MCP and A2A — The Protocol Layer of the Agent Ecosystem
MCP's 2026-07-28 revision makes the protocol stateless and hardens OAuth; A2A 1.0 brings signed Agent Cards, multi-tenancy, and three protocol bindings…
AI Engineering · Made in Germany
We build AI that holds up in production.
Blue IT Systems is an AI engineering house. We design, build and operate agents, retrieval systems and copilots — with evaluation, guardrails and operations from day one.
Startup pace, enterprise standards
Open standards: MCP & A2A
Human-in-the-loop by design
EU AI Act & GDPR aware
fig. 01 — agent system blue: structure · cyan: data · gold: human
What we build
Four areas, one standard.
We work where AI meets real systems — your data, your processes and your compliance requirements.
Peer agents & simulation
Agents with their own state cooperating over A2A — plus a simulated counterpart so the whole journey can be tested end to end.
Learn moreRAG & retrieval
Hybrid search, reranking and graph methods — answers with sources instead of plausible invention.
Learn moreReady-made solutions
ServiceNow agent, Dynamics mapping kit, Antlet.OS, FounderOS and Copilot company agents — proven building blocks instead of a blank page.
Learn moreUse Cases
Document processing, process assistants and knowledge access — concrete cases with measurable outcomes.
Learn moreFrameworks
Microsoft Agent Framework, LangGraph, Semantic Kernel, Copilot Studio — chosen for your stack, not for fashion.
Learn moreEngineering notes
Since 2023 we have documented what actually works in AI systems — with numbers, sources and honest limits.
Read the blogLatest writing
From production, not from a brochure.
Subagents vs. Peer Agents — Two Working Modes of Multi-Agent Systems
Subagents and peer agents are both called multi-agent systems, but they differ in state, lifecycle, cost, and trust model. This article separates the two…
Simulation-First Agent Engineering
End-to-end agent journeys terminate in state changes inside authorities, ERPs, and partner APIs — systems you cannot freely test against. This article…
Let's build your first production agent.
Bring a use case and your data — we bring the engineering. In a free initial conversation we assess feasibility, risks and a realistic path to production.