Make an HTTP request through the browser's network stack

Sends an HTTP request through Chrome’s HTTP request stack, inheriting the browser’s TLS fingerprint, cookies, proxy configuration, and headers. Returns a structured JSON response with status, headers, body, and timing.

POST /browsers/{id}/curl

JavaScript

JavaScript

import Kernel from '@onkernel/sdk';

const client = new Kernel({
  apiKey: process.env['KERNEL_API_KEY'], // This is the default and can be omitted
});

const response = await client.browsers.curl('id', { url: 'url' });

console.log(response.body);

import os
from kernel import Kernel

client = Kernel(
    api_key=os.environ.get("KERNEL_API_KEY"),  # This is the default and can be omitted
)
response = client.browsers.curl(
    id="id",
    url="url",
)
print(response.body)

package main

import (
	"context"
	"fmt"

	"github.com/kernel/kernel-go-sdk"
	"github.com/kernel/kernel-go-sdk/option"
)

func main() {
	client := kernel.NewClient(
		option.WithAPIKey("My API Key"),
	)
	response, err := client.Browsers.Curl(
		context.TODO(),
		"id",
		kernel.BrowserCurlParams{
			URL: "url",
		},
	)
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("%+v\n", response.Body)
}

curl --request POST \
  --url https://api.onkernel.com/browsers/{id}/curl \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "url": "<string>",
  "method": "GET",
  "headers": {},
  "body": "<string>",
  "timeout_ms": 30000,
  "response_encoding": "utf8"
}
'

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.onkernel.com/browsers/{id}/curl",
  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([
    'url' => '<string>',
    'method' => 'GET',
    'headers' => [
        
    ],
    'body' => '<string>',
    'timeout_ms' => 30000,
    'response_encoding' => 'utf8'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

HttpResponse<String> response = Unirest.post("https://api.onkernel.com/browsers/{id}/curl")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"url\": \"<string>\",\n  \"method\": \"GET\",\n  \"headers\": {},\n  \"body\": \"<string>\",\n  \"timeout_ms\": 30000,\n  \"response_encoding\": \"utf8\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.onkernel.com/browsers/{id}/curl")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"url\": \"<string>\",\n  \"method\": \"GET\",\n  \"headers\": {},\n  \"body\": \"<string>\",\n  \"timeout_ms\": 30000,\n  \"response_encoding\": \"utf8\"\n}"

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

200

{
  "status": 123,
  "headers": {},
  "body": "<string>",
  "duration_ms": 123
}

{
  "code": "bad_request",
  "message": "Missing required field: app_name",
  "details": [
    {
      "code": "invalid_input",
      "message": "Provided version string is not semver compliant"
    }
  ],
  "inner_error": {
    "code": "invalid_input",
    "message": "Provided version string is not semver compliant"
  }
}

{
  "code": "bad_request",
  "message": "Missing required field: app_name",
  "details": [
    {
      "code": "invalid_input",
      "message": "Provided version string is not semver compliant"
    }
  ],
  "inner_error": {
    "code": "invalid_input",
    "message": "Provided version string is not semver compliant"
  }
}

{
  "code": "bad_request",
  "message": "Missing required field: app_name",
  "details": [
    {
      "code": "invalid_input",
      "message": "Provided version string is not semver compliant"
    }
  ],
  "inner_error": {
    "code": "invalid_input",
    "message": "Provided version string is not semver compliant"
  }
}

{
  "message": "<string>",
  "net_error": 123,
  "net_error_name": "<string>"
}

Authorizations

Authorization · string · header · required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

id · string · required

Browser session ID

Body

application/json

Request to make an HTTP request through the browser's network stack.

url · string · required

Target URL (must be http or https).

method · enum<string> · default: GET

HTTP method.

Available options: GET, HEAD, POST, PUT, PATCH, DELETE, OPTIONS

headers · object

Custom headers merged with browser defaults.

Show child attributes

body · string

Request body (for POST/PUT/PATCH).

timeout_ms · integer · default: 30000

Request timeout in milliseconds.

Required range: 1000 <= x <= 60000

response_encoding · enum<string> · default: utf8

Encoding for the response body. Use base64 for binary content.

Available options: utf8, base64

Response

200

application/json

Response from target URL

Structured response from the browser curl request.

status · integer · required

HTTP status code from target.

headers · object · required

Response headers (multi-value).

Show child attributes

body · string · required

Response body (UTF-8 string or base64 depending on request).

duration_ms · integer · required

Total request duration in milliseconds.