SMS Integration
With our easy-to-use integration options, businesses and developers can connect SMS to their existing systems, websites and apps — or automate it with no code at all. Every option below is included free with your BulkSMS account.
REST API (v2)
Our modern REST API lets you send messages, manage contacts and track delivery from your own software — with clean JSON, secure API keys, and live interactive documentation you can try in the browser.
Webhooks
Get real-time updates pushed straight to your app — delivery receipts and inbound replies the moment they happen, with no polling required.
Connect your AI assistant (Claude & ChatGPT)
BulkSMS works as a secure tool for AI assistants. Connect Claude or ChatGPT and let it check your balance, read replies and send messages using your credits — under scoped permissions you approve and can revoke at any time.
Zapier
Connect BulkSMS to thousands of apps without writing any code. Trigger a text when a form is submitted, a sale is made or a booking is created.
HTTP API (v1)
Our original POST/GET HTTP API is still fully supported for existing integrations.
Email to SMS
Turn an email into a text message — perfect for servers, alerts and systems that can already send email.
All integration tools are provided free of charge with your BulkSMS account. Open an account to get started — documentation for every option is available once you’re logged in.