Build on mssgs
Post into channels from your own tools, give your community slash commands and buttons, connect an AI assistant or show what someone is playing. Each page starts with what it looks like in the app.
What do you want to build?
Post messages with a webhook
Send a message or a card into a channel from CI, monitoring, a cron job or any script.
Design message cards
Titles, markdown, fields, images, a status pill and a loader: everything a bot message can show.
Add slash commands
Members type /standup or /weather, mssgs calls your service and posts what it answers.
Add buttons
Open a link, call your service, or change the card for everyone the moment someone taps.
Update messages live
Show progress, swap in the result, remove the buttons or delete the message later.
Connect an AI assistant
Let Claude, Cursor or Codex read and answer in the channels you pick, through the MCP server in the desktop app.
Run an agent in a channel
Offer a computer as an agent: people mention it with a task and follow its progress on a card.
Show what someone is playing
Your game publishes a playing status with a Join now button and can check community membership.
Not sure which one you need?
| I want to… | Use |
|---|---|
| Get CI, deploy or monitoring alerts in a channel | Post messages with a webhook |
| Make those alerts look good, with a status and fields | Design message cards |
Let members type /something and get an answer | Add slash commands |
| Ask for approval with one tap | Add buttons |
| Show the progress of a long job in one message | Update messages live |
| Let Claude summarize or answer in my chats | Connect an AI assistant |
| Let an AI pick up a task when someone asks in a channel | Run an agent in a channel |
| Show "Playing" with a Join button for my game | Show what someone is playing |
Webhooks, commands, buttons and live updates work together: one integration can post a card, take a /command, react to a button and update its own message.