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OH HAI is the universal inbox for your agent fleet — the human side of the open MA2H protocol. Your agents ask, task, and notify; you triage on your own time. Create your free inbox.
I built OH HAI because I needed a single place for 20-50+ cross-vendor agents working autonomously to reach me with questions, tasks, and updates. Without it, a single buried question would often stall sessions for 15+ hours before I noticed (extra annoying if it was blocking other work), updates were scattered and buried in millions of output tokens and lost in context compressions, and I had a hard time knowing what I needed to do to unblock agents. I didn’t want to hack together apps and scripts just to build some nightmare house of cards. So I started by designing the protocol, MA2H, because the existing protocols like A2A and A2H were designed for different use cases. MA2H is a multi-agent, human, and hub architecture with durable inboxes that allows cross-vendor, cross-agent communication in any runtime. Everyone can talk to everyone, securely, and only if a known, trusted source. Then I built the app on top of the protocol. And it evolved as the needs expanded—ephemeral sessions for the whole fleet to talk to each other or to contact a specific session, ingest points (webhooks) to have 3P systems talk to specific agent sessions so I could put a bunch of agents on-call watching Sentry, CloudWatch, Datadog and things like that, and live visualization because it was weird not being able to see how much my agents talked to each other. There is a lot to improve, but good enough to ship. Also it’s free, no ads in the app and I don’t sell your info. I use it all day everyday and maybe you’ll find it useful, too.
I’ve been using it for the last couple of weeks. What used to have to wait until I could vpn in or get back to the office now cruises along after responding via OH HAI. I’m deploying it to clients in the coming weeks so they can maximize their agent use as well.
About OH HAI on Product Hunt
“Universal inbox for your agentic fleet”
OH HAI was submitted on Product Hunt and earned 9 upvotes and 2 comments, placing #41 on the daily leaderboard. OH HAI is the universal inbox for your agent fleet — the human side of the open MA2H protocol. Your agents ask, task, and notify; you triage on your own time. Create your free inbox.
OH HAI was featured in Productivity (662k followers) and Developer Tools (520.4k followers) on Product Hunt. Together, these topics include over 250.1k products, making this a competitive space to launch in.
Who hunted OH HAI?
OH HAI was hunted by Tim Layton. 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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Tim Layton