`polymarket_us_price_history`

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_price_history for the schema, then POST the same URL with its arguments for the data.

How a Polymarket US market’s Yes/No display prices moved over time, as a timestamped series.

Tool description as the model sees it

Historical Yes/No display-price time series for one Polymarket US market by slug. interval picks a fixed lookback window (1h | 6h | 1d | 1w | 1m | all); fidelity is the spacing between points in minutes (default 60). Returns an array of {timestamp, yes_price, no_price} — these are DISPLAY prices (yes normally derived from the best ask, no from one minus the best bid) and preserve the bid/ask spread, so yes_price + no_price can exceed 1.0 — that is not a data error. Get a slug from polymarket_us_search.

Parameters

Name	Type	Required	Description
`slug`	string	yes	Polymarket US market slug, from polymarket_us_search.
`interval`	string	no	1h \| 6h \| 1d \| 1w \| 1m \| all (default 1d)
`fidelity`	number	no	Minutes between data points, minimum 1 (default 60).

Example call

Arguments

{
  "slug": "rvcus-fedfnds-ondt-2027-12-31-gte3pt25",
  "interval": "1d",
  "fidelity": 60
}

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_price_history","arguments":{"slug":"rvcus-fedfnds-ondt-2027-12-31-gte3pt25","interval":"1d","fidelity":60}}}'

TypeScript (@pipeworx/sdk)

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

const result = await pipeworx.call('polymarket_us_price_history', {
  "slug": "rvcus-fedfnds-ondt-2027-12-31-gte3pt25",
  "interval": "1d",
  "fidelity": 60
});

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_price_history