{
  "markdown": "# Email Deliverability Audit API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://email-deliverability.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\nEmail deliverability audit for any domain. SPF, DKIM, DMARC, MX validation with score 0-100 and fix recommendations. 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-deliverability\": {\n      \"url\": \"https://email-deliverability.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl \"https://email-deliverability.api.klymax402.com/api/audit?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| `email_audit_deliverability` | GET | `/api/audit` | $0.012 | Audit email deliverability for a domain — checks SPF, DKIM, DMARC, MX records |\n| `email_audit_deliverability` | POST | `/api/audit` | $0.012 | Audit email deliverability for a domain — checks SPF, DKIM, DMARC, MX records (POST variant) |\n\n### `email_audit_deliverability`\n\nUse this when you need to audit email deliverability configuration for a domain. Returns structured JSON with authentication record analysis and a deliverability score 0-100.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `domain` | string | yes | Domain to audit (e.g. example.com, gmail.com) |\n\nExample response:\n\n```json\n{\"score\":65,\"spf\":{\"found\":true,\"valid\":true,\"record\":\"v=spf1 include:_spf.google.com ~all\"},\"dkim\":{\"google\":true,\"default\":false},\"dmarc\":{\"found\":true,\"policy\":\"none\",\"record\":\"v=DMARC1; p=none\"},\"mx\":[{\"priority\":10,\"exchange\":\"alt1.gmail-smtp-in.l.google.com\"}],\"recommendations\":[\"Upgrade DMARC policy from none to quarantine\",\"Add DKIM for default selector\"]}\n```\n\n**When to use**: launching email campaigns, onboarding new domains for outreach, or diagnosing inbox placement issues. Essential for email marketers, sales teams, and IT admins managing domain reputation.\n\n**Not for**: single email validation (use `email_verify_address`), finding email addresses (use `email_find_by_name`), domain WHOIS/DNS (use `domain_lookup_intelligence`).\n\n### `email_audit_deliverability`\n\nUse this when you need to audit email deliverability configuration for a domain. Returns structured JSON with authentication record analysis and a deliverability score 0-100. POST variant of email_audit_deliverability -- 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 audit (e.g. example.com, gmail.com) |\n\nExample response:\n\n```json\n{\"score\":65,\"spf\":{\"found\":true,\"valid\":true,\"record\":\"v=spf1 include:_spf.google.com ~all\"},\"dkim\":{\"google\":true,\"default\":false},\"dmarc\":{\"found\":true,\"policy\":\"none\",\"record\":\"v=DMARC1; p=none\"},\"mx\":[{\"priority\":10,\"exchange\":\"alt1.gmail-smtp-in.l.google.com\"}],\"recommendations\":[\"Upgrade DMARC policy from none to quarantine\",\"Add DKIM for default selector\"]}\n```\n\n**When to use**: launching email campaigns, onboarding new domains for outreach, or diagnosing inbox placement issues. Essential for email marketers, sales teams, and IT admins managing domain reputation.\n\n**Not for**: single email validation (use `email_verify_address`), finding email addresses (use `email_find_by_name`), domain WHOIS/DNS (use `domain_lookup_intelligence`).\n\n## Example agent prompts\n\n- \"Audit email deliverability configuration for a domain\"\n- \"Audit email deliverability configuration for a domain\"\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",
  "bytes": 4787,
  "sha": "a910ab3bbacbd955dceb58fe5aa9def47433ae8ab38a142c3fe75e0b3aa4f7c7",
  "repo_slug": "br0ski777/email-deliverability-x402",
  "fonte": "repo",
  "truncated": false,
  "api": "https://agentalog.com/api/listings/mcp_io_github_br0ski777_email_deliverability_0046d749/readme"
}