AgentMessage

Overview

AgentMessage is an SMS API for AI agents from Y3 Labs LLC. It is a registered Campaign Service Provider on Bandwidth's network and is built for one-to-one conversations rather than bulk sends. iMessage is sold as an add-on through the same API. The service is in beta: new signups are paused behind a waitlist, and existing accounts keep working.

Key features

• Numbers that receive SMS as soon as they are provisioned, before 10DLC approval
• SMS, MMS and iMessage through one send endpoint, with SMS fallback when iMessage is unavailable
• Built-in 10DLC brand and campaign registration, with an AI review of drafts before submission
• Consent API, automatic STOP handling and quiet-hours enforcement on every send
• HMAC-signed webhooks with retries and a replay endpoint
• Conversations, audit log, number lookup and scheduled sends by API
• Number port-ins, plus local, toll-free and short code numbers

Pricing

Pay as you go with a $5 starting credit and no platform fee: $0.94 per number a month, $0.0078 per SMS segment in either direction and $0.02 per MMS, with carrier and 10DLC registry fees passed through at cost. The iMessage add-on is $150 per line a month with no per-message cost and up to 4,000 messages a day per line. Enterprise volume pricing starts at $0.0060 per segment.

How it compares to Linq

Both offer iMessage with SMS fallback. Linq also falls back to RCS and documents group chats, reactions and other iMessage features in its API; AgentMessage's API reference covers SMS and MMS only, and its iMessage lines can only message people who texted first. Linq's Pro plan is a flat fee from $260 a month, while AgentMessage bills SMS per segment and iMessage per line. Linq reports SOC 2 Type II; AgentMessage's DPA says it has not completed a SOC 2 examination.

Best for

Teams building AI agents that hold one-to-one SMS conversations in the US and want 10DLC registration and consent handling built in, once signups reopen.

Sources

• agentmessage.io
• agentmessage.io/llms.txt
• agentmessage.io/features
• agentmessage.io/pricing
• agentmessage.io/about
• agentmessage.io/changelog
• agentmessage.io/legal
• agentmessage.io/legal/beta-terms
• agentmessage.io/legal/dpa
• agentmessage.io/docs
• agentmessage.io/docs/quickstart
• agentmessage.io/docs/messages/sendMessage
• agentmessage.io/docs/conversations/listConversations
• agentmessage.io/docs/webhooks/replayWebhookDelivery
• agentmessage.io/docs/audit-log/listAuditLog
• agentmessage.io/docs/lookups/submitLookup