{
  "markdown": "# Domain Intelligence API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://domain-intelligence.api.klymax402.com/mcp)\n[![x402](https://img.shields.io/badge/payments-x402-6E56CF)](https://x402.org)\n[![License: MIT](https://img.shields.io/badge/license-MIT-green)](LICENSE)\n\nDomain intelligence in one call: WHOIS, DNS records, SSL certificate, domain age. Essential for due diligence and security audits. Pay-per-call via [x402](https://x402.org) (USDC on Base L2) -- no API key, no signup, no rate-limit wall.\n\nPart of the [klymax402](https://klymax402.com) marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.\n\n## Quickstart -- MCP\n\nAdd to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):\n\n```json\n{\n  \"mcpServers\": {\n    \"domain-intelligence\": {\n      \"url\": \"https://domain-intelligence.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl \"https://domain-intelligence.api.klymax402.com/api/lookup?domain=...\"\n# -> 402 Payment Required, with an x402 payment challenge in the response body\n```\n\nAny x402-aware client ([`@x402/fetch`](https://www.npmjs.com/package/@x402/fetch), [`x402-agent-tools`](https://www.npmjs.com/package/x402-agent-tools), ATXP) handles the 402 -> sign -> retry cycle automatically.\n\n## Tools\n\n| Tool | Method | Path | Price | Description |\n|---|---|---|---|---|\n| `domain_lookup_intelligence` | GET | `/api/lookup` | $0.012 | Get comprehensive domain intelligence (WHOIS + DNS + SSL) |\n| `domain_lookup_intelligence` | POST | `/api/lookup` | $0.012 | Get comprehensive domain intelligence (WHOIS + DNS + SSL) (POST variant) |\n\n### `domain_lookup_intelligence`\n\nUse this when you need comprehensive domain intelligence -- WHOIS, DNS, and SSL data in a single call. Returns structured JSON with full domain profile.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `domain` | string | yes | Domain to lookup (e.g. example.com) |\n\nExample response:\n\n```json\n{\"whois\":{\"registrar\":\"Cloudflare\",\"createdDate\":\"2010-01-15\",\"expiryDate\":\"2027-01-15\",\"nameservers\":[\"ns1.cloudflare.com\"]},\"dns\":{\"a\":[\"104.26.10.1\"],\"mx\":[{\"priority\":10,\"exchange\":\"mx.example.com\"}]},\"ssl\":{\"issuer\":\"Let's Encrypt\",\"daysRemaining\":45},\"domainAge\":5932}\n```\n\n**When to use**: domain purchases, security audits, phishing investigations, or due diligence on vendors. Essential for checking domain legitimacy, SSL health, and DNS configuration.\n\n**Not for**: company data (use `company_enrich_from_domain`), IP geolocation (use `ip_lookup_geolocation`), website content (use `web_scrape_to_markdown`), email deliverability (use `email_audit_deliverability`).\n\n### `domain_lookup_intelligence`\n\nUse this when you need comprehensive domain intelligence -- WHOIS, DNS, and SSL data in a single call. Returns structured JSON with full domain profile. POST variant of domain_lookup_intelligence -- same params passed as JSON body instead of query string.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `domain` | string | yes | Domain to lookup (e.g. example.com) |\n\nExample response:\n\n```json\n{\"whois\":{\"registrar\":\"Cloudflare\",\"createdDate\":\"2010-01-15\",\"expiryDate\":\"2027-01-15\",\"nameservers\":[\"ns1.cloudflare.com\"]},\"dns\":{\"a\":[\"104.26.10.1\"],\"mx\":[{\"priority\":10,\"exchange\":\"mx.example.com\"}]},\"ssl\":{\"issuer\":\"Let's Encrypt\",\"daysRemaining\":45},\"domainAge\":5932}\n```\n\n**When to use**: domain purchases, security audits, phishing investigations, or due diligence on vendors. Essential for checking domain legitimacy, SSL health, and DNS configuration.\n\n**Not for**: company data (use `company_enrich_from_domain`), IP geolocation (use `ip_lookup_geolocation`), website content (use `web_scrape_to_markdown`), email deliverability (use `email_audit_deliverability`).\n\n## Example agent prompts\n\n- \"Comprehensive domain intelligence -- WHOIS, DNS, and SSL data in a single call\"\n- \"Comprehensive domain intelligence -- WHOIS, DNS, and SSL data in a single call\"\n\n## Payment\n\n- Protocol: [x402](https://x402.org) -- HTTP-native pay-per-call, no signup, no API key\n- Network: Base L2 (`eip155:8453`)\n- Asset: USDC\n- Facilitator: Coinbase CDP (primary), PayAI (fallback)\n- Also reachable via [ATXP](https://atxp.ai) (OAuth-wrapped x402, RFC 9728 protected-resource metadata)\n\n## Part of klymax402\n\n100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.\n\n- Catalog: https://klymax402.com/llms.txt\n- Full API reference: https://klymax402.com/llms-full.txt\n- Live stats: https://klymax402.com/stats\n\n## License\n\nMIT\n",
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}