sirenic-agents (TypeScript) — LangChain.js tools for Sirenic

Official French & European company data in your agent, paid per call via x402 (USDC or EURC on Base). No account, no API key — bring a wallet key and a price cap. Without a wallet, every tool still works and returns the payment quote (great for dry runs).

npm install github:sirenic-eu/sirenic-examples#path:/sdk/typescript @langchain/core
# (npm registry publication coming — same package name)

import { sirenicTools } from "sirenic-agents";

const tools = sirenicTools({
  walletKey: process.env.WALLET_KEY,   // your paying wallet (never sent anywhere)
  maxPriceUsd: 0.25,                   // hard cap: quotes above are NEVER signed
});

// Drop into any LangChain.js agent:
const agent = createReactAgent({ llm, tools });

9 tools: search ($0.001), full profile ($0.005), KYB file ($0.15), sanctions screening ($0.02), AMF regulator alerts ($0.01), EU financial authorisations via ESMA ($0.01), the $1 intelligence report, 30-day watchlists ($0.05/target) and a generic sirenic_get covering the whole catalog (prices).

Safety model: payments are EIP-3009 authorizations signed locally by the official @x402/* packages; the price-cap policy filters every quote before signing; errors are never charged (server cancels verified payments on any non-200). Paid responses are Ed25519-signed by the server (verify).