YOUR LANGCHAIN APPLICATIONS

LangChain to orchestrate AI applications in production

Autonomous agents, RAG, prompt chains, business tool integration: we build AI systems that reason and act.

LangChain stack built for results

What you get in the first weeks

  • RAG architecture tuned to your data
  • Agents equipped with real business tools
  • Chain observability in production
  • Cost and latency under control

They trust us

Le Monde logoL'Obs logoRexel logoCourrier logoTelerama logoL'Equipe logoLe Temps logoClutchain logoLe Monde logoL'Obs logoRexel logoCourrier logoTelerama logoL'Equipe logoLe Temps logoClutchain logo

LangChain, the framework that turns an LLM into an intelligent system

LangChain orchestrates the building blocks that make LLMs useful in production: prompt chaining, autonomous agents with tool access, Retrieval Augmented Generation on your internal data, vector database integration, and LangSmith monitoring.

At Inprogress, we use LangChain to build business chatbots, augmented search engines and AI agents in production. We master inference costs, data security and scalability — the issues that separate a prototype from a real product.

Module: 01

The benefits of LangChain

01

Complex chain orchestration

Prompt chaining, conditional decisions, conversational memory: your use cases go beyond simple API calls without rebuilding infrastructure.

02

RAG on your internal data

Connection to your CRM, ERP, docs and business databases with vector indexing. AI answers are grounded in your context, not invented.

03

Agents with business tools

LangChain agents call your APIs, query your data, trigger actions. AI becomes an actor in the system, not just a responder.

Module: 03

Why Inprogress?

Prioritization

We help you decide quickly what should be built now and what should wait.

Quality

We enforce technical quality to prevent slowdowns and avoid product debt.

Speed

A product should move continuously, with a delivery rhythm the whole team can trust.

Module: 04

Frequently asked questions

We start with a fast audit of product context, codebase and business priorities.

Then we run a shared backlog with short iterations and frequent deliveries.

Yes. We audit the current stack, fix critical issues and restore delivery flow.

The objective is to stabilize quickly without freezing your roadmap.

Yes. We act as an extension of your team with transparent technical steering.

Decisions, backlog and rituals are shared end to end.

When the use case goes beyond a simple GPT call: need for conversational memory, external tool use, multi-step reasoning, or search across your data.

For simple cases, a direct OpenAI API call is often enough. We help you decide without over-engineering.

Quality of vector indexing, adapted chunking strategies, result reranking, mandatory citations in responses, continuous evaluation with LangSmith.

A reliable RAG is built iteratively, measuring relevance on real cases.

LangSmith traces every chain execution: prompts, tool calls, latency, costs, response quality. We couple it with our own business metrics.

Without serious observability, a LangChain application quickly becomes a black box that is impossible to debug.

Let’s talk about your project

A web or mobile application to launch, or a product to accelerate?
Book 30 minutes to align on the right next step, without wasting cycles.
See our work