Two founders.
Berlin, 2026.

S. Proft.

Sebastian comes to Fragmentum from a background in software engineering, with the particular muscle of taking a research prototype and turning it into something a company can actually ship. He is the half of the team that thinks about pricing, contracts, hiring sequence, and the calendar between now and the next funding round.

LLMs and MCP servers are bread-and-butter work for Sebastian. He has authored MCP servers across three very different domains: claude-hass for smart-home control on Home Assistant, a 3D editor MCP for live editor automation, and an MCP layer on top of TFBS-NN, his deep-learning model for transcription-factor binding-site prediction. The protocol is not theoretical to him. It is the daily workflow.

Together with Jan Philipp, he co-built album-mcp, the MCP server layer that exposes album to AI agents. Sebastian wrote the dispatch logic, the 2FA gate, and the Docker packaging that lets album-mcp drop into any MCP-compatible client. He maintains the deployment story: how you run this on your laptop, how you run it on a server, how you run it inside a regulated enterprise.

At Fragmentum he carries the company side of the work: the founder who answers the email, signs the contract, and writes the investor pitch at 4am.

J. P. Albrecht.

Jan Philipp is the author of album. He started the framework as a piece of research infrastructure and published the paper that defines the solution abstraction. Over five years it has become a small institution: half-a-dozen public catalogs, four published papers, the data layer of a CZI Kaggle competition.

Together with Sebastian, he co-built album-mcp, adding the agentic AI layer on top of the framework he wrote. He is the founder who knows the conda solver tricks, the RDF schema details, the reasons certain decisions were made in 2021 that turned out to matter in 2026. He is the one researchers email at midnight when the lifecycle hooks misbehave.

He is also the named author on the foundational arXiv preprint, on Polarity-JaM in Nature Communications, and on ARI3D, and a contributor to the volume-EM protocol in Nature Protocols. The framework has, in other words, his fingerprints all over it.