Review / Hosted API
Claw Messenger review
The cheapest way in, aimed at AI agents rather than businesses.
Claw Messenger is an iMessage API built for AI agents — the pitch is an agent line with its own registered number and no Mac server to maintain. It routes across iMessage, RCS and SMS, supports tapbacks, typing indicators, read receipts and group chats, and signs its webhooks with HMAC. Its entry tiers are an order of magnitude cheaper than anything else here, which makes it a genuinely low-risk way to test the channel.
What it is good at
- Entry pricing low enough that testing the channel costs less than lunch.
- HMAC-signed webhooks by default — the right security posture, not an upsell.
- Group chats and tapbacks supported, which several larger vendors do not state clearly.
- Framework-friendly for LangChain, CrewAI and n8n workflows.
Where it will bite you
- Message allowances on the cheap tiers are small; costs climb once you are real.
- Agent-first positioning means less material aimed at ordinary small-business use.
- Newest vendor here — weigh that against how much your messaging matters.
Tracking links with Claw Messenger
UTM note
Agent-generated messages are the easiest place for tagging to drift. Give the agent a tagging tool rather than letting it compose URLs itself.
Whatever you send with, build the URL from one helper so tagging is consistent across every job and campaign. Open the UTM builder to generate one now.
Still weighing options?
The comparison table puts all five side by side.