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Our story

Built by a developer,
for developers

Kronvex started as a personal frustration — AI agents that forgot everything between sessions.

The story behind Kronvex

My name is Baptiste Hoffmann. I'm a software engineer based in Paris. I hold an engineering degree in computer science, specialised in data science, and spent three years as a data analyst at Thales Digital Identity & Security — building and maintaining systems that processed a database of 150 million patents. Working at that scale taught me what it really means when infrastructure fails silently.

At Thales, I automated patent data collection via API integrations, built Power BI dashboards for IP strategy teams, and applied machine learning to competitive intelligence workflows. I also spent four months at Safran in Cincinnati, Ohio, working on supply chain analytics — structuring ERP data, building KPI dashboards, and automating reporting pipelines in Python and SQL. In both cases: production data, real business stakes, no room for flaky tooling.

When I started building AI agents on the side, I ran into the same wall every time: the agents were stateless. Everything they learned during a session — user preferences, past decisions, accumulated context — vanished the moment the conversation ended. I explored the available memory solutions. Most required a dedicated vector database, custom embedding pipelines, and weeks of configuration. The managed options were US-hosted and opaque on pricing.

So I built the layer I wished existed. FastAPI backend, PostgreSQL with pgvector for cosine similarity, OpenAI text-embedding-3-small, hosted entirely in the EU on Supabase Frankfurt. Three endpoints: /remember, /recall, /inject-context. I launched Kronvex in March 2026. No VC funding — EU-hosted by principle, because that's the right default when you're building infrastructure that stores what AI agents know about your users.

BH
Baptiste Hoffmann
Founder & CEO, Kronvex · Paris · Engineer in Data Science
LinkedIn Kronvex @KronvexIO [email protected]
<40ms
Recall latency p99 (HNSW index)
EU
Data hosted in Frankfurt, Germany
3
API endpoints to integrate
5min
Time to first memory stored
Mission

"Build the memory layer that makes AI agents actually useful — persistent, semantic, GDPR-native, production-ready."

What we stand for

Developer-first

REST API with OpenAPI docs. Python and Node SDKs. No vendor lock-in — your memories are yours, exportable anytime.

EU by default

All data lives in Frankfurt (Supabase EU cluster). GDPR isn't an afterthought — it's baked into the architecture from day one.

Honest pricing

Fixed monthly plans. No per-call billing surprises. The price you see is the price you pay — clear limits, no hidden multipliers.

Built on

The stack is intentionally boring. Proven tools, EU infrastructure, no exotic dependencies.

FastAPI PostgreSQL + pgvector OpenAI Embeddings Cloudflare Workers Railway Supabase EU

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No credit card. Your first memory stored in under 5 minutes.

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