`list_races`

Pack: us-race-matchups · 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/list_races for the schema, then POST the same URL with its arguments for the data.

Every federal race in a state for a cycle (the Senate seat if any, and each House district) with how many distinct people registered with the FEC and who the sitting officeholder is (incumbent; incumbent_note says when the seat is open and they are not a candidate). Use it to find the district number before calling race_matchup.

Parameters

Name	Type	Required	Description
`state`	string	yes	US state: postal code (“IA”) or full name.
`office`	string	no	Optional: “house” or “senate” to restrict.
`cycle`	number	no	Election year, even. Default 2026.

Example call

Arguments

{
  "state": "Iowa"
}

curl

curl -X POST https://gateway.pipeworx.io/us-race-matchups/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"list_races","arguments":{"state":"Iowa"}}}'

TypeScript (@pipeworx/sdk)

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

const result = await pipeworx.call('list_races', {
  "state": "Iowa"
});

Response shape

Field	Type	Description
`state`	string
`cycle`	number
`races_total`	number
`races`	array
`note`	string
`source`	string
`data_as_of`	string \| null
`data_as_of_note`	string

Full JSON Schema

{
  "type": "object",
  "properties": {
    "state": {
      "type": "string"
    },
    "cycle": {
      "type": "number"
    },
    "races_total": {
      "type": "number"
    },
    "races": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "office": {
            "type": "string"
          },
          "district": {
            "type": [
              "string",
              "null"
            ]
          },
          "candidates_registered": {
            "type": "number"
          },
          "incumbent": {
            "type": [
              "object",
              "null"
            ],
            "additionalProperties": true
          }
        },
        "additionalProperties": true
      }
    },
    "note": {
      "type": "string"
    },
    "source": {
      "type": "string"
    },
    "data_as_of": {
      "type": [
        "string",
        "null"
      ]
    },
    "data_as_of_note": {
      "type": "string"
    }
  },
  "additionalProperties": true
}

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 us-race-matchups pack

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

See Getting Started for client-specific install steps.

list_races