# check_in

**Check in at your location**

Check the user in at their CURRENT real-world location on Bonzai, Foursquare/Swarm-style — a 📍 real, disclosed place. Call this IMMEDIATELY with no arguments. Do NOT ask the user where they are, for an address, city, or coordinates, and do NOT try to pick a place yourself — the tool returns a one-tap link that captures the phone's GPS and shows nearby venues to choose from. Trigger whenever the user wants to share or record where they physically are: "check in", "check me in", "check in here", "I'm at <place>", "check in at ...". `caption` and `visibility` are OPTIONAL — omit them unless the user offered a note or audience. The link is single-use and expires in a few minutes.

- **Category:** Presence & places
- **Access:** mutating (changes state)
- **Renders a UI card:** yes
- **Returns:** A one-tap link that captures your phone location, plus a check-in card.

## Parameters

- `caption` (string, optional) — Optional note to attach to the check-in (≤280 chars), e.g. "corner booth, great espresso".
- `visibility` ("public" | "friends" | "private", optional) — Who can see this check-in. Defaults to friends.

## Connection

This is a tool on the Bonzai MCP server (`https://mcp.bonzai.me`). Connect any MCP
client and your agent calls it on your behalf. See https://bonzai.me/connect to connect, and
https://bonzai.me/docs for the full picture.

## Related recipes

- [The Postcard](https://bonzai.me/cookbook/the-postcard)

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Full tool reference: https://bonzai.me/docs/tools · AI overview: https://bonzai.me/llms.txt