AI AGENT DEVELOPMENT AGENCY

Custom AI Agent Development for Production

We are an AI agent development agency of senior .NET engineers who build custom AI agents like production systems: state, retries, guardrails, and tests before the demo. Our own products, AIBase and Prostir, run on the same foundations.
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Agents that run in production every day, not just in the pitch.

THE DIFFERENCE

An AI agent development company builds custom AI agents that connect your data, tools, and decisions into multi-step work that runs in production, not just a demo. Most agents look sharp in a demo and fall over the first week they meet real users, real data, and real edge cases. We build for that week: state, retries, guardrails, and tests before an agent ever touches your business.

THE PROOF IS OUR OWN PRODUCTS

We do not pitch agents. We ship and run them.

OUR PRODUCT · PRIVATE AI PLATFORM

AIBase

Your AI. Your stack. Your rules.

A private AI platform that runs on-prem or in your cloud, so data never leaves. Bring your own model, role-based agents that mirror your teams, cited answers with paragraph-level access, and multi-agent workflows. Built for finance, healthcare, and enterprise.

On-prem / private cloud BYOM Role-based agents Cited RAG Multi-agent
Visit aibase.fr ↗
OUR PRODUCT · NO-CODE MCP AGENT BUILDER

Prostir

Build an AI agent only you can make.

A no-code platform for building and publishing AI agents. A non-technical creator adds their files, writes the rules in plain words, and publishes a hosted MCP address that works in ChatGPT, Claude, and on the web, with paid access through Stripe. We hold the engineering.

No-code Hosted MCP Agents / Skills / Stores Stripe access Orleans
Visit prostir.build ↗
WHAT "PRODUCTION" ACTUALLY MEANS

Custom AI agents: the parts a demo skips.

Start your project
01

Tested like software

MCAF keeps automated tests, review, and security checks tied to the agent, so a model change cannot quietly break it.

02

Guardrails before launch

Input validation, tool permissions, and data boundaries defined before the agent runs, not patched after an incident.

03

It knows when to stop

Every agent has an escalation path. On a boundary or low confidence, a person takes over on purpose, not by accident.

04

Built for load

Orleans and a stateful backend, so the agent holds up under real traffic instead of a single happy-path demo.

05

Answers you can trace

RAG with citations and access rules, so every answer points back to an approved source your team can check.

06

You own it

The code, the prompts, and the architecture, documented and handed over. No black box and no lock-in.

HOW WE WORK

Our AI agent development process, step by step.

Get Started
STEP 1

Deep dive

We map the workflow, the systems it touches, the risks, and what success looks like before writing agent code. The first question is whether an agent should exist at all.

STEP 2

Prototype

We build against representative inputs and the awkward edge cases. The goal is to expose what a polished demo would hide, while the cost of changing direction is still low.

STEP 3

Build

Prompts, logic, retrieval, tools, and guardrails designed around the workflow’s real boundaries, on .NET, Orleans, and the Microsoft Agent Framework.

step 4

Integrate & harden

We connect the agent to approved tools, data, and escalation paths, with logs your team can inspect. MCAF keeps automated tests and security checks tied to the code.

step 5

Run & evolve

After launch we monitor behavior, tune prompts and sources, and run regression checks so a new model version or data source cannot quietly change how the agent acts.

Richard Mueller
Founder, Restaurant Service Startup

It took the Managed Code team five months to build the application, as initially planned. The app that Managed Code developed runs smoothly, is highly rated by users, and helps the client generate a steady profit. The team was highly communicative, and internal stakeholders were particularly impressed with Managed Code's expertise.

(01)
Vitalii Drach
CEO, RD2

Their professionalism and commitment to delivering high-quality solutions made the collaboration highly successful.
Thanks to Managed Code's efforts, the AI assistant significantly improved the client's ability to serve new and existing clients, resulting in increased customer satisfaction and higher sales. The team was responsive, adaptable, and committed to excellence, ensuring a successful collaboration

(02)
Christopher Mecham
CTO, Legal Firm

We're impressed by their expertise and their client-focused work.
With an excellent workflow and transparent communication on Google Meet, email, and WhatsApp, Managed Code delivered just what the client wanted. They effortlessly focused on the client's needs by being client focused, as well.

