Developer Tools
Courier
The messaging platform for humans and AI agents
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DR: Domain Rating by Ahrefs. Checked 4 Oct, changed 3 Oct.
Mission brief
Orchestrate notifications and lifecycle journeys across email, push, SMS, chat, and in-app channels from a single platform with AI agents.
Questions from the ground
How much does Courier cost?
Three plans are available: Developer is free with 10,000 sends per month, Business is pay-as-you-go at $0.005 per send, and Enterprise offers custom pricing with volume discounts. Pricing is based on notifications sent, not team size or channels.
Does Courier have a free plan?
Yes, the Developer plan is free and includes 10,000 sends per month.
Which channels does Courier support?
Courier supports email, SMS, push, in-app, Slack, Teams, WhatsApp, and more. You can set channel priorities and fallback logic with no-code rules.
Can Courier integrate with HR or scheduling events?
Yes, you can integrate with your CDP or event tracker to automate every milestone and trigger messages based on HR or scheduling events.
Can AI agents send notifications through Courier?
Yes, AI agents can send notifications through Courier. You can run GPT-5.4, Claude Opus, and other frontier models as a step in any workflow to score users, generate personalized content, enrich profiles, and return structured output.
Key features
- Multi-channel delivery (email, SMS, push, chat, in-app)
- In-app notification center with real-time sync
- Design Studio for visual template creation
- Journey Builder for multi-step orchestration
- AI Agent integration with frontier models
- Event-driven messaging from user behavior
- Intelligent routing with channel fallbacks
- Delivery analytics and observability
- SDKs, REST API, and MCP server support
Pricing
Developer plan free with 10,000 sends per month; Business plan at $0.005 per send; Enterprise plan with custom pricing and volume discounts. No per-seat or channel add-on fees.
Courier has a free listing. The owner can unlock the full profile with a paid launch for $5:
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- Screenshots and demo video (locked)
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Link metrics
Majestic link data for courier.com; the arrow is the change since the previous check.
- Trust Flow
- 50
- no change since last check
- Citation Flow
- 47
- no change since last check
- Referring domains
- 1,529
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- External backlinks
- 161,039
- no change since last check
Top topic: Business/Publishing and Printing (50). Checked 3 Oct 2026, changed 3 Oct 2026. Link data by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.