Add E-Signatures to Laravel

Quick start

1. Get an API key from signb.ee (free, no credit card)
2. Set SIGNBEE_API_KEY in your environment
3. Add the code below to your app

Laravel example

// app/Http/Controllers/ContractController.php
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;

class ContractController extends Controller
{
    public function send(Request $request)
    {
        $response = Http::withHeaders([
            'Authorization' => 'Bearer ' . env('SIGNBEE_API_KEY'),
        ])->post('https://signb.ee/api/send', [
            'content' => $request->content,
            'senderName' => $request->sender_name,
            'senderEmail' => $request->sender_email,
            'recipientName' => $request->recipient_name,
            'recipientEmail' => $request->recipient_email,
        ]);

        return $response->json();
    }
}

What happens

1. Your app sends markdown or a PDF URL to Signbee
2. Signbee generates a PDF (if markdown) and emails the recipient a signing link
3. Recipient signs — both parties receive the signed PDF with SHA-256 certificate

Also works with AI agents

Install the MCP server to let Claude, Cursor, or Windsurf send documents directly:

npx -y signbee-mcp

Integration details

Laravel is PHP's most popular web framework with elegant syntax and a rich ecosystem. Adding e-signatures to Laravel uses the built-in HTTP client (based on Guzzle) for clean, fluent API calls.

Laravel HTTP Client: The Http facade shown in the example is Laravel's built-in HTTP client. It provides a clean, fluent API for making HTTP requests with automatic JSON encoding, header management, and error handling. No additional packages needed.

Queue integration: For background contract sending, dispatch a SendContractJob to Laravel's queue system. This works with any queue driver (Redis, SQS, database) and provides automatic retries with exponential backoff.

Form requests: Use Laravel's Form Request classes for validation. Create a SendContractRequest with validation rules for each field. Laravel automatically returns 422 errors with detailed validation messages if the request is invalid.

Config management: Store SIGNBEE_API_KEY in your .env file and access it via env('SIGNBEE_API_KEY') or create a config file (config/signbee.php) for structured configuration. Laravel's config caching (php artisan config:cache) optimises production performance.

Notification channel: For advanced integrations, create a custom Signbee notification channel. This lets you send contracts using Laravel's notification system — User::notify(new ContractReady($contract)) — and integrates with Laravel's notification logging and queueing.

FAQs