@cryptyx/langchain-tools

LangChain DynamicStructuredTool wrappers over the CRYPTYX x402 API. Bind institutional-grade crypto conviction to any LangChain agent in three lines.

npm install @cryptyx/langchain-tools @cryptyx/x402-client @cryptyx/tool-schemas @langchain/core

Quickstart

import { ChatOpenAI } from '@langchain/openai';
import { AgentExecutor, createOpenAIFunctionsAgent } from 'langchain/agents';
import { ChatPromptTemplate } from '@langchain/core/prompts';
import { Cryptyx } from '@cryptyx/x402-client';
import { cryptyxTools } from '@cryptyx/langchain-tools';

const cx = new Cryptyx({
  wallet: process.env.WALLET_PRIVATE_KEY!,
  network: 'base',
  maxSpend: 2.0,
  onPay: (r) => console.log(`Paid $${r.priceUsd} → ${r.route}`),
});

const tools = cryptyxTools(cx);   // 15 LangChain tools ready

const prompt = ChatPromptTemplate.fromMessages([
  ['system', 'You are a crypto quant analyst. Use CRYPTYX tools to ground every claim in institutional evidence. Never recommend a trade without walk-forward-validated Sharpe > 0.3.'],
  ['placeholder', '{chat_history}'],
  ['human', '{input}'],
  ['placeholder', '{agent_scratchpad}'],
]);

const llm = new ChatOpenAI({ model: 'gpt-4o' });
const agent = await createOpenAIFunctionsAgent({ llm, tools, prompt });
const executor = new AgentExecutor({ agent, tools });

const result = await executor.invoke({
  input: 'What is the strongest institutional-grade trigger firing on BTC or ETH right now, and should I act on it?',
});
console.log(result.output);

Tool coverage

15 tools covering the canonical agent workflow. See @cryptyx/tool-schemas for the full catalog.

Narrow toolbelts

Bind only the tools you need:

import { cryptyxTool } from '@cryptyx/langchain-tools';

const tools = [
  cryptyxTool(cx, 'get_agent_context'),
  cryptyxTool(cx, 'get_trigger_preset'),
  cryptyxTool(cx, 'get_asset_thesis'),
].filter(Boolean);

License

MIT.