curl --request GET \
  --url https://api.folk.app/v1/companies \
  --header 'Authorization: Bearer <token>'

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.folk.app/v1/companies', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.folk.app/v1/companies"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

require 'uri'
require 'net/http'

url = URI("https://api.folk.app/v1/companies")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

package main

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

func main() {

	url := "https://api.folk.app/v1/companies"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.folk.app/v1/companies",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

{
  "data": {
    "items": [
      {
        "id": "com_183ed5cc-3182-45de-84d1-d520f2604810",
        "name": "Tech Corp",
        "description": "A leading technology company.",
        "fundingRaised": "5000000",
        "lastFundingDate": "1990-01-01",
        "industry": "Technology",
        "foundationYear": "1990",
        "employeeRange": "51-200",
        "groups": [
          {
            "id": "grp_5fa60242-0756-4e31-8cca-30c2c5ff1ac2",
            "name": "Engineering"
          }
        ],
        "addresses": [
          "123 Main St, Springfield, USA",
          "456 Main St, Springfield, USA"
        ],
        "emails": [
          "john@example.com",
          "john@techcorp.com"
        ],
        "phones": [
          "+1234567890",
          "+0987654321"
        ],
        "urls": [
          "https://example.com"
        ],
        "createdAt": "2021-01-01T00:00:00.000Z",
        "createdBy": {
          "id": "usr_bc984b3f-0386-434d-82d7-a91eb6badd71",
          "fullName": "John Doe",
          "email": "john.doe@example.com"
        },
        "customFieldValues": {
          "grp_5fa60242-0756-4e31-8cca-30c2c5ff1ac2": {
            "Status": "Active",
            "Business type": [
              "B2B",
              "B2C"
            ],
            "Join date": "2021-01-01",
            "Relationships": [
              {
                "id": "per_ed110a47-5d09-43bf-b2e2-791d8231eb5f",
                "fullName": "Bob Smith",
                "entityType": "person"
              },
              {
                "id": "com_9a03f575-8a85-40b0-ba2e-16d8e29e3b03",
                "fullName": "HR services",
                "entityType": "company"
              }
            ]
          },
          "grp_acdf2ad9-6a66-4d32-8594-9694913ac717": {
            "Custom Notes": "Important client, handle with care.",
            "ARR": "42000000",
            "Assignee": [
              {
                "id": "usr_c3606e3b-0a92-4849-90e5-88a8d3f388d6",
                "fullName": "Jane Doe",
                "email": "jane@example.com"
              }
            ]
          }
        }
      }
    ],
    "pagination": {
      "nextLink": "https://api.folk.app/v1/companies?limit=20&cursor=eyJvZmZzZXQiOjIwfQ%3D%3D"
    }
  }
}

{
  "error": {
    "code": "INVALID_REQUEST",
    "message": "The request was invalid.",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#bad-request",
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z"
  }
}

{
  "error": {
    "code": "UNAUTHORIZED",
    "message": "No valid API key provided.",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#unauthorized",
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z"
  }
}

{
  "error": {
    "code": "FORBIDDEN",
    "message": "The API key doesn’t have permissions to perform the request.",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#forbidden",
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z"
  }
}

{
  "error": {
    "code": "RESOURCE_NOT_FOUND",
    "message": "The requested resource was not found.",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#not-found",
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z"
  }
}

{
  "error": {
    "code": "UNPROCESSABLE_ENTITY",
    "message": "Invalid query parameters",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#unprocessable-entity",
    "details": {
      "issues": [
        {
          "code": "too_small",
          "minimum": 1,
          "type": "number",
          "inclusive": true,
          "exact": false,
          "message": "Number must be greater than or equal to 1",
          "path": [
            "limit"
          ]
        }
      ]
    },
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z"
  }
}

{
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "The rate limit has been exceeded.",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#rate-limiting",
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z",
    "details": {
      "limit": 1000,
      "remaining": 0,
      "retryAfter": "2025-10-01T12:00:00Z"
    }
  }
}

{
  "error": {
    "code": "INTERNAL_SERVER_ERROR",
    "message": "An internal server error occurred.",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#internal-server-error",
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z"
  }
}

{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "The service is currently unavailable.",
    "documentationUrl": "https://developer.folk.app/api-reference/errors#service-unavailable",
    "requestId": "123e4567-e89b-12d3-a456-426614174000",
    "timestamp": "2025-10-01T12:00:00Z"
  }
}