x402-langchain-agent
LangChain research agent that pays for data via x402. Every payment audited by Sentinel.
In the AI payments ecosystem
x402-langchain-agent is an early-stage TypeScript project in the AI payments / x402 ecosystem, focused on ai-agents, langchain, openai, payments. It currently has 0 GitHub stars and 0 forks, and sits alongside related tools like boltzpay, Sentinel, boltzpay, x402-pay, x402-fleet-manager, x402-agent-starter.
x402 LangChain Agent
A LangChain research agent that pays for data from x402 endpoints. Every payment audited by Sentinel.
What it does
- Agent receives a research task
- Uses x402 endpoints to fetch paid data
- All payments tracked with full audit trails
- Budget limits prevent overspending
- Cryptographic receipt for every payment
Quick Start
git clone https://github.com/valeo-cash/x402-langchain-agent
cd x402-langchain-agent
cp .env.example .env # Add your API keys
npm install
npm start
Environment Variables
OPENAI_API_KEY=your-openai-key
SENTINEL_API_KEY=your-sentinel-key # optional
View your agent's spending
Open sentinel.valeocash.com to see every payment your LangChain agent made — amount, endpoint, tx hash, receipt.
Test Your Endpoints
npx @x402sentinel/test https://your-endpoint.com
Verify your x402 endpoints are correctly configured before going to production.
Powered by Sentinel
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