curl --request PATCH \
  --url https://x.invalid/api/v1/tilts/{tilt_uuid} \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "base_revision": "2026-09-29T14:32:10Z",
  "assignment_expression": "quality = 2 * revenue_growth_3y + roe",
  "filter_expression": "market_cap > 5000 and fcf_margin > 0.08",
  "score_expression": "quality",
  "weight_expression": "free_float_market_cap",
  "rules": {
    "max_constituents": 20,
    "rebalancing_period": "QUARTERLY",
    "capping_methodology": "THRESHOLD_BASED",
    "max_position_weight": "0.10",
    "top_n_position_threshold": "0.045",
    "top_n_position_weight": "0.45"
  }
}
'

import requests

url = "https://x.invalid/api/v1/tilts/{tilt_uuid}"

payload = {
    "base_revision": "2026-09-29T14:32:10Z",
    "assignment_expression": "quality = 2 * revenue_growth_3y + roe",
    "filter_expression": "market_cap > 5000 and fcf_margin > 0.08",
    "score_expression": "quality",
    "weight_expression": "free_float_market_cap",
    "rules": {
        "max_constituents": 20,
        "rebalancing_period": "QUARTERLY",
        "capping_methodology": "THRESHOLD_BASED",
        "max_position_weight": "0.10",
        "top_n_position_threshold": "0.045",
        "top_n_position_weight": "0.45"
    }
}
headers = {
    "X-Api-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {'X-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    base_revision: '2026-09-29T14:32:10Z',
    assignment_expression: 'quality = 2 * revenue_growth_3y + roe',
    filter_expression: 'market_cap > 5000 and fcf_margin > 0.08',
    score_expression: 'quality',
    weight_expression: 'free_float_market_cap',
    rules: {
      max_constituents: 20,
      rebalancing_period: 'QUARTERLY',
      capping_methodology: 'THRESHOLD_BASED',
      max_position_weight: '0.10',
      top_n_position_threshold: '0.045',
      top_n_position_weight: '0.45'
    }
  })
};

fetch('https://x.invalid/api/v1/tilts/{tilt_uuid}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://x.invalid/api/v1/tilts/{tilt_uuid}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'base_revision' => '2026-09-29T14:32:10Z',
    'assignment_expression' => 'quality = 2 * revenue_growth_3y + roe',
    'filter_expression' => 'market_cap > 5000 and fcf_margin > 0.08',
    'score_expression' => 'quality',
    'weight_expression' => 'free_float_market_cap',
    'rules' => [
        'max_constituents' => 20,
        'rebalancing_period' => 'QUARTERLY',
        'capping_methodology' => 'THRESHOLD_BASED',
        'max_position_weight' => '0.10',
        'top_n_position_threshold' => '0.045',
        'top_n_position_weight' => '0.45'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Api-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://x.invalid/api/v1/tilts/{tilt_uuid}"

	payload := strings.NewReader("{\n  \"base_revision\": \"2026-09-29T14:32:10Z\",\n  \"assignment_expression\": \"quality = 2 * revenue_growth_3y + roe\",\n  \"filter_expression\": \"market_cap > 5000 and fcf_margin > 0.08\",\n  \"score_expression\": \"quality\",\n  \"weight_expression\": \"free_float_market_cap\",\n  \"rules\": {\n    \"max_constituents\": 20,\n    \"rebalancing_period\": \"QUARTERLY\",\n    \"capping_methodology\": \"THRESHOLD_BASED\",\n    \"max_position_weight\": \"0.10\",\n    \"top_n_position_threshold\": \"0.045\",\n    \"top_n_position_weight\": \"0.45\"\n  }\n}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("X-Api-Key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://x.invalid/api/v1/tilts/{tilt_uuid}")
  .header("X-Api-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"base_revision\": \"2026-09-29T14:32:10Z\",\n  \"assignment_expression\": \"quality = 2 * revenue_growth_3y + roe\",\n  \"filter_expression\": \"market_cap > 5000 and fcf_margin > 0.08\",\n  \"score_expression\": \"quality\",\n  \"weight_expression\": \"free_float_market_cap\",\n  \"rules\": {\n    \"max_constituents\": 20,\n    \"rebalancing_period\": \"QUARTERLY\",\n    \"capping_methodology\": \"THRESHOLD_BASED\",\n    \"max_position_weight\": \"0.10\",\n    \"top_n_position_threshold\": \"0.045\",\n    \"top_n_position_weight\": \"0.45\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://x.invalid/api/v1/tilts/{tilt_uuid}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Patch.new(url)
request["X-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"base_revision\": \"2026-09-29T14:32:10Z\",\n  \"assignment_expression\": \"quality = 2 * revenue_growth_3y + roe\",\n  \"filter_expression\": \"market_cap > 5000 and fcf_margin > 0.08\",\n  \"score_expression\": \"quality\",\n  \"weight_expression\": \"free_float_market_cap\",\n  \"rules\": {\n    \"max_constituents\": 20,\n    \"rebalancing_period\": \"QUARTERLY\",\n    \"capping_methodology\": \"THRESHOLD_BASED\",\n    \"max_position_weight\": \"0.10\",\n    \"top_n_position_threshold\": \"0.045\",\n    \"top_n_position_weight\": \"0.45\"\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "success": true,
  "tilt_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "version_group_sqid": "<string>",
  "revision": "2023-11-07T05:31:56Z",
  "universe_preset": "<string>",
  "assignment_expression": "<string>",
  "filter_expression": "<string>",
  "score_expression": "<string>",
  "weight_expression": "<string>",
  "included_tickers": [
    {
      "tilt_asset_id": "<string>",
      "symbol": "<string>",
      "name": "<string>",
      "exchange": "<string>"
    }
  ],
  "excluded_tickers": [
    {
      "tilt_asset_id": "<string>",
      "symbol": "<string>",
      "name": "<string>",
      "exchange": "<string>"
    }
  ],
  "rules": {
    "rebalancing_period": "MONTHLY",
    "capping_methodology": "NONE",
    "max_position_weight": "<string>",
    "top_n_positions": 123,
    "top_n_position_weight": "<string>",
    "top_n_position_threshold": "<string>",
    "max_constituents": 2
  },
  "evaluation": {
    "as_of_date": "2023-12-25",
    "total_constituents": 123,
    "total_weight": 123,
    "top_constituents": [
      {
        "ticker": "<string>",
        "score": 123,
        "weight": 0.5
      }
    ]
  },
  "size_segment_base_date": "2023-12-25"
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "revision_conflict",
    "message": "The Tilt changed after this edit started. Reload it and apply the edit again."
  }
}

{
  "error": {
    "code": "<string>",
    "message": "<string>"
  },
  "unknown_columns": [
    "<string>"
  ],
  "closest_matches": [
    "<string>"
  ],
  "unresolved_tickers": [
    {}
  ],
  "ambiguous_tickers": [
    {}
  ]
}