curl --request GET \
  --url https://api.usefoil.com/v1/fingerprints

import requests

url = "https://api.usefoil.com/v1/fingerprints"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://api.usefoil.com/v1/fingerprints', 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.usefoil.com/v1/fingerprints"

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

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

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

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.usefoil.com/v1/fingerprints")

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

request = Net::HTTP::Get.new(url)

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

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.usefoil.com/v1/fingerprints",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

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

curl_close($curl);

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

{
  "data": [
    {
      "object": "visitor_fingerprint",
      "id": "vid_7cyvmdfjs3rzznf8m65v3bv51m",
      "lifecycle": {
        "first_seen_at": "2026-03-01T18:22:11.000Z",
        "last_seen_at": "2026-03-24T20:00:05.000Z",
        "seen_count": 14,
        "expires_at": "2026-03-24T20:00:05.000Z"
      },
      "latest_request": {
        "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 14_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36",
        "ip_address": "203.0.113.10"
      },
      "storage": {
        "cookies": true,
        "local_storage": true,
        "indexed_db": true,
        "service_worker": true,
        "window_name": true
      },
      "anchors": {
        "webgl_hash": "123456789",
        "parameters_hash": "-1234567890",
        "audio_hash": "1234567890"
      }
    }
  ],
  "pagination": {
    "limit": 50,
    "has_more": false,
    "next_cursor": "eyJ2IjoxLCJzY29yZWRBdCI6IjIwMjYtMDQtMTBUMDY6NDI6NDIuNTE0WiIsInJvd0lkIjoiMTc3In0"
  },
  "meta": {
    "request_id": "req_cf147349a4134208aebb8c70e25fb7e1"
  }
}

{
  "error": {
    "code": "request.validation_failed",
    "message": "Observation payload failed validation.",
    "status": 1,
    "retryable": true,
    "request_id": "req_cf147349a4134208aebb8c70e25fb7e1",
    "docs_url": "https://app.acme.co/signup",
    "details": {
      "fields": [
        {
          "name": "Acme Growth Workspace",
          "issue": "required",
          "expected": "string",
          "received": "any_of"
        }
      ],
      "allowed_values": [
        "verified"
      ],
      "header_name": "x-forwarded-for",
      "parameter_set": "browser_fingerprint",
      "next_action": "retry"
    }
  }
}

{
  "error": {
    "code": "request.validation_failed",
    "message": "Observation payload failed validation.",
    "status": 1,
    "retryable": true,
    "request_id": "req_cf147349a4134208aebb8c70e25fb7e1",
    "docs_url": "https://app.acme.co/signup",
    "details": {
      "fields": [
        {
          "name": "Acme Growth Workspace",
          "issue": "required",
          "expected": "string",
          "received": "any_of"
        }
      ],
      "allowed_values": [
        "verified"
      ],
      "header_name": "x-forwarded-for",
      "parameter_set": "browser_fingerprint",
      "next_action": "retry"
    }
  }
}

{
  "error": {
    "code": "request.validation_failed",
    "message": "Observation payload failed validation.",
    "status": 1,
    "retryable": true,
    "request_id": "req_cf147349a4134208aebb8c70e25fb7e1",
    "docs_url": "https://app.acme.co/signup",
    "details": {
      "fields": [
        {
          "name": "Acme Growth Workspace",
          "issue": "required",
          "expected": "string",
          "received": "any_of"
        }
      ],
      "allowed_values": [
        "verified"
      ],
      "header_name": "x-forwarded-for",
      "parameter_set": "browser_fingerprint",
      "next_action": "retry"
    }
  }
}