BrowserSolver PHP SDK

The official PHP SDK for the BrowserSolver web unlocker API.

Unlock, render, crawl and screenshot any website — anti-bot bypass and technology detection through one API.

The SDK exposes 9 methods, one per documented endpoint (with array-shape PHPDoc for static analysis), plus a generic request(). It sends requests through any PSR-18 client and uses Guzzle by default.

Requirements

• PHP 8.1 or newer

Installation

composer require browsersolver/sdk

Get your API key

Sign up for BrowserSolver or sign in, then copy your API key from the dashboard. The client reads the BROWSERSOLVER_API_KEY environment variable when no key is passed.

Quick start

<?php

require 'vendor/autoload.php';

use BrowserSolver\Client;

$client = new Client(getenv('BROWSERSOLVER_API_KEY') ?: null);
$response = $client->websiteWebunlocker(['query' => 'https://example.com']);
print_r($response->data);

Parameter arrays use the names of the API reference. Unknown names throw a SerializationException; use request() for undocumented parameters.

Binary responses

Endpoints that can return a file (image, PDF…) return a JsonResponse or a BinaryResponse:

use BrowserSolver\BinaryResponse;

$response = $client->websiteScreenshot(['url' => 'https://example.com', 'format' => 'png']);
if ($response instanceof BinaryResponse) {
    $response->save('screenshot.png');
}

Async jobs

Any call accepts is_async: true (useful past the 60-second server limit): the response is then a job_id. waitForJob() polls GET /v1/jobs/{id} until a terminal status (CompletedJob, Error, NotFound, BadRequest):

$submitted = $client->websiteWebunlocker(['query' => 'https://example.com', 'is_async' => true]);
$job = $client->waitForJob($submitted->data['job_id'], onProgress: static function (array $job): void {
    echo $job['status'], ' ', $job['progress'] ?? 0, "%\n";
});
print_r($job->data);

GET or POST

Methods use GET when the endpoint supports it (query string). POST sends the same parameters as JSON:

use BrowserSolver\RequestOptions;

$client->websiteCrawler(['query' => 'https://books.toscrape.com/'], new RequestOptions(method: 'POST'));

null values are omitted, false and 0 are sent, and lists repeat the parameter name.

Any endpoint

$response = $client->request('GET', '/v1/usage');

Errors

use BrowserSolver\Exception\ApiException;

try {
    $client->websiteWebunlocker(['query' => 'https://example.com']);
} catch (ApiException $exception) {
    echo $exception->status, ': ', $exception->getMessage();
}

Exception	When
ConfigurationException	Missing API key, invalid options or unsupported method.
SerializationException	A required parameter is missing, unknown or can't be sent.
TransportException	Network failure or timeout.
ApiException	Non-2xx status (status, errorMessage, responseBody, rawResponse).
ResponseDecodingException	A success response could not be decoded.

All of them extend BrowserSolver\Exception\BrowserSolverException.

Retries

Requests are retried up to 3 times after a network error, a 408, 500, 502, 503 or 504, or a rate limit — which the API returns as 401 (or 429) with a Rate limit exceeded message. Per-key quota errors (…: quota daily) are not retried, nor are 400, 402, 404 or client-side timeouts. The delay starts at 1 second and grows 1.5× per retry (capped at 30 seconds); a Retry-After header wins.

$client = new Client(null, ['max_retries' => 5, 'retry_delay' => 0.5]);
$client->websiteWebunlocker(['query' => 'https://example.com'], new RequestOptions(maxRetries: 0)); // one request without retries

Batch requests

batch() sends several calls with at most 10 requests in flight ($concurrency), through Guzzle's connection pool, and returns one BatchResult per call in input order. A failing call never stops the others. With a custom PSR-18 client the calls run one after another.

$inputs = ['https://example.com', 'https://www.browsersolver.com'];
$calls = array_map(static fn(string $value): array => ['websiteWebunlocker', ['query' => $value]], $inputs);

foreach ($client->batch($calls, concurrency: 5) as $result) {
    if ($result->ok()) {
        print_r($result->value->data);
    } else {
        echo $inputs[$result->index], ': ', $result->error->getMessage(), "\n";
    }
}

Constant	Default	Description
Client::DEFAULT_CONCURRENCY	10	Tasks run at the same time by batch
Client::DEFAULT_TIMEOUT	120.0	Request timeout (seconds)
Client::MAX_RETRIES	3	Retry attempts after a network error, a 408/5xx or a rate limit
Client::RETRY_BACKOFF_FACTOR	1.5	Exponential backoff multiplier
Client::DEFAULT_RETRY_DELAY	1.0	Delay before the first retry (seconds)

Options and custom HTTP clients

$client = new Client(null, [
    'timeout' => 60.0,               // seconds, default 120 (default Guzzle client only)
    'headers' => ['X-Trace' => 'abc'],
    'http_client' => $psr18Client,   // optional: any PSR-18 client
]);

Endpoints

9 methods, generated from the OpenAPI document.

Method	HTTP	Description
jobs()	GET /v1/jobs/{id}	Poll the status, progress (0–100) and result of a job started with is_async=true. Polling is free. Poll until status is terminal: Completed…
stats()	GET /v1/stats	Infrastructure health for an engine or endpoint over the last hour. Not scoped to your account or tenant. Enabled per account: HTTP 403 mea…
usage()	GET /v1/usage	Retrieve real-time usage statistics and credit balance for your BrowserSolver account.
websiteAntibot()	GET /v1/website/antibot	Single-pass scan that names the bot-protection vendor in front of a URL so you can choose the right BrowserSolver fetch tier next.
websiteCrawler()	GET / POST /v1/website/crawler	Fast HTTP pull of public HTML with no browser session. Ideal when the first response already contains the content you need.
websiteRendering()	GET /v1/website/rendering	Run a managed browser session against a public URL and collect the HTML after client-side scripts finish. Prefer Crawler for static markup;…
websiteScreenshot()	GET / POST /v1/website/screenshot	Turn any public URL into a PNG, JPEG, WebP, or PDF asset rendered by BrowserSolver. No local Chromium fleet to operate.
websiteTechnology()	GET / POST /v1/website/technology	Map CMS, frameworks, analytics, CDN, and security tooling exposed by a public URL. Choose simple lists or expert metadata with confidence s…
websiteWebunlocker()	GET / POST /v1/website/webunlocker	BrowserSolver's highest HTML fetch tier for retail and marketplace hosts on your account whitelist. Solves persistent bot challenges that s…

All BrowserSolver SDKs

SDK	Package	Install
Node.js	@browsersolver/sdk	npm install @browsersolver/sdk
Python	browsersolver	pip install browsersolver
Go	browsersolver-go	go get github.com/browsersolver/browsersolver-go
.NET	BrowserSolver	dotnet add package BrowserSolver
Ruby	browsersolver	gem install browsersolver
PHP	browsersolver/sdk	composer require browsersolver/sdk
Java	browsersolver-java	build from source, see its README
CLI	@browsersolver/cli	npm install -g @browsersolver/cli
MCP server	@browsersolver/mcp	npx -y @browsersolver/mcp

License

MIT — see LICENSE.