(03)
TECH STACK

The stack we build AI agents on: Microsoft Agent Framework, Semantic Kernel, and MCP for orchestration; .NET and Orleans for state and scale; Azure OpenAI, OpenAI, Claude, Mistral, and Gemini for models, on Azure, AWS, and Google Cloud.

Microsoft Agent Framework

Create powerful AI agents using .NET and Azure.

Azure AI Services

Cloud platform for deploying and scaling AI solutions.

OpenAI ChatGPT

State-of-the-art language models for conversation and content.

Claude

AI assistant focused on reasoning, safety, and long-context tasks.

Mistral AI

Open-source LLMs optimized for speed and efficiency.

Copilot

AI-powered assistance for coding, writing, and productivity.

Gemini

AI-powered assistance for research, coding, and creativity.

Orleans

Framework for building distributed, scalable applications.

C#

 Versatile language for robust, high-performance software.

ASP.NET Core

Cross-platform framework for modern web apps and APIs.

Node.js

Fast, event-driven runtime for scalable server-side apps.

Azure

Cloud platform for hosting, scaling, and securing applications.

.NET

Mature ecosystem for enterprise-grade applications.

.MongoDB

Flexible NoSQL database for fast, scalable data handling

NestJS

Progressive Node.js framework for efficient, scalable backends.

React

Flexible library for building fast, interactive UIs.

Vue.js

Lightweight framework for simple and scalable apps.

Angular

Robust solution for enterprise-grade web applications.

Blazor

.NET-powered framework for rich client-side apps.

Blazor

Build interactive web apps with C# and .NET.

MAUI

 Cross-platform framework for native mobile and desktop apps.

Android

 Native development for the world’s most used mobile OS.

Flutter

Create fast, cross-platform apps with one codebase.

iOS

Native apps tailored for Apple’s ecosystem.

React Native

Build mobile apps with React for iOS and Android.

Uno Platform

One codebase. Powered by C# and XAML.

Azure

Cloud platform for hosting, scaling, and securing applications.

Amazon Web Services

Leading cloud provider with global infrastructure and services.

Kubernetes

Orchestration system for scaling and managing containers.

Google Cloud

Cloud services for data, AI, and global-scale applications.

Docker

Container platform for fast, portable, and consistent deployments.

CI/CD

Continuous integration and delivery pipelines for faster, safer releases.

Figma

Collaborative platform for UI/UX design and prototyping.

JavaScript

Core language for dynamic, interactive web apps.

HTML5

Standard markup for modern, responsive websites.

Hotjar

Analytics and heatmaps to understand user behavior.

Git

Version control system for efficient collaboration.

CSS3

Styling language for flexible, adaptive web design.

Figma + Auto Layout + Variables

Core platform for scalable design systems and interactive prototypes.

FigJam

Tool for mapping user journeys, brainstorming, and wireframing.

ZeroHeight / Notion

Platforms for structured design documentation and collaboration.

Maze / Useberry

Tools for usability testing, feedback collection, and design validation.

FAQ

20 answers before the first call.

Quick answers to what comes up on every first call — about AI, speed, scope, and how we work.

What types of AI agents does your AI agent development agency build?

Arrow

Workflow automation, knowledge retrieval (RAG), and decision-support agents. Each is built around your data access, business rules, review path, and escalation rules, not a demo that works once.

What is the difference between an AI agent and a chatbot?

Arrow

A chatbot answers inside a conversation. An agent connects data, tools, and decisions into multi-step work. The real difference is the boundary: what it can do, what it must cite, and when it hands off to a person.

How much does it cost to build a custom AI agent?

