/langchain

LangChain tool bindings for the PayDirect API. Lets LangChain agents create payments, check balances, send payouts, and swap tokens.

Install

npm install @paydirectv2/langchain @langchain/core

Peer deps: @langchain/core >= 0.2.0.

Quick start

import { ChatOpenAI } from "@langchain/openai"
import { createReactAgent } from "@langchain/langgraph/prebuilt"
import { createLangChainTools } from "@paydirectv2/langchain"

const tools = createLangChainTools({
  apiKey: process.env.PAYDIRECT_API_KEY!,
})

const agent = createReactAgent({
  llm: new ChatOpenAI({ model: "gpt-4o" }),
  tools,
})

const result = await agent.invoke({
  messages: [{ role: "user", content: "Tip @creator 5 USDC" }],
})

| Tool | Endpoint | | --------------------- | ------------------------------------ | | create_payment | POST /api/v1/payments | | get_payment | GET /api/v1/payments/:id | | get_wallet_balance | GET /api/v1/wallet/balance | | get_wallet_stats | GET /api/v1/wallet/stats | | send_payout | POST /api/v1/payouts | | get_swap_quote | GET /api/v1/swap/quote | | execute_swap | POST /api/v1/swap | | list_payments | GET /api/v1/payments |

Built on top of @paydirectv2/sdk. For Vercel AI SDK, see @paydirectv2/ai-sdk.

License

MIT