# SpacePost

> SpacePost is a Resend-compatible email API for developers, built on Amazon SES. Keep the official Resend SDK (or
> plain HTTP), change the base URL to https://api.spacepost.dev, and keep the rest: sends, batches, scheduling,
> webhooks, domains, audiences and broadcasts. Built and run by Studio 404 d.o.o. (Slovenia, EU).

## Who it's for

Developers and teams sending transactional and product email from their apps: sign-up confirmations, receipts, password
resets, notifications, and opt-in broadcasts with one-click unsubscribe.

## What you get

- REST API compatible with Resend's request and response shapes; official Node SDK @spacepost/node.
- SMTP relay (smtp.spacepost.dev:25976, STARTTLS) for frameworks and tools that speak SMTP.
- Signed webhooks (Standard Webhooks signatures) for sent, delivered, delayed, bounced, complained, opened and clicked events.
- Test addresses at @test.spacepost.dev that simulate delivery outcomes without sending real email.
- An MCP server (@spacepost/mcp) so coding agents can send and inspect email.
- Sending from Amazon SES in eu-central-1 (Frankfurt). Bounces and complaints are suppressed automatically.

## Pricing (EUR, excluding VAT)

- Free: €0/month, 3,000 emails a month included, sending stops at the limit; 3 sending domains, 30-day logs.
- Pro: €9/month, 50,000 emails a month included, then €0.25 per extra 1,000; 10 sending domains, 30-day logs.
- Scale: €35/month, 200,000 emails a month included, then €0.20 per extra 1,000; 1,000 sending domains, 60-day logs.

## Key pages

- [Home](https://spacepost.dev/): what SpacePost is and a live send simulator.
- [Pricing](https://spacepost.dev/pricing): plans, limits and billing questions.
- [SpacePost vs Resend](https://spacepost.dev/compare/resend): feature parity, what's planned, migration steps.
- [Security](https://spacepost.dev/security): how sending, data and access are protected.
- [Sub-processors](https://spacepost.dev/legal/subprocessors): where data is processed.
- [Changelog](https://spacepost.dev/changelog)

## Documentation

- [Docs](https://docs.spacepost.dev/): quickstart, sending, domains, webhooks, SDKs, SMTP, API reference.
- [Docs llms.txt](https://docs.spacepost.dev/llms.txt) and [llms-full.txt](https://docs.spacepost.dev/llms-full.txt): the full documentation as text.