
  }
}

Message fields:

{
  "time": "2026-05-16 10:23:45",
  "timestamp": 1715832225,
  "sender": "张三",
  "content": "消息内容",
  "type": "text",
  "chat_type": "private",
  "is_self": false
}

• chat_type: private | group | official_account | folded
• type: text | image | video | file | link | voice | system | etc.

Quoted messages: History/search output shows quoted replies with original context:

[引用] 当前回复
  ↳ 发送者: 被引用内容

Contacts & Groups

# List contacts
wx contacts
wx contacts --query "李"       # Search by name

# List group members (prioritizes group nicknames)
wx members "AI交流群"
wx members "AI交流群" --json   # JSON with username/display/group_nickname/is_owner

Member JSON structure:

{
  "username": "wxid_abc123",
  "display": "李四 (群昵称)",
  "contact_display": "李四",
  "group_nickname": "群昵称",
  "is_owner": false
}

Moments (SNS)

Three separate commands for notifications vs. posts:

# Like/comment notifications (unread by default)
wx sns-notifications
wx sns-notifications --include-read -n 100

# Moments timeline (your feed)
wx sns-feed
wx sns-feed --user "张三" -n 100
wx sns-feed --since 2026-04-01

# Search moments content
wx sns-search "关键词"
wx sns-search "婚礼" --user "李四" --since 2023-01-01

sns-notifications output:

{
  "type": "like" | "comment",
  "from_nickname": "张三",
  "content": "评论内容",
  "feed_preview": "原帖正文片段",
  "feed_author": "李四",
  "timestamp": 1715832225
}

sns-feed / sns-search output:

{
  "author": "张三",
  "content": "朋友圈正文",
  "media": [
    {
      "url": "...",
      "thumb": "...",
      "key": "...",
      "token": "...",
      "md5": "...",
      "enc_idx": 0,
      "size": 123456
    }
  ],
  "media_count": 1,
  "location": "北京",
  "timestamp": 1715832225
}

Public Account Articles

Official/subscription account articles are stored separately:

# Recent articles
wx biz-articles
wx biz-articles -n 200

# Filter by account name
wx biz-articles --account "返朴"

# Time range
wx biz-articles --since 2026-05-01 --until 2026-05-10

# Unread only (1 latest per account)
wx biz-articles --unread

# Extract URLs
wx biz-articles --json | jq '.[].url'

Output fields:

{
  "account": "返朴",
  "account_username": "gh_abc123",
  "title": "文章标题",
  "url": "https://mp.weixin.qq.com/...",
  "digest": "摘要",
  "cover_url": "...",
  "time": "2026-05-16 10:00:00",
  "timestamp": 1715832000,
  "recv_time_str": "2026-05-16 10:01:23"
}

Attachments (Images)

Image attachments are stored as .dat files that require decryption:

# 1. List image attachments in a conversation
wx attachments "张三"
wx attachments "AI群" --kind image -n 100
wx attachments "AI群" --since 2026-04-01 --until 2026-04-15

# 2. Extract a specific attachment by ID
wx extract <attachment_id> -o ~/Desktop/photo.jpg
wx extract <attachment_id> -o /tmp/x.jpg --overwrite

attachments output:

{
  "attachment_id": "opaque-id-123",
  "kind": "image",
  "type": 3,
  "local_id": 456,
  "timestamp": 1715832225,
  "time": "2026-05-16 10:23:45",
  "sender": "张三"
}

extract output:

{
  "md5": "abc123...",
  "dat_path": "/.../msg/attach/.../abc.dat",
  "dat_size": 123456,
  "output": "~/Desktop/photo.jpg",
  "output_size": 120000,
  "format": "jpg",
  "decoder": "v2"
}

Supported decoders:

• legacy_xor: Early single-byte XOR (no magic header)
• v1_aes: Fixed AES-128-ECB with hardcoded key
• v2: AES + XOR with platform-derived keys

Favorites & Statistics

# All favorites
wx favorites
wx favorites --type image      # Filter by type: text/image/article/card/video
wx favorites --since 2026-01-01

# Conversation statistics
wx stats "AI群"                # Message counts by sender (top 10)
wx stats "AI群" --top 20       # More senders

Export

# Export to text file
wx export "张三" -o chat.txt

# Export to JSON
wx export "AI群" -o chat.json --format json
wx export "AI群" -o chat.json --format json --since 2026-04-01

Configuration

Daemon Management

The daemon starts automatically on first command. Manual control:

# Check daemon status
wx status

# Stop daemon
wx stop

# Restart daemon
wx stop && wx sessions  # Any query command restarts it

# Force re-initialize (re-scan WeChat memory)
wx init --force

Environment Variables

wx-cli reads configuration from standard WeChat data paths. No env vars required for normal operation.

