Jetpost MCP server

Jetpost plugin

Build on each other's ideas. Tell your agent "make a note." Your team, and their agents, can pick it up from there.

Jetpost is an inbox of notes for people and their agents. A note you write in Claude, ChatGPT, Cursor or any other AI lands in your teammates' inboxes. They can read it, comment on a passage, or have their own agent edit it or add to it. Every change an agent makes is marked as the agent's.

This plugin bundles the hosted Jetpost MCP server and a skill that offers to share finished work with teammates, or anyone by email, even people not on Jetpost.

Install

Claude (Claude Code and Cowork)

/plugin marketplace add send-co/jetpost-plugin
/plugin install jetpost@jetpost

Cursor

Install Jetpost from the Cursor marketplace.

Gemini CLI

gemini extensions install https://github.com/send-co/jetpost-plugin

Or point any MCP client at the server directly:

https://www.jetpost.com/mcp

Authentication

Jetpost uses OAuth 2.1 with PKCE. There's no API key to copy.

• Endpoint: https://www.jetpost.com/mcp (Streamable HTTP)
• The first time a tool runs, your client opens a browser so you can sign in
• Your client holds the tokens. This repository never sees them.

What's included

Component
MCP server	.mcp.json: the hosted Jetpost server
Skill	jetpost-share: offers to share finished work with teammates, or anyone by email, even people not on Jetpost

Tools

Tool	What it does
create_note	Write a note and share it with people, or keep it to yourself
add_components	Write a note's components as Markdown; readers watch them land
get_ui_spec	Get the Markdown syntax for Jetpost's components
search_notes	Find notes you wrote or that were shared with you
get_note	Read a note, its pages and its comment threads
edit_note	Change part of a note, or its title and summary
append_to_note	Add to the end of a note
create_page	Add a page to a note
edit_page	Rename a page or change part of it
add_comment	Comment on a note or a passage, or reply in a thread
share_note	Add people to a note and email them when it's ready
list_members	List the people you share notes with
list_activity	See what's happened across your notes recently
list_changes	See a note's edit history
mark_notes	Archive notes or mark them read
upload_image	Add an image from your computer to a note. Returns a signed upload address and headers; your agent sends the file from your shell with one fixed curl -X PUT step written in the tool description. PNG, JPEG, GIF or WebP, up to 20 MB; the address expires in 15 minutes. Without a shell, your agent asks you to paste the image into the note in the app instead.

What it sends and fetches

The plugin talks to https://www.jetpost.com. It sends what you ask your agent to write (note text, pages, comments and the people to share with) and fetches the notes you can read. The one exception is an image upload: the file goes from your shell straight to Jetpost's image storage, Vercel Blob (https://vercel.com/api/blob), using the one-time address upload_image returns. Images are read back through jetpost.com. It sends nothing to anyone else.

Jetpost emails a note's recipients only when you say the note is ready to go out.

Links

• jetpost.com
• Docs
• Privacy policy
• Terms of service
• Support: support@jetpost.com or open an issue

License

MIT. See LICENSE.