SendyStack
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Introduction

Welcome to the SendyStack API

The SendyStack API allows you to build powerful WhatsApp communication experiences for your business.

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Developer building on SendyStack

Base URL

https://api.sendystack.com/v1

Authentication

SendyStack uses API keys to authenticate requests. Include your API key in the Authorization header.

Header

Authorization: Bearer YOUR_API_KEY

Keep your API key secure. Do not share it in publicly accessible areas.

Full details: Read the Authentication guide →

Quick Example

Here's a quick example of sending a WhatsApp message using cURL.

curl -X POST https://api.sendystack.com/v1/messages \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+254712345678",
    "type": "text",
    "text": {
      "body": "Hello from SendyStack! 👋"
    }
  }'

API Endpoints

Explore our API resources to build powerful integrations.

Messages

Send and manage WhatsApp messages.

4 Endpoints

Templates

Create, update and manage message templates.

3 Endpoints

Contacts

Manage your contacts and contact lists.

4 Endpoints

Broadcasts

Send bulk messages to your audiences.

2 Endpoints

Webhooks

Receive message events and customer replies.

7 Endpoints

API Keys

Create scoped keys for server-side integrations.

3 Endpoints

Next Steps

Ready to start building?

View SDKs

Use our official SDKs to get started faster.

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See Examples

Check out real-world integration examples.

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