posterly

MCP connector

WordPress MCP server

Publish posts to your self-hosted WordPress site from Claude or ChatGPT, with a featured image.

This is the posterly MCP server, used for WordPress. The same connection works from Claude, ChatGPT, Cursor, and other MCP clients. It is not a separate WordPress-only download.

Get Starter + API · $10/moHow to connect the MCP server

What you can do on WordPress

WordPress publishing works with any self-hosted site that has the REST API enabled, and it needs no plugin. You connect with your site URL, your username, and an application password generated in wp-admin under Users, Profile, Application Passwords.

Your AI client then publishes full posts with a title and a body that can hold 100,000 characters. Your first attached image is uploaded to your own site as the featured image, with its alt text, and extra images are added into the post body. If you do not set a title, the first line of the caption is used.

Posts publish live at the scheduled time, not as drafts, so it suits a content calendar you have already approved. Unlike Dev.to and Hashnode, there are no tag or cover settings here: the post lands on your own domain and your site controls categories and design. Video is not supported, and the MCP server does not read WordPress analytics.

  • Text posts
  • Images
  • Multi-image
  • Custom cover

Post types: text, image. Analytics are not read for this platform.

Tools

These are the tools your AI client uses for WordPress. Ask it to call list_platforms with view=schema and the account_id before it sets anything specific to WordPress.

Account and connection

  • whoamiWho am I

  • list_accountsConnected accounts

  • list_platformsPlatforms

  • create_connect_sessionStart a connect session

  • connect_accountConnect with credentials

Posts

  • validate_postValidate a post

  • create_postCreate a post

    Show the caption, account, and time, then wait for confirmation before confirm=true.

  • create_posts_batchCreate posts in bulk

    1 to 25 posts in one confirmed request.

  • update_postEdit a post

    Show the caption, account, and time, then wait for confirmation before confirm=true.

  • list_postsPosts

  • get_postOne post

  • delete_postDelete posts

    Live removal needs an eligible connection and confirm_published. A refusal keeps the posterly record.

  • find_available_slotFind a free slot

  • generate_captionsGenerate captions

Media

  • upload_mediaUpload media

    Hosted requests are about 4MB, so this path is for small files. Large files use create_signed_upload or create_media_drop.

  • create_signed_uploadSigned upload link

  • create_media_dropMedia drop link

  • list_mediaMedia library

How to connect

  1. Add the hosted server in Claude, ChatGPT, Cursor, or another MCP client. Server URL: https://www.poster.ly/api/mcp. Sign in with posterly OAuth and press Allow. Use the www host. In ChatGPT, write actions need a Business, Enterprise, or Edu plan.
  2. Or, in a client that can run a local process (Cursor, Claude Code, Windsurf, and similar), use npx -y posterly-mcp-server@latest with a POSTERLY_API_KEY placeholder in that client's MCP config.
  3. Call whoami and list_accounts so you know which workspace the client is using.
  4. Connect WordPress with the method below, then call list_platforms with view=schema and the account_id.

WordPress

Paste your credentials into the dashboard form. You can also give them to your AI client, but anything you type into a chat becomes part of that chat history.

  • Works with self-hosted WordPress sites that have the REST API enabled.
  • Site URL (required): Your WordPress site URL, e.g. https://blog.example.com.
  • Username (required): WordPress username the application password belongs to.
  • Application password (required): Generated in wp-admin under Users, Profile, Application Passwords.
Connect WordPress in the dashboard

Example prompts

  • Publish this article to our WordPress blog next Monday at 8am, with the hero image as the featured image.
  • Turn this transcript into a blog post with a clear title and schedule it to WordPress for Thursday.
  • Post the same announcement to WordPress and LinkedIn tomorrow, with a longer version for the blog.

WordPress limits

Caption or text
100,000 characters.

Request rates depend on your plan. The posterly MCP page lists them.

Pricing

API and MCP access is an add-on to any posterly plan. Starter plus API is $10 a month, charged now with no free trial on this checkout.

Get Starter + API · $10/moSee every plan

FAQ

What is the WordPress MCP server?

It is the posterly MCP server, not a separate product. Connect it once and the same connection covers WordPress and 17 other platforms, from Claude, ChatGPT, Cursor, and other MCP clients.

How do I connect WordPress?

Add the hosted server at https://www.poster.ly/api/mcp and sign in with posterly, or run npx -y posterly-mcp-server@latest in a client that can start a local process. WordPress: Paste your credentials into the dashboard form. You can also give them to your AI client, but anything you type into a chat becomes part of that chat history.

Do I need a plugin to connect WordPress?

No. posterly signs in with an application password that you generate under Users, Profile, Application Passwords in wp-admin. The site needs to be self-hosted with the REST API enabled.

Does the post publish live or save as a draft?

It publishes live at the scheduled time. If you want a human check first, ask Claude to show the full post and wait for your confirmation before it schedules anything.

Keep reading

MCP

posterly MCP server

Hosted OAuth setup, the local npm package, and the full tool list.

Scheduler

WordPress scheduler

Schedule WordPress from the posterly calendar and composer.

Guide

WordPress guide

Read the long WordPress guide, then come back to connect it.

Pricing

posterly pricing

Compare plans, then add API and MCP at checkout.

Other platform MCP servers