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Umbra
OpenAI-compatible API for models nobody else hosts
Most useful open-weight models still don’t have a hosted API. You either rent a GPU, leave a Mac running overnight, or send prompts somewhere that can read them. Umbra is my experiment: an OpenAI-compatible endpoint (Anthropic-compatible too) where Apple Silicon owners host public Hugging Face GGUFs they approve. You swap base_url, keep your existing client, pay per token. Try it: https://tryumbra.dev Quickstart: https://tryumbra.dev/docs/quickstart Host a Mac: https://tryumbra.dev/setup
Hey Product Hunt — I’m Thomas. I built Umbra.
I kept hitting the same wall: a model I wanted only existed as a GGUF on Hugging Face. No API. Options were rent a GPU, self-host, or trust a random endpoint with my prompts.
So I built a boring interface for that. Swap base_url, mint a key, hit Macs that are code-attested. Privacy isn’t “we pinky-promise we don’t log.” The design is: decrypt in-process, don’t persist, fail closed if trust checks fail.
Honest alpha limits: two live models, HK-only cash-out for providers, no production SLA. I’m not pretending this is Together with a different logo.
I’ll be in the comments all day. If you try it, I’d rather hear:
does the API behave like a real OpenAI-compatible provider under stress?
is the trust story clear or hand-wavy?
which public GGUF should be next?
Quickstart: https://tryumbra.dev/docs/quicks...
About Umbra on Product Hunt
“OpenAI-compatible API for models nobody else hosts”
Umbra was submitted on Product Hunt and earned 6 upvotes and 2 comments, placing #147 on the daily leaderboard. Most useful open-weight models still don’t have a hosted API. You either rent a GPU, leave a Mac running overnight, or send prompts somewhere that can read them. Umbra is my experiment: an OpenAI-compatible endpoint (Anthropic-compatible too) where Apple Silicon owners host public Hugging Face GGUFs they approve. You swap base_url, keep your existing client, pay per token. Try it: https://tryumbra.dev Quickstart: https://tryumbra.dev/docs/quickstart Host a Mac: https://tryumbra.dev/setup
On the analytics side, Umbra competes within API, Developer Tools and Artificial Intelligence — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how Umbra performed against the three products that launched closest to it on the same day.
Who hunted Umbra?
Umbra was hunted by Thomas Suen. 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.
For a complete overview of Umbra including community comment highlights and product details, visit the product overview.
Thomas Suen