{
  "markdown": "# Email Verification API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://email-verification.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\nReal-time email verification API. Syntax, MX, disposable detection, role-based flags, quality score 0-100. Built for agent outreach pipelines. 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    \"email-verification\": {\n      \"url\": \"https://email-verification.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl -X POST \"https://email-verification.api.klymax402.com/api/verify\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"email\":\"user@example.com\"}'\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| `email_verify_address` | POST | `/api/verify` | $0.005 | Verify a single email address |\n| `email_verify_batch` | POST | `/api/verify/batch` | $0.03 | Verify up to 100 email addresses in batch |\n\n### `email_verify_address`\n\nVerify email deliverability in real-time. Alternative to Hunter email-verifier at 15x lower cost. Returns a structured JSON report with syntax, MX, disposable detection, role-based flags, and quality score 0-100.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `email` | string | yes | Email address to verify (e.g. user@example.com) |\n\nExample response:\n\n```json\n{\"valid\":true,\"syntax\":true,\"mx\":true,\"disposable\":false,\"role\":false,\"free\":true,\"score\":85,\"email\":\"john@gmail.com\"}\n```\n\n**When to use**: sending outreach emails, adding contacts to CRM, or processing signups. Essential for verifying email deliverability, cleaning email lists, detecting fake registrations, and qualifying leads. Drop-in replacement for Hunter email verification.\n\n**Not for**: finding emails (use `email_find_by_name`), person data (use `person_enrich_from_email`), domain deliverability audit (SPF/DKIM/DMARC) (use `email_audit_deliverability`).\n\n### `email_verify_batch`\n\nUse this when you need to validate multiple email addresses at once (up to 100). Returns a JSON array of verification results plus summary counts.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `emails` | array | yes | Array of email addresses (max 100) |\n\nExample response:\n\n```json\n{\"results\":[{\"email\":\"a@test.com\",\"valid\":true,\"score\":90},{\"email\":\"b@mailinator.com\",\"valid\":false,\"score\":10}],\"summary\":{\"total\":2,\"valid\":1,\"invalid\":1,\"disposable\":1}}\n```\n\n**When to use**: bulk list cleaning, CRM hygiene, or pre-campaign validation. Essential when you have 5+ emails to verify at once.\n\n**Not for**: single emails (use `email_verify_address`), finding emails (use `email_find_by_name`).\n\n## Example agent prompts\n\n- \"Verify email deliverability in real-time\"\n- \"Validate multiple email addresses at once (up to 100)\"\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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  "sha": "6813482f06a59eea34264c9977d299a99b6846ae9137e35905d0f9fcbc89ef79",
  "repo_slug": "br0ski777/email-verification-x402",
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  "api": "https://agentalog.com/api/listings/mcp_io_github_br0ski777_email_verification_7b09f147/readme"
}