# MultiGroupPoster documentation > Short, dated facts about MultiGroupPoster, a Chrome extension that posts one post to many Facebook groups from the user's own browser session. Updated 2026-10-28. MultiGroupPoster is a Chrome extension that posts one post to many Facebook groups from your own browser session. These pages hold the short, dated facts: prices and the free plan, daily limits, requirements, posting as a Page, comments, sharing, cancelling and refunds, troubleshooting, and how AI assistants connect through MCP. ## Pages (Markdown) - [Pricing and the free plan](https://multiplegroupposter.com/docs/pricing.md): MultiGroupPoster has a free plan with 6 posts, one time, and no card needed. One post to one group counts as one post. Pro Monthly is $9.99 a month and Pro Annual is $69.99 a year, both with unlimited posting. You install the extension free and upgrade from inside it. - [Limits](https://multiplegroupposter.com/docs/limits.md): MultiGroupPoster stops at 200 posts a day on every plan. By default it waits a random 3 to 6 minutes after every 1 to 3 posts, and the waits get longer as the day goes on. A post takes up to 10 photos or videos. These limits are built in to keep posting at a careful pace. - [Requirements](https://multiplegroupposter.com/docs/requirements.md): MultiGroupPoster is a Chrome extension, so it needs Chrome (or a browser that installs from the Chrome Web Store, such as Edge or Brave) on a Windows, Mac, Linux or ChromeOS computer. It does not work on phones, tablets, Firefox or Safari. You post from your own Facebook account, in groups you have joined. - [Posting as a Page](https://multiplegroupposter.com/docs/post-as-page.md): Pick a Page you manage under "Posting as" and the whole run posts as that Page. It only works in groups where the Page is a member and the group lets Pages post. A group that refuses the Page twice is left out for 60 days. The Page's own feed can be a target too. - [First comment and delayed comments](https://multiplegroupposter.com/docs/comments.md): MultiGroupPoster can add up to 3 comments under each group post, for a link, hashtags or a call to action. The first can go right after the post or later, up to 24 hours. It works with Fast and Safe. If the post waits for admin approval, the comments wait too, for up to about 2 days. - [Share to groups](https://multiplegroupposter.com/docs/sharing.md): MultiGroupPoster adds a Share to groups button next to Facebook's own Share under posts, Reels and videos. You pick group lists and it goes to each group in turn, either as a share of the original or as a new post of your own. The free plan includes 6 shares; Pro has no limit. - [Buy and sell groups](https://multiplegroupposter.com/docs/buy-and-sell.md): From a personal profile, Facebook buy and sell groups accept only listings (an item, a vehicle or a home for rent), not regular posts. MultiGroupPoster recognises those groups in your lists, fills a listing from your post and sends it to up to 20 of them, at most 3 listings a day. - [Cancel and refunds](https://multiplegroupposter.com/docs/cancel-and-refunds.md): To cancel, email support@multiplegroupposter.com from the address on your account; it is cancelled the same day and Pro stays on until the end of the paid period. A refund is available once per customer, within 7 days of the first payment, with no reason needed. Renewals are not refundable. - [Troubleshooting](https://multiplegroupposter.com/docs/troubleshooting.md): After each run MultiGroupPoster shows a result for every group with the reason when a post failed. The common causes are being signed out of Facebook, Facebook limiting how often you can post, a group that does not accept your posts, and a post waiting for an admin. Each has a clear next step below. - [MCP server for AI assistants](https://multiplegroupposter.com/docs/mcp.md): MultiGroupPoster has a remote MCP server at https://mcp.multiplegroupposter.com/mcp. An AI assistant connects with OAuth, then a code from the extension and a number match link it to one person's extension. The assistant can list group lists, prepare posts and follow results. Posting itself happens in that person's Chrome, through the extension. - [Frequently asked questions](https://multiplegroupposter.com/docs/faq.md): The short answers people ask for most: MultiGroupPoster costs $9.99 a month or $69.99 a year after 6 free posts, runs in Chrome on a computer, can post as a Page and add delayed comments, is cancelled by email, refunds once within 7 days, and connects to AI assistants through MCP. ## Machine-readable - [Docs index as JSON (all languages, pricing, limits, MCP)](https://multiplegroupposter.com/docs.json) - [Read-only info API (OpenAPI 3.1)](https://multiplegroupposter.com/openapi.json): https://multiplegroupposter.com/api/v1/pricing/, https://multiplegroupposter.com/api/v1/limits/, https://multiplegroupposter.com/api/v1/mcp/, https://multiplegroupposter.com/api/v1/docs/?q=refund - [MCP server](https://mcp.multiplegroupposter.com/mcp): Streamable HTTP, OAuth 2.1. How to authenticate: https://multiplegroupposter.com/auth.md - [MCP server in the official MCP Registry](https://registry.modelcontextprotocol.io/v0.1/servers/com.multiplegroupposter%2Fmultigroupposter/versions/latest): com.multiplegroupposter/multigroupposter - [Agentic Resource Discovery catalog](https://multiplegroupposter.com/.well-known/ard.json) ## Other languages - es: https://multiplegroupposter.com/es/docs/ (Markdown: https://multiplegroupposter.com/es/docs/.md) - pl: https://multiplegroupposter.com/pl/docs/ (Markdown: https://multiplegroupposter.com/pl/docs/.md) - pt: https://multiplegroupposter.com/pt/docs/ (Markdown: https://multiplegroupposter.com/pt/docs/.md) - fr: https://multiplegroupposter.com/fr/docs/ (Markdown: https://multiplegroupposter.com/fr/docs/.md) ## Optional - [Site-wide llms.txt](https://multiplegroupposter.com/llms.txt) - [Pricing llms.txt](https://multiplegroupposter.com/pricing/llms.txt) - [For AI agents (agents.md)](https://multiplegroupposter.com/agents.md) - [Full text for LLMs](https://multiplegroupposter.com/llms-full.txt)