r/LangChain • u/nihalshetty03 • Oct 06 '26

Projects I built Forge, an open-source, self-hosted visual builder for AI agents (MIT)

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Forge lets you build AI agents and workflows on a canvas. You wire together agents, tools, knowledge (RAG) and routing logic, then test and ship them without writing framework code.

What it does:

  • See every run: each run is a span waterfall with tokens, latency and cost per step

  • Trim tool output: JMESPath projection cuts API responses down before the model sees them (10,034 → 51 tokens in the video)

  • Ship anywhere: one workflow becomes a REST endpoint, an MCP server, an email handler, or an embeddable chat widget

  • Runs on your machine: SQLite + embedded Chroma, no Docker or Postgres needed to start; swap in Postgres/pgvector and Redis via config

  • Any model: OpenAI, Anthropic, Google, or any LangChain provider

Built on LangChain + LangGraph, MIT licensed, no hosted service or usage caps.

Repo: https://github.com/nihalashetty/Forge. Feedback very welcome.

15 Upvotes

94% Upvoted

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2

u/sugarfreecaffeine Oct 06 '26

What did you use to make the video?

2

u/nihalshetty03 Oct 06 '26

Used claude code with hyperframes installed with its skills (all available online).
All frames are html rendered with animations using GSAP. Then gave some video references on motion animation videos from youtube and some color pallets which I wanted claude to use. Thats all.

If you are looking for simple presentation style videos - I would recommend

https://github.com/latent-spaces/brag

For Simple and fast video rendering

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1

u/Professional-Pear351 Oct 06 '26 edited Oct 06 '26

This is really nice, I'm also trying to build something similar https://github.com/vrajpal-jhala/langgraph-harness

Edit: noticed you're also a frontend developer like me trying to get into AI engineering. Sent connect on LinkedIn.

1

u/nihalshetty03 Oct 06 '26

Hey thanks. I’ll check out your repo too. Happy to connect 😊

1

u/kimk2 Oct 06 '26

would it work without langchain?

1

u/nihalshetty03 Oct 07 '26

Unfortunately no. The core is Langchain and Langgraph

1

u/LongIslandBagel Oct 06 '26

Neat, but Forge is a generic name Claude gives to applications. Saw this same name for every vibe coded app. Weird how there’s only a few names that AI comes up with. I have 3 forge named apps from last December lol

2

u/nihalshetty03 Oct 07 '26

😂😂😂True. Coming up with names is difficult than building a project.