Originally published at claudeguide.io/claude-api-php-guide

Claude API PHP & Laravel Tutorial: Complete Integration Guide

The Claude API has no official PHP SDK, but integration is straightforward using Guzzle or Laravel's HTTP client — both support streaming responses, and the REST API at api.anthropic.com/v1/messages is identical to what Python and Node.js clients use in 2026. A basic PHP call to https://api.anthropic.com/v1/messages with an x-api-key header and a JSON body is all you need to start. This guide walks you through everything from a plain PHP cURL call to a full Laravel service layer with queued jobs and streaming.

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Quick Start: Plain PHP with cURL

No dependencies required for a basic call:

<?php

$apiKey = getenv('ANTHROPIC_API_KEY');

$data = [
    'model'      =

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## Error Handling and Rate Limits

php
use GuzzleHttp\Exception\ClientException;
use GuzzleHttp\Exception\ServerException;

public function safeChat(string $message): string
{
$maxRetries = 3;

for ($attempt = 0; $attempt < $maxRetries; $attempt++) {
    try {
        return $this-

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