Use Agent Data Tools with the Vercel AI SDK

The npm package agent-data-tools turns any of the tools on this service into AI SDK tools. Name the few tools a task needs; the model calls them and gets each tool's JSON answer.

Install

npm install ai agent-data-tools

Give tools to a model

import { generateText, isStepCount } from 'ai';
import { agentDataTools } from 'agent-data-tools/ai-sdk';

const { text } = await generateText({
  model: 'anthropic/claude-haiku-5.5',
  tools: await agentDataTools(['pdf_text', 'extract', 'weather']),
  stopWhen: isStepCount(5),
  prompt: 'Read https://bitcoin.org/bitcoin.pdf and tell me in three sentences what problem it solves.',
});

console.log(text);

agentDataTools(names, options) reads each tool's description and input schema from https://tools.funwords.eu/openapi.json. Names are the tool names (pdf_text, weather, price_token) or paths (/pdf/text). The full list with prices is at https://tools.funwords.eu/tools.

Paying

Without any setup the first successful calls are free. After that a call that is not paid returns its price and a link to the model as the tool result, so a generation does not fail.

Prepaid key, by card from $1 at https://tools.funwords.eu/credits:

const tools = await agentDataTools(['pdf_text'], { apiKey: process.env.ADT_API_KEY });

USDC per call from your own wallet over x402, with no account:

import { wrapFetchWithPayment, x402Client } from '@x402/fetch';
import { registerExactEvmScheme } from '@x402/evm/exact/client';
import { privateKeyToAccount } from 'viem/accounts';

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.WALLET_KEY) });
const tools = await agentDataTools(['pdf_text'], { fetch: wrapFetchWithPayment(fetch, client) });

Failed calls are never charged. Most tools cost $0.01 a call or less.

The same tools in an MCP client, paid from a wallet

For Claude Desktop, Cursor, Cline and other MCP clients the package is also a local MCP server. Set AGENT_DATA_TOOLS_WALLET_KEY to the private key of a wallet that holds USDC on Base and each call after the free ones is paid from it:

{
  "mcpServers": {
    "agent-data-tools": {
      "command": "npx",
      "args": ["-y", "agent-data-tools", "mcp"],
      "env": { "AGENT_DATA_TOOLS_WALLET_KEY": "0x..." }
    }
  }
}

It pays at most $0.10 a call and $1 a day unless AGENT_DATA_TOOLS_MAX_USD and AGENT_DATA_TOOLS_DAILY_USD say otherwise. The key is read from the environment only, signs nothing but the exact USDC amount the service quoted, and is never written or sent. Use a wallet that holds only what you are willing to spend. Without the variable the server uses the free calls or a prepaid key (AGENT_DATA_TOOLS_KEY).

Package: https://www.npmjs.com/package/agent-data-tools

Agent Data Tools · All tools and prices · Guides · Card credits