PHP SDK for Anthropic Claude

Last updated on December 9th, 2025 by Paul Redmond

The Claude PHP SDK by Dale Hurley provides 1-for-1 functionality with the official Python SDK, supporting PHP v8.1+. Along with a PHP SDK, the author has a Laravel integration, Claude-PHP-SDK-Laravel, which includes a service Facade:

use ClaudePhp\Laravel\Facades\Claude;
 
response()->stream(function () use ($request) {
    $stream = Claude::messages()->stream([
        'model' => 'claude-sonnet-4-5-20250929',
        'max_tokens' => 2048,
        'messages' => [
            ['role' => 'user', 'content' => $request->input('message')]
        ]
    ]);
 
    foreach ($stream as $event) {
        if (($event['type'] ?? '') === 'content_block_delta') {
            echo "data: " . json_encode(['text' => $event['delta']['text'] ?? '']) . "\n\n";
            ob_flush();
            flush();
        }
    }
}, 200, [
    'Content-Type' => 'text/event-stream',
    'Cache-Control' => 'no-cache',
    'X-Accel-Buffering' => 'no',
]);

Main Features

Full API Parity: Comprehensive implementation of Messages, Files, Batches, and Models APIs
Complete Example Coverage: 80+ comprehensive examples covering all Claude documentation pages (11,000+ lines)
PSR Compliance: Follows PSR-12 coding standards and PSR-11 dependency injection patterns
Framework Agnostic: Works seamlessly with Laravel, Symfony, Slim, and other PHP frameworks
Latest Models: Support for Claude Sonnet 4.5, Haiku 4.5, and Opus 4.5
Advanced Features: Tool use, vision, streaming, extended thinking, embeddings, batch processing, and more
Async Ready: Built for modern async patterns with Amphp support
Comprehensive Error Handling: Detailed exception hierarchy matching the Python SDK
Production Ready: All examples tested, documented, and verified with live API calls