We build
AI-native products.
Fenrir is a product studio: we build FaciliTrades and its agent-native extension, run hands-on workshop days with Claude, and — quietly — help a few other teams build the same way.
Build
Real products, live and in the making
A peer-to-peer barter marketplace — people trade goods and services directly, no money, ever. Post what you have, say what you want, and a Smart Assistant helps match and chain trades across multiple people at once.
It's live today, with real people posting real trades on the board.
Open FaciliTrades
Real posts, on the board right now.
The agent-native extension
FaciliTrades Agents is the agent-native side of the same trading network — software agents trading on people's behalf, under the same rule: no money, ever.
It's in development. Follow along on the studio page.
Learn
Workshop Days
Next date coming soonPaid, in person, small room. A developer session in the morning, an office session in the afternoon.
Work with us
Quietly, and a few times a year: we take on a small number of engagements by conversation — the same Claude-native craft the studio builds with, applied to your product or workflow.
How that worksHow we build
Engineered, not prototyped
The studio runs on the same craft it builds with — production AI systems, not demos.
Claude-Native Engineering
We architect software around Claude from the ground up — skill systems, tool use, and structured context that make AI a dependable part of the product, not a bolted-on chatbot.
Autonomous Agents
We run our own back office on a fleet of autonomous AI employees — operations, research, and monitoring — so we ship the agent patterns we've already proven in production.
Full-Stack Product
Design, frontend, backend, data, and cloud infrastructure under one roof — built with the same engineering discipline that secured identity systems for millions of users.