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Wenyan MCP Server: Publish Markdown to WeChat Official Accounts

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Getnpm@wenyan-md/mcpcaol64/wenyan-mcp

Lets your assistant turn a Markdown article into a styled WeChat Official Account post and save it as a draft.

Wenyan MCP formats Markdown with one of the built-in themes (or your own CSS) and uploads the article, its images and its cover to the drafts folder of a WeChat Official Account (微信公众号). You then review and publish from the WeChat dashboard. It runs on your computer and needs your account's AppID and AppSecret. WeChat only accepts uploads from IP addresses on your account's allow-list, or you can send the upload through a Wenyan server you host.

Good for

  • Chinese-language writers who draft in Markdown and publish to a WeChat Official Account
  • Teams that want an AI agent to prepare WeChat posts without copy and paste
  • Developers who publish from a CI job or a fixed server

Works in

12 should work

Tap an app to see how to set it up and any known problems.

Install wenyan MCP

Claude Code

  1. 1

    Copy this prompt.

    Add the wenyan MCP server to Claude Code. Run this command:
    
    claude mcp add wenyan -e WECHAT_APP_ID=<WECHAT_APP_ID> -e WECHAT_APP_SECRET=<WECHAT_APP_SECRET> -- npx -y @wenyan-md/mcp
    
    Ask me for WECHAT_APP_ID, WECHAT_APP_SECRET and only put the values in that config, nowhere else.
    
    Then check that it loaded and tell me if I need to sign in or restart.
  2. 2

    Paste it into Claude Code. It shows the change and asks before running it.

Requires Node.js.

Built from the package data we hold. Not yet tested by us.

Tools

  • Formats a Markdown article and saves it to WeChat drafts

    Takes Markdown (pasted text, a local file path or a URL), applies a theme, uploads the images and cover, and creates a draft in your WeChat Official Account. It does not publish the post to readers. The AppID option works only when you run it against a Wenyan server.

    Try: “Publish ./posts/spring-reading.md to my WeChat account using the phycat theme.”

    Write · publish_article

  • Lists the built-in and custom article themes

    Returns the theme IDs you can use, with a short description of each, built-in themes first and then any custom themes you registered.

    Try: “Which WeChat themes can I use?”

    Read · list_themes

  • Adds a custom theme from a CSS file or URL

    Saves a new theme under a name you choose, using a CSS file on your computer or at a URL, so later articles can use it.

    Try: “Register https://example.com/manhua.css as a theme called manhua.”

    Write · register_theme

  • Removes a custom theme you added

    Removes a custom theme by name. It is meant for themes you registered yourself, not the built-in ones.

    Try: “Remove the custom theme called manhua.”

    Delete · remove_theme

Read from the source code

Permissions

medium risk · 4 things to watch

Medium risk

It can upload images and create drafts in your WeChat Official Account using your AppID and AppSecret, but it does not publish them to readers. Review each draft in WeChat and keep the secret out of shared files.

What it can do

  • Read your data
  • Create and change things
  • Delete things
  • Read-only mode

Watch out for

  • It writes to your WeChat account

    publish_article uploads images and creates drafts in your Official Account. Drafts are not published until you do that in WeChat, so check each one. github.com

  • Your AppSecret sits in the client config

    Anyone who can read the config file can use the secret. Keep it out of shared repos, and reset the secret in the WeChat dashboard if it leaks. github.com

  • It reads local files and fetches URLs you give it

    publish_article reads a Markdown file path or URL and uploads the images it references. Only point it at files you want published. github.com

  • remove_theme removes custom themes only

    Its description covers custom themes you registered. It does not touch your articles or drafts. github.com

Security advisories

No published security advisories as of Nov 1, 2026.

Technical details
Talks toWeChat Official Account API, or your own Wenyan server in server mode. URLs you give it for articles, images or theme CSS
Sign-in and keysAppID and AppSecret are passed as environment variables in your client's MCP config. In server mode you pass --server and --api-key instead.
Scopes
  • WeChat Official Account AppID and AppSecret

Questions

Is the Wenyan MCP server official?

No. It is made by the developer behind the Wenyan formatting tool (caol64 on GitHub), not by WeChat or Tencent.

What do I need before I can publish?

A WeChat Official Account with its AppID and AppSecret. Your computer's IP address must also be on the account's IP allow-list, or uploads fail.

What if my IP address keeps changing?

Run a Wenyan server on a machine with a fixed IP and point the MCP at it with the server and API key options. The README describes this as server mode, which also supports several accounts.

Does it publish posts to my readers?

No. It saves the article to your drafts folder. You review it and publish from the WeChat dashboard.

Which AI clients work with it?

Any client that can start a local program over stdio. The README shows Claude Desktop. Use the install box above for Claude Code, Cursor and others.

Can I run it without Node.js?

Yes. The README also offers a Docker image, caol64/wenyan-mcp. It needs your article folder mounted into the container and the same two WeChat variables.

Can I use my own theme?

Yes. Ask the assistant to register a CSS file or URL under a name, then use that name when publishing.

Information

updated Nov 2, 2026

Publisher
Community
Package
@wenyan-md/mcp
Registry
npm
Transport
stdio
Auth
token in env
Version
2.0.4
License
Apache-2.0
Last commit
Sep 20, 2026
Open issues
5

WebsiteGitHubnpmChangelogIssues

Sources

Docs, issue trackers and discussions this page is built from. Issues, quotes and findings above link to their own source.

Show all 4
  1. github.com · github.com
  2. github.com · github.com
  3. github.com · github.com
  4. github.com · github.com

Facts from the official MCP registry, GitHub, npm, PyPI and the Docker catalog. Updated Nov 2, 2026.