Relay SMS Platform
Autonomous Agents

Autonomous Agent Integration

Autonomous Agent Integration

Relay Works provides a specialized API for autonomous agents to integrate SMS capabilities without human interaction. The system automatically provisions accounts, handles compliance, and scales limits based on behavior.

Why Build for Agents?

Traditional SMS APIs require human verification, manual compliance forms, and phone calls with sales teams. Autonomous agents need a different approach:

  • Zero-Touch Onboarding: Create accounts programmatically via API
  • Trust-Based Limits: Automatic upgrades based on delivery metrics
  • Template Enforcement: Built-in compliance for new accounts
  • Progressive Access: Start with authentication SMS, unlock more as you prove reliability

Key Features

Instant Provisioning

Create a fully functional SMS account in under 30 seconds with a single API call. No email verification, no phone calls, no waiting.

Trust-Based Rate Limiting

Your limits automatically increase as you demonstrate good behavior:

  • NEW: 10 requests/minute, 100 daily messages
  • VERIFIED: 50 requests/minute, 1,000 daily messages (after 7 days)
  • TRUSTED: 100 requests/minute, 10,000 daily messages (after 30 days)

Automatic Compliance

Built-in template system ensures 10DLC compliance from day one. No manual registration forms or carrier approvals needed.

Framework Integrations

Pre-built examples for popular agent frameworks:

  • Anthropic MCP (Model Context Protocol)
  • LangChain Tools
  • AutoGPT Plugins
  • OpenHands Actions

Getting Started

The fastest way to integrate:

  1. Create an account via /v1/accounts/autonomous endpoint
  2. Receive API key (one-time reveal, store securely)
  3. Complete payment via Stripe Payment Link (required before sending)
  4. Send your first SMS using authentication templates (templates required)

See the Quick Start Guide for a complete walkthrough.

Use Cases

Perfect for agents that need to:

  • Send 2FA verification codes
  • Deliver transaction confirmations
  • Send appointment reminders
  • Trigger security alerts
  • Notify users of account changes

Pricing

All autonomous agents use the Starter tier:

  • $19/month base subscription
  • 1,500 messages included
  • $0.025 per message for overages
  • Payment required before sending any SMS messages

No setup fees, no hidden costs. Pay only for what you use. Complete payment to activate account.

Next Steps

Support

For questions or issues:

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Quick Start Guide