grokzilla.shop / try

{ try it }

"skills": 33, // pay-per-call, no account, no API key
"protocol": "x402 v2 · scheme exact",
"network": "eip155:8453", // Base mainnet
"this_page_pays": false // "Send unpaid request" only shows the 402 challenge. Paying stays with your own wallet or agent.
optional · prompt only The Base address your agent pays from. It is only written into the copyable agent prompt so your agent knows which wallet to use. It is never sent to the server and nothing is signed here.

← all 33 skills

"email-check": { Email Deliverability Check $0.0032 Check an email address for deliverability: syntax, canonical form, MX, SPF, DMARC, disposable domain. One verdict with reasons and sources. DNS-over-HTTPS only, no mailbox probing. Not charged if the DNS lookup fails.
"endpoint": "https://grokzilla.shop/api/skills/email-check",
"method": "POST", "content_type": "application/json",
"price_usd": 0.0032, // 3200 atomic USDC (6 decimals)
"network": "eip155:8453", // Base mainnet
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", // USDC
"payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
"docs": "/docs/email-check",
"you_provide": { // JSON body fields
required string One email address. Only public DNS is checked; the mailbox is never contacted. Required · string min length 3 · max length 254 Example: "jane.doe+news@gmail.com"
optional string Value for `request_id`. Optional · string min length 1 · max length 64
},
"request_body": // live, from your inputs
{
  "email": "jane.doe+news@gmail.com"
}
"you_get": { // HTTP 200 application/json after payment
"output_schema":
{
  "type": "object",
  "properties": {
    "ok": {
      "type": "boolean"
    },
    "skill": {
      "type": "string"
    },
    "service": {
      "type": "string"
    },
    "version": {
      "type": "string"
    },
    "summary": {
      "type": "string"
    },
    "data": {
      "type": "object",
      "properties": {
        "email": {
          "type": "string"
        },
        "local": {
          "type": "string"
        },
        "domain": {
          "type": "string"
        },
        "verdict": {
          "type": "string"
        },
        "reasons": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "syntax_valid": {
          "type": "boolean"
        },
        "canonical": {
          "type": "string"
        },
        "canonical_rule": {
          "type": "string"
        },
        "plus_tag": {
          "type": "string"
        },
        "domain_exists": {
          "type": "boolean"
        },
        "mx": {
          "type": "array",
          "items": {
            "type": "object"
          }
        },
        "null_mx": {
          "type": "boolean"
        },
        "implicit_mx": {
          "type": "boolean"
        },
        "mx_host_resolves": {
          "type": "boolean"
        },
        "spf": {
          "type": "object",
          "properties": {
            "present": {
              "type": "boolean"
            },
            "record": {
              "type": "string"
            },
            "count": {
              "type": "integer"
            }
          }
        },
        "dmarc": {
          "type": "object",
          "properties": {
            "present": {
              "type": "boolean"
            },
            "record": {
              "type": "string"
            },
            "p": {
              "type": "string"
            },
            "sp": {
              "type": "string"
            },
            "pct": {
              "type": "null"
            },
            "rua": {
              "type": "boolean"
            }
          }
        },
        "disposable": {
          "type": "boolean"
        },
        "role_account": {
          "type": "boolean"
        },
        "free_provider": {
          "type": "boolean"
        },
        "mailbox_checked": {
          "type": "boolean"
        }
      }
    },
    "confidence": {
      "type": "number"
    },
    "sources": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string"
          },
          "url": {
            "type": "string"
          },
          "fetched_at": {
            "type": "string"
          }
        }
      }
    },
    "generated_at": {
      "type": "string"
    },
    "data_as_of": {
      "type": "string"
    },
    "charged": {
      "type": "boolean"
    },
    "warnings": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "next": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "required": [
    "ok",
    "skill"
  ]
}
"example":
{
  "ok": true,
  "skill": "email_check",
  "service": "email_check",
  "version": "1.0.0",
  "summary": "deliverable: MX ok (gmail-smtp-in.l.google.com), SPF ok, DMARC p=none",
  "data": {
    "email": "jane.doe+news@gmail.com",
    "local": "jane.doe+news",
    "domain": "gmail.com",
    "verdict": "deliverable",
    "reasons": [
      "MX ok (gmail-smtp-in.l.google.com)",
      "SPF ok",
      "DMARC p=none"
    ],
    "syntax_valid": true,
    "canonical": "janedoe@gmail.com",
    "canonical_rule": "gmail: dots and +tag removed",
    "plus_tag": "news",
    "domain_exists": true,
    "mx": [
      {
        "priority": 5,
        "host": "gmail-smtp-in.l.google.com"
      },
      {
        "priority": 10,
        "host": "alt1.gmail-smtp-in.l.google.com"
      },
      {
        "priority": 20,
        "host": "alt2.gmail-smtp-in.l.google.com"
      },
      {
        "priority": 30,
        "host": "alt3.gmail-smtp-in.l.google.com"
      },
      {
        "priority": 40,
        "host": "alt4.gmail-smtp-in.l.google.com"
      }
    ],
    "null_mx": false,
    "implicit_mx": false,
    "mx_host_resolves": true,
    "spf": {
      "present": true,
      "record": "v=spf1 redirect=_spf.google.com",
      "count": 1
    },
    "dmarc": {
      "present": true,
      "record": "v=DMARC1; p=none; sp=quarantine; rua=mailto:mailauth-reports@google.com",
      "p": "none",
      "sp": "quarantine",
      "pct": null,
      "rua": true
    },
    "disposable": false,
    "role_account": false,
    "free_provider": true,
    "mailbox_checked": false
  },
  "confidence": 0.85,
  "sources": [
    {
      "name": "Cloudflare DoH",
      "url": "https://cloudflare-dns.com/dns-query?name=gmail.com",
      "fetched_at": "2026-10-17T11:12:49Z"
    },
    {
      "name": "disposable-email-domains",
      "url": "https://github.com/disposable-email-domains/disposable-email-domains (CC0-1.0)",
      "fetched_at": "2026-10-17T11:12:49Z",
      "list_date": "2026-10-16"
    }
  ],
  "generated_at": "2026-10-17T11:12:49Z",
  "data_as_of": "2026-10-17T11:12:49Z",
  "charged": true,
  "warnings": [
    "mailbox existence is not checked (no SMTP probing); a deliverable domain can still reject this mailbox"
  ],
  "next": [
    "phone_normalize",
    "ip_intel"
  ]
}
},
"flow": [
  1. POST https://grokzilla.shop/api/skills/email-check with the JSON body, no payment header
  2. ← 402 Payment Required + PAYMENT-REQUIRED header: base64 JSON {x402Version: 2, accepts: [{scheme: "exact", network: "eip155:8453", asset: USDC, amount: "3200", payTo}]} (same JSON in the body)
  3. your x402 client checks amount ≤ $0.0032 and signs a USDC transfer authorization to payTo with your wallet
  4. retry the same POST with PAYMENT-SIGNATURE: <base64> (x402 v2) or X-PAYMENT (v1 clients)
  5. ← 200 OK with the result JSON + PAYMENT-RESPONSE header (base64 settlement receipt, tx hash on Base)
],
"copy": { // fills in from your inputs as you type
"agent_prompt"

        

        

          
"curl" // unpaid: shows the 402

          

        

        

          
"agentcash" // pays from your AgentCash wallet

          

        

        
},

      


      

        
"try": // POSTs unpaid to /api/skills/email-check on this host and decodes the 402. Never pays.

        

        
      

      
}