LangChain & LangGraph Development
Orchestration frameworks for agents that need real control flow.
LangChain gives you the building blocks and LangGraph gives you explicit state machines over them. We use them where a workflow needs branching, looping, retries and resumable state, and we leave them out where a simpler integration would do the job.
Tools we work in
- LangChain
- LangGraph
- LangSmith
- Python
- TypeScript
- Postgres
- OpenAI
Works well with
Scope
What this covers
The specific work included when you engage us for this service.
- LangGraph state machines for multi-step and multi-agent control flow
- Tool and chain composition with typed inputs and outputs
- Checkpointing so long-running agent runs survive a crash and resume
- Retrieval chains with reranking, filtering and citation
- Observability through LangSmith or an equivalent tracing layer
- Cost and latency tracing per node to find the expensive steps
What you receive
- 01A graph-structured agent or chain with explicit states and transitions
- 02Trace-based observability so every run can be replayed and debugged
- 03Test coverage for the nodes that make decisions
Questions
LangChain & LangGraph Development, answered
Do we need LangChain at all, or is it overhead?
For a single prompt call, it is overhead, a direct API call is clearer. It earns its place when you have branching logic, retrieval, tool calls, retries and state that must survive a restart. We say so when it is not needed, because unnecessary abstraction is a maintenance cost you pay forever.
Python or TypeScript?
Python if the surrounding work is data, retrieval or model experimentation. TypeScript if the agent lives inside a web product you already run, because keeping one language across the stack removes a whole category of deployment friction.
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Tell us where the manual work is
A 30-minute call. We map the process, tell you what we would automate or build first, and what it costs. No retainer before you agree the scope.
- No retainer before scope is agreed
- Written plan you can act on alone
- Worldwide delivery, on your hours