SDKs Overview

SignEngine provides official SDKs for popular programming languages, making it easy to integrate digital signatures into your applications.

Available SDKs

TypeScript/JavaScript

Perfect for Node.js backends and modern JavaScript applications.

• Package: @signengine/api-client
• Installation: npm install @signengine/api-client
• Requirements: Node.js 20+

View TypeScript Documentation →

Python

Ideal for Python web applications and automation scripts.

• Package: signengine
• Installation: pip install signengine
• Requirements: Python 3.8+

View Python Documentation →

PHP

Great for PHP web applications and WordPress integrations.

• Package: signengine/signengine-php
• Installation: composer require signengine/signengine-php
• Requirements: PHP 8.0+

View PHP Documentation →

Java

For Java and Spring Boot applications.

• Package: com.signengine:signengine-java
• Installation: Maven or Gradle
• Requirements: Java 11+

View Java Documentation →

.NET

For .NET and ASP.NET Core applications.

• Package: SignEngine.SDK
• Installation: dotnet add package SignEngine.SDK
• Requirements: .NET 6.0+

View .NET Documentation →

Common Features

All SDKs provide:

✅ Type-safe API - Full TypeScript/type definitions ✅ Automatic retries - Configurable retry logic for transient errors ✅ Error handling - Structured error responses ✅ Async/await support - Modern async patterns ✅ Comprehensive documentation - Inline code documentation ✅ Examples - Real-world usage examples

Quick Comparison

Feature	TypeScript	Python	PHP	Java	.NET
Type Safety	✅	✅	✅	✅	✅
Async/Await	✅	✅	✅	✅	✅
Auto-retry	✅	✅	✅	✅	✅
Webhooks	✅	✅	✅	✅	✅
File Upload	✅	✅	✅	✅	✅

Installation

Choose your language and get started:

TypeScript/JavaScript

npm install @signengine/api-client

Python

pip install signengine

PHP

composer require signengine/signengine-php

Java

<dependency>
    <groupId>com.signengine</groupId>
    <artifactId>signengine-java</artifactId>
    <version>1.0.0</version>
</dependency>

.NET

dotnet add package SignEngine.SDK

Basic Usage

Here's how to create an envelope in each language:

TypeScript/JavaScript

import { SignEngineClient } from '@signengine/api-client';

const client = new SignEngineClient({
  apiKey: process.env.SIGNENGINE_API_KEY,
});

const envelope = await client.envelopes.create({
  name: 'Contract',
  recipients: [{ email: '[email protected]', name: 'John Doe' }],
  documents: [{ name: 'contract.pdf', content: buffer }],
});

Python

from signengine import SignEngineClient

client = SignEngineClient(api_key=os.getenv('SIGNENGINE_API_KEY'))

envelope = client.envelopes.create(
    name='Contract',
    recipients=[{'email': '[email protected]', 'name': 'John Doe'}],
    documents=[{'name': 'contract.pdf', 'content': content}]
)

PHP

use SignEngine\SignEngineClient;

$client = new SignEngineClient(['apiKey' => getenv('SIGNENGINE_API_KEY')]);

$envelope = $client->envelopes->create([
    'name' => 'Contract',
    'recipients' => [['email' => '[email protected]', 'name' => 'John Doe']],
    'documents' => [['name' => 'contract.pdf', 'content' => $content]]
]);

SDK Source Code

All SDKs are open source and available on GitHub:

• TypeScript SDK
• Python SDK
• PHP SDK
• Java SDK
• .NET SDK

Need Help?

• 📖 Check the language-specific documentation
• 💬 Open an issue on GitHub
• 📧 Contact support at [email protected]

Next Steps

Choose your language to get started:

• TypeScript/JavaScript →
• Python →
• PHP →
• Java →
• .NET →