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Skill Email Deliverability

by Skill: Email deliverability in Email & messaging

x402 APIPassing, checked 3 h ago

Diagnose why a domain's email lands in spam: SPF posture, DMARC policy, DKIM key strength, MX targets, and a composite 0–100 score. Email deliverability skill pack: one x402 payment runs 6 underlying tools (spf-check, dmarc-check, dkim-lookup, email-deliverability, email-validate, dns-lookup); partial-success per step.

POST https://agent402.tools/api/skill/email-deliverability

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
271 ms typical, 271 ms slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/skill/email-deliverability" \
  -H "content-type: application/json" \
  -d '{"domain":"example.com"}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fskill%2Femail-deliverability
const res = await pay("https://agent402.tools/api/skill/email-deliverability", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"domain":"example.com"}),
});
console.log(await res.json());

Example input

{
  "domain": "example.com"
}

Example output

{
  "args": {
    "domain": "example.com"
  },
  "pack": "email-deliverability",
  "steps": [
    {
      "ok": true,
      "result": {},
      "slug": "spf-check"
    },
    {
      "ok": true,
      "result": {},
      "slug": "dmarc-check"
    },
    {
      "ok": true,
      "result": {},
      "slug": "dkim-lookup"
    },
    {
      "ok": true,
      "result": {},
      "slug": "email-deliverability"
    },
    {
      "ok": true,
      "result": {},
      "slug": "email-validate"
    },
    {
      "ok": true,
      "result": {},
      "slug": "dns-lookup"
    }
  ],
  "summary": "6/6 steps succeeded"
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402271 ms$0.009