# express_interest

**Express interest in a listing**

Let a seller know the user is interested in one of their for-sale items (from a `find_for_sale` result). This does NOT buy anything and never handles payment — it puts the two people in touch so they can arrange the deal themselves. Pass an optional `message` to the seller. Say plainly that Bonzai connects buyer and seller only.

- **Category:** Marketplace
- **Access:** mutating (changes state)
- **Renders a UI card:** no
- **Returns:** Confirmation the seller was told you are interested, and how to connect.

## Parameters

- `listingId` (string, required) — The id of the listing to express interest in (from a find_for_sale result).
- `message` (string, optional) — Optional note to the seller, e.g. "is this still available? would you do $550?".

## 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 Bargain Hunter](https://bonzai.me/cookbook/the-bargain-hunter)

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