Add rugguard-langgraph-agent to Finance & Fintech

[dbe006]

What it is

A StateGraph node that calls a pre-trade rug-check before a crypto
trading agent buys a token. Returns block | caution | allow with
risk score, confidence, and max suggested exposure. Conservative-
by-default routing on errors.

Why it might fit awesome-LangGraph

• Drop-in make_pretrade_check_node(...) factory, used as a regular
  StateGraph node with conditional edges.
• Open source on PyPI: https://pypi.org/project/rugguard-langgraph-agent/
• Pay-per-call via x402 (USDC on Base), no API key, no signup.
• Active maintenance: v0.2.0 shipped 2026-05-17.

Background

Writeup with integration code:
https://dev.to/dbe006/a-pre-trade-firewall-for-autonomous-crypto-agents-pay-per-call-no-api-key-1dm

Repo + README: https://github.com/dbe006/rugguard-langgraph-agent

Checklist (per CONTRIBUTING.md)

• Active maintenance
• Uses LangGraph (StateGraph node + conditional edges)
• Description under 200 chars
• Working links and badges
• No duplicates

[github-actions]

This pull request has been marked as stale due to inactivity. If work is still active, leave a comment or push an update and it will stay open.

[dbe006]

Still active, the project is live at rugguard.redfleet.fr and the listing is still relevant. Happy to update the PR if any changes are needed.