`polymarket_us_bbo`

Pack: polymarket-us · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/polymarket_us_bbo for the schema, then POST the same URL with its arguments for the data.

The best bid and ask for one Polymarket US market, with top-of-book depth and state.

Tool description as the model sees it

Best bid/offer (lightweight top-of-book) for one Polymarket US market by slug — current price, last trade price, best bid, best ask, bid/ask depth (number of price levels), open interest, shares traded, and market state. Use before quoting a price when you need just the top of book, not the full depth ladder (for that, see polymarket_us_book). Get a slug from polymarket_us_search.

Parameters

Name	Type	Required	Description
`slug`	string	yes	Polymarket US market slug (e.g. “aec-nfl-lac-ten-2025-11-02”), from polymarket_us_search.

Example call

Arguments

{
  "slug": "rvcus-fedfnds-ondt-2027-12-31-gte3pt25"
}

curl

curl -X POST https://gateway.pipeworx.io/polymarket-us/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"polymarket_us_bbo","arguments":{"slug":"rvcus-fedfnds-ondt-2027-12-31-gte3pt25"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('polymarket_us_bbo', {
  "slug": "rvcus-fedfnds-ondt-2027-12-31-gte3pt25"
});

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the polymarket-us pack

{
  "mcpServers": {
    "polymarket-us": {
      "url": "https://gateway.pipeworx.io/polymarket-us/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

polymarket_us_bbo