curl --request POST \
  --url https://api.rook.pm/v1/markets:compose \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "venue": "polymarket",
  "settlement_convention_id": "demo_all_legs_win_v1",
  "legs": [
    {
      "outcome_id": "out_fed_dec_2026_cut_yes"
    },
    {
      "outcome_id": "out_fed_dec_2026_hold_no"
    }
  ]
}
'

import requests

url = "https://api.rook.pm/v1/markets:compose"

payload = {
    "venue": "polymarket",
    "settlement_convention_id": "demo_all_legs_win_v1",
    "legs": [{ "outcome_id": "out_fed_dec_2026_cut_yes" }, { "outcome_id": "out_fed_dec_2026_hold_no" }]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    venue: 'polymarket',
    settlement_convention_id: 'demo_all_legs_win_v1',
    legs: [
      {outcome_id: 'out_fed_dec_2026_cut_yes'},
      {outcome_id: 'out_fed_dec_2026_hold_no'}
    ]
  })
};

fetch('https://api.rook.pm/v1/markets:compose', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "market": {
    "market_id": "mkt_combo_cut_and_no_hold",
    "version": "1",
    "title": "Fed cuts rates AND does not hold rates",
    "description": "Illustrative two-leg ticket. The second leg adds no condition when a cut already requires a change.",
    "event_ids": [],
    "family_ids": [
      "fam_fed_dec_2026"
    ],
    "category": "rates",
    "settlement_summary": "Pays 1 USDC if the policy rate is cut; the no-hold leg is automatically satisfied by a cut.",
    "payout_conditions": [
      "A cut pays YES 1 USDC.",
      "A hold or hike pays YES 0 USDC."
    ],
    "outcomes": [
      {
        "outcome_id": "out_combo_cut_and_no_hold_yes",
        "label": "YES",
        "listings": []
      },
      {
        "outcome_id": "out_combo_cut_and_no_hold_no",
        "label": "NO",
        "listings": []
      }
    ],
    "is_combo": true,
    "analytical_only": true,
    "observed_at": "2026-10-19T12:00:00Z",
    "legs": [
      {
        "outcome_id": "out_fed_dec_2026_cut_yes"
      },
      {
        "outcome_id": "out_fed_dec_2026_hold_no"
      }
    ],
    "settlement_convention_id": "demo_all_legs_win_v1"
  },
  "coverage": {
    "complete": true,
    "submitted_count": 2,
    "supported_count": 2,
    "items": [
      {
        "input_reference": "out_fed_dec_2026_cut_yes",
        "outcome_id": "out_fed_dec_2026_cut_yes",
        "status": "SUPPORTED",
        "family_ids": [
          "fam_fed_dec_2026"
        ]
      },
      {
        "input_reference": "out_fed_dec_2026_hold_no",
        "outcome_id": "out_fed_dec_2026_hold_no",
        "status": "SUPPORTED",
        "family_ids": [
          "fam_fed_dec_2026"
        ]
      }
    ]
  },
  "versions": {
    "market_versions": [
      {
        "market_id": "mkt_fed_dec_2026_cut",
        "version": "1"
      },
      {
        "market_id": "mkt_fed_dec_2026_hold",
        "version": "1"
      },
      {
        "market_id": "mkt_combo_cut_and_no_hold",
        "version": "1"
      }
    ],
    "mapping_version": "1",
    "scenario_pins": [
      {
        "family_id": "fam_fed_dec_2026",
        "scenario_version": "1"
      }
    ],
    "as_of": "2026-10-19T12:00:00Z"
  },
  "findings": [
    {
      "code": "REDUNDANT_LEG",
      "explanation": "If the Fed cuts rates, it cannot hold rates unchanged. The second leg does not change this ticket’s payout.",
      "leg_indices": [
        1
      ],
      "witnesses": [
        {
          "family_id": "fam_fed_dec_2026",
          "scenario_version": "1",
          "scenario_id": "scn_cut"
        }
      ]
    }
  ]
}