Free MCP Tools for AI Agents

53 pay-per-call security & enrichment tools. Claude, Cursor, Windsurf — all supported. First call completely free.

Connect in 30 seconds

{
  "mcpServers": {
    "x402-registry": {
      "type": "sse",
      "url": "https://etherealgoodsco.store/mcp/sse"
    }
  }
}

Free Tools Include:

• Smart Contract Audit — screen any EVM contract for 8 vulnerability flags
• Crypto Price Feed — live prices from CoinGecko (BTC, ETH, SOL...)
• WHOIS Lookup — structured domain WHOIS data
• Threat Intelligence — phishing domain detection via cert transparency
• OSINT Recon — DNS + WHOIS + Geo + Threat in one call
• DeFi Scanner — complete DeFi safety bundle
• Full Due Diligence — enterprise-grade project audit
• ...and 46 more

How it works: Your first API call is free — just send X-Credit-Wallet header. Subsequent calls pay via HTTP 402 + USDC on Base. No signup, no API keys, no KYC.

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