The iMessage API for agents_

Build and scale AI agents that communicate over iMessage, RCS and SMS with a simple REST API, TypeScript SDK, and fully managed infrastructure.

Get started
npm install @messages-dev/sdk
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Messaging that feels native

Send iMessage, RCS, and SMS through one API, with tapbacks, typing indicators, and read receipts built in.

SDK & REST API

A TypeScript SDK and simple REST API designed to get you sending messages in minutes.

Sandbox environment

Get 50 free messages per day to build and test your integration before going live.

Real-time webhooks

Instant notifications delivered in milliseconds when messages arrive, reactions are added, or receipts are sent.

Typing, reactions & receipts

Full support for tapback reactions, typing indicators, and read receipts across all conversations.

Managed infrastructure

We handle provisioning, scaling, and monitoring. You just write your agent logic.

Secure by default

End-to-end encryption, API key scoping, and webhook signature verification built in.

Ready to start building?

Get your API key and send your first message in minutes.