Getting an RCS agent approved to send has less to do with the API and more to do with configuration choices made before the first launch request — agent types, brand verification, and Google-managed vs carrier-managed tiers.
Sending a single message is straightforward. Ensuring reliable delivery of millions of messages presents a significant engineering challenge.
Most 2FA APIs bill you per verification and cap you out. Here's a flat-rate, no-hard-caps way to verify users at scale over iMessage — with a live demo you can try right now.
Plugging GPT-4o, Claude, or any LLM into iMessage gets a working bot in 50 lines of code. Shipping one that survives production — typing indicators, message splitting, conversation memory, idempotent webhooks, image handling — is a different story.