Software
that makes
ideas visible.
Phantazein is an independent studio building agents, integrations, and cryptographic tooling for clients across the EU and the United States. Focused engagements. Shipped code. Fewer decks.
Three lines of work, one working principle.
Focused engagements. Shipped code. Fewer decks.
Focused engagements
Most engagements run four to twelve weeks, with a single principal on the other end of the thread. Scope is negotiated in writing and revisited weekly. No account managers, no layered pricing tiers.
Claude-native, portable by default
I build with Claude as a first-class collaborator — from the first architectural sketch through production rollouts. Many deliverables, including memory and tool layers, are designed against MCP so they remain portable to any MCP-compatible model.
Shipped code over decks
A working prototype in week one, a production deploy by the midpoint. Strategy documents and roadmaps exist, but always in service of code that is already running somewhere real.
An independent practice, on the Costa del Sol.
Independent by design. Shipped code over decks.
Phantazein is led by Dennis Kittrell. The name is the Greek φαντάζειν — "to make visible" — taken as a working principle. Most of what the studio builds is in service of turning something abstract, half-glimpsed, or inconvenient into something a person can look at, hand off, or act on.
The studio is registered in Spain, operates in English, Spanish and French, and bills in USD and EUR. Engagements are with founders, general counsel, and engineering leaders — often introduced by people already shipped for.