Open-source SDK which allows you to build custom agents which with any tool or native endpoint, with only 4 lines of code. UTCP has collectively +1k GitHub stars, +5k downloads, and is trusted by engineers at AWS, Microsoft, NVIDIA, etc...
For context, we built UTCP as a lightweight alternative to MCP that leverages existing infra and enables direct tool calling.
In the same philosophy of simplicity, we’re now launching UTCP Agent, which allows you to spin up a tool-calling agent within your infrastructure in just 4 lines of code. That’s all.
I think more of our creative energies should be channeled into building cool and useful agent workflows, and less into worrying about cumbersome infra problems. Would love to see what you come up with!
Always feel free to hit us up (our Discord) or, if you want to join our team, check out our GitHub.
Finally, would love your feedback and support here!
I love the simplicity of the JSON manifest approach — feels like it lowers the barrier for tool builders a lot.
It looks cool, thanks for your contribution to the open-source community, I'll try it
4 lines of code to build custom tool-calling agents? That’s wild—setting up integrations always eats up my afternoon. How does it handle authentication with different tools?
@aliraza36580 Looks super cool, I am curious to try it!
About UTCP Agent on Product Hunt
“Build tool-calling agents in 4 lines of code”
UTCP Agent launched on Product Hunt on August 31st, 2025 and earned 132 upvotes and 10 comments, placing #8 on the daily leaderboard. Open-source SDK which allows you to build custom agents which with any tool or native endpoint, with only 4 lines of code. UTCP has collectively +1k GitHub stars, +5k downloads, and is trusted by engineers at AWS, Microsoft, NVIDIA, etc...
UTCP Agent was featured in Open Source (68.3k followers), Developer Tools (511.2k followers), Artificial Intelligence (466.5k followers) and GitHub (41.2k followers) on Product Hunt. Together, these topics include over 184.2k products, making this a competitive space to launch in.
Who hunted UTCP Agent?
UTCP Agent was hunted by fmerian. 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.
Want to see how UTCP Agent stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
fmerian
Hi Product Hunters,
I’m Ali, one of the faces behind UTCP Agent alongside @juan_viera_garcia1 , @radulescu_razvan , @andrei_stefan_ghiurtu, Bek, and the rest of the contributors.
For context, we built UTCP as a lightweight alternative to MCP that leverages existing infra and enables direct tool calling.
In the same philosophy of simplicity, we’re now launching UTCP Agent, which allows you to spin up a tool-calling agent within your infrastructure in just 4 lines of code. That’s all.
I think more of our creative energies should be channeled into building cool and useful agent workflows, and less into worrying about cumbersome infra problems. Would love to see what you come up with!
Always feel free to hit us up (our Discord) or, if you want to join our team, check out our GitHub.
Finally, would love your feedback and support here!