We design and ship custom AI agents — voice agents, RAG assistants, and multi-agent workflows — for Greek businesses, in Greek and English. Not a no-code platform, not a demo: production software integrated with the systems you already run, built by the senior team behind Callen AI.
If you have looked for AI agent development in Greece, you have found two options: no-code chatbot platforms that lock you into their roadmap and pricing, or generalist agencies that have never put an LLM-powered agent in front of a real customer. Neither gives you what a custom agent actually requires — production engineering plus fluency in the systems Greek companies actually run.
A useful agent in the Greek market has to do hard, local things: understand and speak Greek and English interchangeably, read and write to Softone, Entersoft, Epsilon Net, or Atlantis ERP, respect myDATA and GDPR constraints, and hand off to a human gracefully when it reaches its limits. That is systems integration work, not prompt writing.
We build agents as software: LLM orchestration (GPT-4-class and Claude-class models), RAG pipelines over your documents with vector databases, multi-agent workflows where specialised agents plan, call tools, and check each other — all in maintainable Python and TypeScript pipelines that your team can own. And we proved the model on ourselves first: Callen AI, our AI voice receptionist, answers real inbound calls and books real appointments today.
The engineering team sits in Athens. Scoping and working sessions in person or remote — same timezone, same context, no offshore relay.
Agents that converse, transcribe, and write in Greek and English — including Greek speech-to-text and text-to-speech for voice agents.
Custom code on your infrastructure and your model accounts. No per-seat SaaS pricing, no platform lock-in, full source ownership.
Every engagement ships a working agent in production — scoped around one high-value workflow, wired into your stack, and measured on real volume. These are the agent classes we build most.
Agents that answer inbound calls, understand intent in Greek or English, and book, route, or resolve — the architecture we run in production with Callen AI: telephony (Twilio), speech-to-text, LLM orchestration, and natural text-to-speech (ElevenLabs).
Retrieval-Augmented Generation over your contracts, manuals, price lists, and internal docs — chunking, embeddings, and a vector database (pgvector, Qdrant) so answers are grounded in your data with citations, not hallucinated.
Multi-agent orchestration for processes no single prompt can handle: a planner agent decomposes the task, specialist agents call tools and APIs, a checker validates before anything touches your systems. Built on LangChain-style orchestration or lean custom pipelines — whichever your case justifies.
Agents that read from and write to what Greek businesses actually run — Softone (Soft1), Entersoft, Epsilon Net, Atlantis ERP — plus myDATA-aware document flows, calendars, CRMs, and telephony. Integration is where agent projects die; it is our core competence.
Agents that read invoices, orders, forms, and email in Greek and English, extract structured data, validate it, and push it into your ERP or CRM — killing the double-entry your back office does every day.
Confidence thresholds, evaluation suites run before every change, full conversation logging, and clean human escalation — the production discipline that separates an agent you can trust from a demo.
We pick the workflow with the clearest ROI, map the integrations (ERP, calendar, telephony, docs), and define success in numbers — calls handled, documents processed, hours saved. In person in Athens or remote.
We build the agent — orchestration, RAG pipeline, tool calls, Greek/English language layer — wire it into your systems, and add guardrails and human handoff. You test against real cases before it faces a customer.
The agent goes into production on real volume. We monitor, run evals, tune on real Greek-language data, and hand you the numbers and the code.
Front desks buried in inbound calls. A Greek-speaking AI receptionist that answers, books, and follows up — the exact category Callen AI serves in production today.
Every missed call is a lost job. Voice and intake agents that capture the demand your team cannot pick up in time — in the language your customers call in.
You run Softone, Entersoft, Epsilon Net, or Atlantis and want AI on top of it — agents that pull answers from it and push clean data back in, without ripping anything out.
You are building an AI-powered product and want the agent layer — RAG, tool use, voice — engineered by a team that has shipped its own, not learned on your runway.
Best for: businesses that want working proof on one workflow before scaling
Best for: SMEs putting an agent on a core operation across their stack
Best for: companies making AI agents a core capability, not a one-off
Every engagement is fixed-scope and quoted before we start. Model, telephony, and cloud accounts are opened in your name and billed to you — full transparency, zero lock-in, and the source code is yours from day one.
WeAreFabbrik is a senior boutique software studio — an Estonian OÜ operating since 2018, with the engineering team based in Athens. We are not an AI-strategy consultancy: we build and run production AI. Our own product, Callen AI, is a live AI voice receptionist handling real calls and real bookings — which means when we scope your agent, we are estimating from experience, not selling a workshop.
Curious how our own agent is engineered? Read the Callen AI voice pipeline architecture deep dive or the Callen AI case study.
Yes. Text agents converse and write in Greek and English interchangeably. For voice agents we use modern Greek speech-to-text and natural Greek text-to-speech voices, with the LLM layer handling both languages — callers can even switch mid-conversation. We test against real Greek-language transcripts before going live.
Integration with the Greek systems landscape — Softone (Soft1), Entersoft, Epsilon Net, Atlantis ERP, and myDATA-aware document flows — is exactly the kind of work we scope in week one. Where an official API exists we use it; where it does not, we tell you honestly what is feasible before you spend anything.
Yes — the engineering team, including the founder, is based in Athens, so scoping and working sessions can happen in person and in your timezone. The company is registered in Estonia (WeAreFabbrik OÜ), which keeps EU contracting and VAT invoicing clean for Greek and EU clients alike.
Python and TypeScript pipelines; GPT-4-class and Claude-class LLMs through their official APIs; RAG with embeddings and vector databases such as pgvector or Qdrant; LangChain-style orchestration or lean custom orchestration depending on the case; Twilio and ElevenLabs for voice. Everything runs on your accounts and your cloud — you own the stack.
A platform gives you a configurable bot inside someone else’s product, priced per seat or per conversation, limited to the integrations they chose to build. We ship custom software you own: it integrates with your exact systems, speaks your customers’ language, evolves with your roadmap, and has no platform fee attached forever.
An agent pilot starts at €6,000 fixed and goes live in two to four weeks. Fuller builds — voice agents, multi-agent workflows, deep ERP integration — run €15,000 and up. Every engagement is quoted as a fixed scope before we start; there is no open-ended retainer.
You do — completely. The source code, the model and telephony accounts, the logs, and the data all live in your name. The handoff is documented, and nothing depends on us to keep running. GDPR compliance is designed in from the start, not patched on.
Tell us the workflow eating your team’s time — the calls, the intake, the document triage — and we’ll tell you honestly whether an AI agent can do it, what it takes, and what it saves. In Greek or English.
info@wearefabbrik.com · Athens · Tallinn