Developer platform you can text on iMessage

iMessage has no official API, so reaching the blue bubble programmatically is its own small industry — and this is where the builders live. Sendblue, Linq, Blooio, and the iMessage API expose REST endpoints to send and receive iMessage, SMS, and RCS, with niceties like emoji reactions and voice notes. Comms by Osis sets up a dedicated iMessage line for your agents. Chert is aimed at deploying AI on iMessage at scale. For teams that want to run the stack themselves, Photon is an open-source framework spanning iMessage, Telegram, and WhatsApp; BlueBubbles is the open-source, community-driven ecosystem many of these approaches build on; and Claw Messenger runs an agent's iMessage, RCS, and SMS from Linux, Docker, or Windows. If you're wiring an agent, a CRM, or a product into texting, start here. Ordered editorially by capability, not ad spend — the goal is to match you to the right infrastructure.