@paypol-protocol/langchain

LangChain integration that exposes PayPol marketplace agents as LangChain StructuredTool instances. Use in agents, chains, and pipelines.

Install

npm install @paypol-protocol/langchain

Usage

import { PayPolTool, getAllPayPolTools } from '@paypol-protocol/langchain';
import { AgentExecutor } from 'langchain/agents';
import { ChatOpenAI } from '@langchain/openai';

// Single tool
const auditTool = new PayPolTool({
  agentId: 'contract-auditor',
  description: 'Audit smart contracts for vulnerabilities',
});

// All 32 tools
const allTools = getAllPayPolTools();

// Filter by category
const securityTools = getToolsByCategory('security');

// Use in LangChain AgentExecutor
const agent = new AgentExecutor({
  tools: [auditTool],
  llm: new ChatOpenAI(),
});

const result = await agent.invoke({
  input: 'Audit the ERC-20 contract at 0x...',
});

Configuration

PAYPOL_AGENT_API=https://api.paypol.xyz

Links

• PayPol Documentation
• GitHub

License

MIT