Anyone building an “Agent platform” with LangChain + LangGraph or other framework?
LangGraph Platform Pricing and Auth
Videos
I’m trying to design an Agent middle layer inside my company using LangChain + LangGraph. The idea is:
-
One shared platform with core abilities (RAG, tool orchestration, workflows).
-
Different teams plug in their own agents for use cases (customer support, report generation, SOP tasks, etc.).
Basically: a reusable Agent infra instead of one-off agents.
Has anyone here tried something similar? Curious about:
-
What worked / didn’t work in your setup?
-
How you kept it flexible enough for multiple business scenarios?
-
Any best practices or anti-patterns with LangGraph?
The pricing for the LangGraph Platform is pretty unclear. I’m confused about a couple of things:
-
How does authentication work with the Dev plan when we’re using the self-hosted Lite option? Can we still use the
'@auth'decorators and plug in something like Supabase Auth? If not, how are we expected to handle auth on the server? And if we can’t apply custom auth, what’s the point of that hosting option? -
On the Plus plan, it says “Includes 1 free Dev deployment with usage included.” Does that mean we get 100k node executions for free and aren’t charged for the uptime of that deployment? Or just the node executions? Also, if this is still considered a Dev deployment under the Plus plan, do we get access to custom auth there, or are we back to the same limitation as point 1?
If anyone has experience deploying with LangGraph, I’d appreciate some clarification. And if someone from the LangChain team sees this—please consider revisiting the pricing and plan descriptions. It’s difficult to understand what we’re actually getting.
EDIT: I've started building an open-source alternative to LangGraph Platform that addresses these exact pricing and auth concerns.
Agent Protocol Server: https://github.com/ibbybuilds/agent-protocol-server
What it solves:
-
✅ Self-hosted (no per-node pricing)
-
✅ Custom authentication (Supabase Auth, JWT, OAuth, etc.)
-
✅ PostgreSQL persistence (no vendor lock-in)
-
✅ Backward compatible with LangGraph Client SDK
-
✅ Agent Protocol compliance
Why I started this:
-
LangGraph Platform pricing is 10x what's reasonable for scale
-
Self-hosted "Lite" option has no custom auth (what's the point?)
-
Community needs a truly open-source deployment solution
Current status: MVP ready, working on production hardening. Looking for early adopters to help shape the roadmap.
This gives you full control over your infrastructure and costs while maintaining compatibility with LangGraph workflows.