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Courier

Notification infrastructure API for sending messages across channels

As of 29 August 2026, Courier is free to use. Notification API letting developers send email, push, SMS, and chat messages through one integration with journeys and templates. Softwr lists it under Communication. Courier is available on Web, API.

Overview

What Courier does

Courier is a notification infrastructure platform that lets developers send messages across email, push, SMS, and chat channels through a single API, using journeys, broadcasts, and reusable templates. It offers CLI and SDK tooling, AI-assisted translations, and an AI agent node for building notification workflows. Courier prices on a pay-as-you-go basis per notification sent, with a free developer tier and custom enterprise plans.

What people use it for

  • Sending notifications across email, SMS, and push from one API
  • Building automated notification journeys
  • Digesting multiple alerts into a single message
  • Localizing notification content with AI translation

The honest half

Where it falls short

Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Courier.

  • Enterprise-only features like RBAC and EU data residency require a custom sales conversation rather than a published plan.
  • Pay-as-you-go per-send pricing on Business can become costly at very high volume compared to flat committed pricing elsewhere.
  • The free Developer tier is capped at 10,000 sends per month, which is limiting for growing production apps.

Cross-shopped

What people choose instead of Courier

Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

  • Courier logo
    Courier
    vs
    Novu logo
    Novu

    Novu: Novu is an open-source alternative offering similar multi-channel notification infrastructure with a self-hostable option.

  • Courier logo
    Courier
    vs
    Resend logo
    Resend

    Resend: Resend focuses specifically on email delivery for developers rather than multi-channel notifications.

Pricing

What Courier costs

Taken from the vendor's own pricing page. Prices move, so check before you buy.

Developer

Free

  • 10,000 sends/month
  • Journeys and broadcasts
  • MCP server, CLI, and SDKs
  • Email support

Business

On request

  • $0.005 per send pay-as-you-go
  • AI translations
  • AI agent node
  • Email and chat support

Enterprise

On request

  • Volume discounts
  • Dedicated Slack channel
  • Role-based access control
  • Enterprise SLA and EU data residency

Capabilities

Features

  • Multi-channel sending

    Send notifications via email, push, SMS, and chat from one API

  • Journeys and broadcasts

    Build automated notification sequences and one-off broadcasts

  • Digest and batching

    Combine multiple notifications into digests to reduce noise

  • AI translations

    Automatically translate notification content for internationalization

  • MCP server and CLI

    Developer tooling for integrating and managing notifications

  • Role-based access control

    Manage team permissions on Enterprise plans

Answered, with sources

Questions people ask

Each answer names the page it came from, so you can check it rather than take our word for it.

What does Courier cost?

Courier has three plans: Developer is free for 10,000 sends per month, Business is pay-as-you-go at $0.005 per send, and Enterprise is custom-priced with volume discounts.

Source
Is there a free plan, and what are its limits?

Yes, the Developer plan is free and includes 10,000 notification sends per month along with journeys, broadcasts, the MCP server, CLI, SDKs, and email support.

Source
How is usage metered?

Courier bills based on the number of notifications sent, not on team size or number of channels used, with Business plan sends charged at $0.005 each.

Source
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Softwr does not host reviews and shows no star rating for Courier, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.

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