curl --request GET \
  --url https://api.routeur.app/v1/markets/{venue}/{id}/rules \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.routeur.app/v1/markets/{venue}/{id}/rules"

headers = {"X-API-Key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api.routeur.app/v1/markets/{venue}/{id}/rules', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.routeur.app/v1/markets/{venue}/{id}/rules"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-API-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "data": {
    "venue": "kalshi",
    "id": "KXCPI-26SEP-T3.0",
    "title": "CPI above 3.0% in September?",
    "rules_hash": "6d1f0a4c2e8b9f70c13a5e7d2b4c6a8e0f1d3c5b7a9e1f3d5c7b9a1e3f5d7c9b",
    "rules": "If the CPI for September 2026 is above 3.0%, then the market resolves to Yes.\n\nThe Source Agency is the Bureau of Labor Statistics.",
    "rulebooks": [
      {
        "venue": "kalshi",
        "kind": "series",
        "id": "KXCPI",
        "content_hash": "2c9e7a1d4b6f8e0c1a3d5f7b9e1c3a5d7f9b1e3c5a7d9f1b3e5c7a9d1f3b5e7c",
        "first_seen_at": "2026-09-14T12:00:00Z",
        "last_seen_at": "2026-09-17T09:00:00Z",
        "fields": {
          "contract_terms_url": "https://assets.kalshi.com/contract_terms/KXCPI.pdf",
          "contract_url": "https://assets.kalshi.com/regulatory/product-certifications/KXCPI.pdf",
          "settlement_sources": [
            {
              "name": "Bureau of Labor Statistics",
              "url": "https://www.bls.gov/cpi/"
            }
          ],
          "additional_prohibitions": [
            "Persons who are employed by any of the Source Agencies are not permitted to trade on the Contract."
          ],
          "product_metadata": {}
        },
        "settlement_sources": [
          {
            "name": "Bureau of Labor Statistics",
            "url": "https://www.bls.gov/cpi/"
          }
        ],
        "source_url": "https://assets.kalshi.com/contract_terms/KXCPI.pdf",
        "document": {
          "url": "https://assets.kalshi.com/contract_terms/KXCPI.pdf",
          "content_hash": "9b1d3f5a7c9e1b3d5f7a9c1e3b5d7f9a1c3e5b7d9f1a3c5e7b9d1f3a5c7e9b1d",
          "text": "KXCPI\nScope: These rules shall apply to this contract.\nUnderlying: The Consumer Price Index for All Urban Consumers...",
          "fetched_at": "2026-09-17T03:10:00Z"
        },
        "changed_fields": []
      },
      {
        "venue": "kalshi",
        "kind": "event",
        "id": "KXCPI-26SEP",
        "content_hash": "4e6a8c0e2a4c6e8a0c2e4a6c8e0a2c4e6a8c0e2a4c6e8a0c2e4a6c8e0a2c4e6a",
        "first_seen_at": "2026-09-14T12:00:00Z",
        "last_seen_at": "2026-09-17T09:00:00Z",
        "fields": {
          "mutually_exclusive": true,
          "settlement_sources": [
            {
              "name": "Bureau of Labor Statistics",
              "url": "https://www.bls.gov/cpi/"
            }
          ],
          "strike_date": "2026-10-14T12:30:00Z",
          "strike_period": "",
          "collateral_return_type": "MECNET"
        },
        "settlement_sources": [
          {
            "name": "Bureau of Labor Statistics",
            "url": "https://www.bls.gov/cpi/"
          }
        ],
        "changed_fields": []
      }
    ],
    "versions": [
      {
        "rules_hash": "1a3c5e7b9d1f3a5c7e9b1d3f5a7c9e1b3d5f7a9c1e3b5d7f9a1c3e5b7d9f1a3c",
        "first_seen_at": "2026-09-14T12:00:00Z",
        "last_seen_at": "2026-09-15T18:00:00Z",
        "changed_fields": [],
        "rulebooks_changed": []
      },
      {
        "rules_hash": "6d1f0a4c2e8b9f70c13a5e7d2b4c6a8e0f1d3c5b7a9e1f3d5c7b9a1e3f5d7c9b",
        "first_seen_at": "2026-09-15T19:00:00Z",
        "last_seen_at": "2026-09-17T09:00:00Z",
        "changed_fields": [
          "rules"
        ],
        "summary": "Rules text changed (+1 −1 lines).",
        "diff": "--- rules@1a3c5e7b9d1f\n+++ rules@6d1f0a4c2e8b\n@@ -1,3 +1,3 @@\n-If the CPI for September 2026 is above 3.0%, then the market resolves to Yes.\n+If the CPI for September 2026 is above 3.0%, then the market resolves to Yes.\n \n The Source Agency is the Bureau of Labor Statistics.\n",
        "rulebooks_changed": []
      }
    ],
    "changes": [
      {
        "scope": "contract",
        "from_hash": "1a3c5e7b9d1f3a5c7e9b1d3f5a7c9e1b3d5f7a9c1e3b5d7f9a1c3e5b7d9f1a3c",
        "to_hash": "6d1f0a4c2e8b9f70c13a5e7d2b4c6a8e0f1d3c5b7a9e1f3d5c7b9a1e3f5d7c9b",
        "changed_at": "2026-09-15T19:00:00Z",
        "changed_fields": [
          "rules"
        ],
        "summary": "Rules text changed (+1 −1 lines)."
      }
    ]
  }
}

{
  "error": {
    "code": "invalid_parameter",
    "message": "Invalid or unsupported query parameter: limit."
  }
}

{
  "error": {
    "code": "api_key_required",
    "message": "Send an API key in the X-API-Key header or as a Bearer token."
  }
}