Simulate Fill

curl --request POST \
  --url https://api.polysimulator.com/v1/simulation/fill \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "at": "2026-08-04T18:00:00Z",
  "condition_id": "0xabc123",
  "fill_model": "depth_walk",
  "outcome": "Yes",
  "shares": "10",
  "side": "BUY"
}
'

import requests

url = "https://api.polysimulator.com/v1/simulation/fill"

payload = {
    "at": "2026-08-04T18:00:00Z",
    "condition_id": "0xabc123",
    "fill_model": "depth_walk",
    "outcome": "Yes",
    "shares": "10",
    "side": "BUY"
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    at: '2026-08-04T18:00:00Z',
    condition_id: '0xabc123',
    fill_model: 'depth_walk',
    outcome: 'Yes',
    shares: '10',
    side: 'BUY'
  })
};

fetch('https://api.polysimulator.com/v1/simulation/fill', 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://api.polysimulator.com/v1/simulation/fill",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'at' => '2026-08-04T18:00:00Z',
    'condition_id' => '0xabc123',
    'fill_model' => 'depth_walk',
    'outcome' => 'Yes',
    'shares' => '10',
    'side' => 'BUY'
  ]),
  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://api.polysimulator.com/v1/simulation/fill"

	payload := strings.NewReader("{\n  \"at\": \"2026-08-04T18:00:00Z\",\n  \"condition_id\": \"0xabc123\",\n  \"fill_model\": \"depth_walk\",\n  \"outcome\": \"Yes\",\n  \"shares\": \"10\",\n  \"side\": \"BUY\"\n}")

	req, _ := http.NewRequest("POST", 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.post("https://api.polysimulator.com/v1/simulation/fill")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"at\": \"2026-08-04T18:00:00Z\",\n  \"condition_id\": \"0xabc123\",\n  \"fill_model\": \"depth_walk\",\n  \"outcome\": \"Yes\",\n  \"shares\": \"10\",\n  \"side\": \"BUY\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.polysimulator.com/v1/simulation/fill")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"at\": \"2026-08-04T18:00:00Z\",\n  \"condition_id\": \"0xabc123\",\n  \"fill_model\": \"depth_walk\",\n  \"outcome\": \"Yes\",\n  \"shares\": \"10\",\n  \"side\": \"BUY\"\n}"

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

{
  "book_age_ms": 0,
  "comp_token_id": "tok_no",
  "confidence": "high",
  "fee": "0.1200",
  "fee_model": "polymarket_v2_taker",
  "fill_model": "depth_walk",
  "filled_shares": "10.0000",
  "impact_bps": "0",
  "leakage": {
    "book_depth_available": true,
    "data_source": "archive",
    "fee_model": "polymarket_v2_taker",
    "fill_model": "depth_walk",
    "missing_periods": [],
    "signals_used_pre_decision_data_only": true,
    "slippage_model": "book_walk"
  },
  "levels_used": 1,
  "price_source": "archive",
  "provenance": {
    "bbo_confidence": "high",
    "deduped_events": 0,
    "ghost_guard_triggered": false,
    "hour": "2026-08-04T18",
    "hour_status": "valid"
  },
  "remaining_shares": "0.0000",
  "slippage_bps": "0",
  "token_id": "tok_yes",
  "vwap_fill_price": "0.4000"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>",
  "feature_key": "<string>",
  "upgrade_url": "<string>",
  "limit": 123
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>"
}

{
  "error": "<string>",
  "message": "<string>",
  "details": {},
  "request_id": "<string>"
}