Logging:

# Enable debug logging (not typically needed)
RUST_LOG=debug wx history "张三"

Common Patterns

Monitor new messages in a script

#!/bin/bash
while true; do
  wx new-messages --json | jq -r '.data[] | "\(.time) \(.sender): \(.content)"'
  sleep 60
done

Export all conversations since date

for session in $(wx sessions --json | jq -r '.[].username'); do
  wx export "$session" -o "backup/${session}.json" --format json --since 2026-01-01
done

Search for keywords and extract context

wx search "项目" --json | jq -r '.data[] | "\(.time) [\(.sender)] \(.content)"'

Get unread count per conversation

wx unread --json | jq '.[] | "\(.unread_count)\t\(.remark)"'

Extract all images from a date range

# 1. Get attachment IDs
wx attachments "旅行群" --since 2026-05-01 --json | jq -r '.data[].attachment_id' > ids.txt

# 2. Extract each
mkdir -p images
while read id; do
  wx extract "$id" -o "images/${id}.jpg" 2>/dev/null
done < ids.txt

Check data freshness in automation

result=$(wx history "张三" --json)
status=$(echo "$result" | jq -r '.meta.status')

if [ "$status" != "ok" ]; then
  echo "Warning: Data may be stale. Unknown shards:"
  echo "$result" | jq '.meta.unknown_shards'
  echo "Run: wx init --force"
fi

Troubleshooting

macOS: "Operation not permitted"

# Re-sign WeChat
codesign --force --deep --sign - /Applications/WeChat.app

# Reset TCC and reinitialize
for s in ScreenCapture Camera Microphone AppleEvents; do
  tccutil reset "$s" com.tencent.xinWeChat
done
killall WeChat && open /Applications/WeChat.app
sudo wx init --force

macOS: "WeChat 想访问其他 App 的数据" popups

This is a known side effect of re-signing. The popup occurs because macOS treats the re-signed WeChat as a different app accessing its old container. Click "Allow" to proceed. To avoid popups, you'd need to use official WeChat signature (which requires SSH-free local Terminal with Developer Tools TCC access).

Windows: No decryption keys found

# Make sure WeChat is fully logged in
# Run as Administrator
wx init --force

"unknown_shards" in meta output

WeChat may have created new message_N.db shards since initialization:

wx init --force

Daemon not responding

wx stop
wx sessions  # Restarts daemon

Empty results but WeChat has data

# Force refresh all caches
wx init --force

# Check daemon status
wx status

Image extraction fails with "unsupported decoder"

On Linux, V2 image keys are not yet supported. Legacy XOR and V1 AES work. On macOS/Windows, ensure WeChat is running during wx init.

Advanced Usage

Custom limit for large queries

# Default limits are conservative to avoid overwhelming output
wx history "张三" -n 10000
wx search "keyword" -n 5000
wx sns-feed -n 500

Filter messages by type

# Links, files, merged chat records, quoted messages
wx history "AI群" --type link --json

# Images only
wx history "AI群" --type image --json

Include metadata in all outputs

# Human-readable warnings go to stderr
wx history "张三" 2>&1 | grep "WARNING"

# Machine-readable meta in JSON stdout
wx history "张三" --json | jq '.meta'

# Extended meta with per-shard details
wx history "张三" --with-meta --json | jq '.meta.per_shard_latest'

Export with custom time windows

wx export "项目群" -o q1-2026.json --format json \
  --since 2026-01-01 --until 2026-03-31

Integration with AI Agents

wx-cli is designed for AI agent consumption:

1. Install via skills:

   npx skills add jackwener/wx-cli
   

2. Structured output: All query commands return JSON with {data, meta} wrapper

3. Freshness indicators: meta.status tells agents if data may be stale

4. Incremental queries: new-messages returns only messages since last check

5. Error handling: Non-zero exit codes + stderr for errors; JSON always valid on stdout

Example agent prompt:

"Check my WeChat for any messages from 李四 in the last week mentioning '合同'"

Agent execution:

wx search "合同" --in "李四" --since $(date -d '7 days ago' +%Y-%m-%d) --json

Documentation

• GitHub: https://github.com/jackwener/wx-cli
• Installation: See install.sh / install.ps1 in repo
• macOS Permission Guide: docs/macos-permission-guide.md

License

Apache-2.0