Arrow

Cost tracks scope: how many workflows, how much data access, how many integrations, and how strict the compliance is. Every engagement starts with a scoping session that puts a real number and timeline on the table before any build.

How long does it take to build an AI agent?

Arrow

A focused agent usually ships in a few weeks. Larger platforms run as weekly sprints with a working build every Friday, so you see progress against the plan instead of guessing.

Can you integrate AI agents with our existing systems?

Arrow

Yes. CRMs, ERPs, databases, internal APIs, communication platforms. Every connection gets retry logic, rate limits, structured logging, and a handoff path your team can operate.

Do you build AI agents in .NET and C#?

Arrow

Yes. .NET and C# on the backend, Microsoft Orleans for stateful load, and the Microsoft Agent Framework for orchestration. It is the same stack we built AIBase and Prostir on.

Which language models do you support?

Arrow

Azure OpenAI, OpenAI, Claude, Mistral, and Gemini. We pick the model per task and keep the design model-agnostic, so swapping providers later does not mean a rewrite.

What is RAG and do we need it?

Arrow

Retrieval-augmented generation connects a model to your approved knowledge so answers come from your sources, with citations. You need it whenever an agent must be right about your data, not just fluent.

What is the Model Context Protocol (MCP) and do we need it?

Arrow

MCP is a standard way to give an agent tools and data through a controlled gateway. We build MCP backends ourselves in Prostir, so agents reach your systems through one auditable layer instead of scattered custom glue.

Can we run AI agents on our own infrastructure or private cloud?

Arrow

Yes. We deploy into your Azure, AWS, or Google Cloud tenant, and can keep data and model calls inside your boundary for regulated or private workloads.

How do you handle data security and compliance?

Arrow

Security is part of the architecture from the first sprint, not an audit at the end. We define where data lives, which providers can process it, what gets logged, and which controls apply. Regulated work gets explicit guardrails before build starts.

What happens when an AI agent gives a wrong answer?

Arrow

Guardrails catch known failure modes, confidence signals flag the uncertain ones, and an escalation path routes the rest to a person. Every answer is traceable, so you can see why the agent did what it did.

How do you test AI agents before production?

Arrow

We test against representative inputs, ambiguous cases, and the exceptions a polished demo hides. MCAF keeps automated tests, review, and security checks tied to the code so results stay stable.

How do you stop an agent from breaking after a model update?

Arrow

Regression tests and evaluation runs catch behavior drift, so a new model version or data source has to pass the same checks before it ships. Monitoring flags changes in production, not weeks later.

Can AI agents replace employees?

Arrow

No. Agents remove repeatable work like extraction, routing, scoring, and status updates. Your team keeps exceptions, relationships, final decisions, and accountability. The goal is throughput, not blind replacement.

Can we start with a small pilot before a full build?

Arrow

Yes. A focused prototype tests one workflow against real inputs first. You evaluate performance, edge cases, and operational fit before deciding whether the full production scope is worth it.

Do I need technical knowledge to work with you?

Arrow

No. You provide the business context: which workflow matters, what rules apply, and what success looks like. We translate that into an agent design and explain the technical choices in plain language.

What happens after the AI agent is deployed?

Arrow

Support covers monitoring, tuning, issue resolution, and documentation. After that you either scope the next phase with us or take over with the code, decisions, and operating notes already transferred.

Do we own the code and the intellectual property?

Arrow

You own 100% of the code and the IP. We sign the assignment on day one, hand over the repository, and document the architecture so whoever takes it next can actually use it.

Why choose an EU-based AI agent development company?

Arrow

We are based in France, so data residency, GDPR, and EU working hours are the default, not an add-on. For teams that cannot ship a black box, that matters before the first line of code.

START HERE

Bring us the agent that keeps braking

Tell us which workflow eats time, creates errors, or keeps landing back in a human review queue. We map the data, tools, risks, and escalation path before recommending anything.

Book a 15-min call
Book a 15-min call
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