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Overview

This guide shows you how to install the SendLayer SDKs for popular languages so you can start integrating quickly. We currently provide SDKs for Node.js, Python, and PHP.

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Prerequisites

Before using the SendLayer API, make sure you’ve:

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Node.js

Install the SendLayer Node.js SDK using your preferred package manager. 
npm install sendlayer

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Validate Installation

Create a file (for example, checkInstall.js) and run a quick import:
checkInstall.js
import { SendLayer } from 'sendlayer';

const sendlayer = new SendLayer('your-api-key');
console.log('SendLayer initialized:', !!sendlayer);
Replace 'your-api-key' with your actual API key. See our Node.js SDK guide for full usage examples.

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Python

Install the SendLayer Python SDK via pip: 
pip install sendlayer

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Validate Installation

Create a file (for example, check_install.py) and run:
check_install.py
from sendlayer import SendLayer

sendlayer = SendLayer('your-api-key')
print('SendLayer initialized:', bool(sendlayer))
Replace 'your-api-key' with your actual API key. See our Python SDK guide for full usage examples.

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PHP

Install the SendLayer PHP SDK with Composer: 
composer require sendlayer/sendlayer-php

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Validate Installation

Create a file (for example, checkInstall.php) and run:
checkInstall.php
<?php
require_once 'vendor/autoload.php';

use SendLayer\SendLayer;

$sendlayer = new SendLayer('your-api-key');
echo 'SendLayer initialized: ' . ($sendlayer ? 'true' : 'false');
Replace 'your-api-key' with your actual API key. See our PHP SDK guide for full usage examples.

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Next Steps

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Troubleshooting

  • Ensure your environment can make outbound HTTPS requests
  • Verify your API key is correct and active
  • If installation fails, update your package manager (npm, yarn, pip, or composer) and try again
  • Check language version requirements (Node.js 16+, Python 3.8+, PHP 7.4+)