This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Hey Product Hunt!
I built AgentCourier because every time I wanted an AI agent or script to use email, I hit the same wall: IMAP/SMTP were designed for humans staring at mailboxes, not for code. Even the "modern" transactional email APIs only solve half the problem, as they send but don't really let you receive, thread, or reply programmatically.
AgentCourier is email as a proper REST API. One call spins up a working inbox on our shared domain (no DNS, no waiting), or you can bring your own domain for full control. Every message in and out is JSON. Webhooks fire on new mail. Threads, replies, forwards, attachments. These are all just endpoints.
A few things I like:
- Instant inboxes (POST /v1/inboxes/) and you have a real address you can send to from anywhere
- Scoped API keys (read, send, admin, webhook) so agents only get what they need
- Webhook deliveries with signed payloads for reliable ingest into your app or agent loop
- No mailbox UI to maintain -- it's infrastructure, not a product your users have to learn
It's built for the world where software (not just people) sends and receives email. Agents replying to customer threads, scripts monitoring an address, SaaS apps giving every user their own inbox.
Free tier includes a shared-domain inbox and a custom domain, so you can be sending and receiving in under 60 seconds. Would love your feedback, especially on the API ergonomics and what's missing. Happy to answer anything here today!
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About AgentCourier on Product Hunt
“Email Inboxes for your AI agents”
AgentCourier was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #76 on the daily leaderboard. Send and receive email programmatically via a REST API. Create an inbox in one API call. Built for AI agents, automation, and developers.
AgentCourier was featured in Email (36.7k followers) and API (98.1k followers) on Product Hunt. Together, these topics include over 16.4k products, making this a competitive space to launch in.
Who hunted AgentCourier?
AgentCourier was hunted by Brassframe. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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