A production case study: an email agent, several RAG collections, FAPI, Stripe, MioWeb and MCP servers over a single continuously updated data layer.
Jan Faller
Blog
Notes and articles about projects, web development, data, and AI integrations.
Blog
How I built a keyless MCP server that gives agents access to Czech registries, annual reports in PDF, and deterministic financial analysis.
An article on developing a SaaS platform for analyzing companies from public registries in the Czech Republic: from an OCR intermediary layer to working directly with PDFs, structured data, deterministic checks, and operational reliability.
What I learned building an email AI agent about model calls, RAG, prompt caching, evaluations, dead ends, and reliable operation.
How I turned YouTube videos into a catalog with transcripts, summaries, and a chatbot that recommends specific content.
The site is built in Next.js and includes a public part and an LMS platform with courses in the members' section.