Saylor Innovations Data Desk

Name: Saylor Innovations Data Desk
Price: 0.01 USDC
Availability: InStock

Email authentication posture for a domain - SPF with lookup count, DMARC policy and reporting, DKIM selectors, MX, MTA-STS, TLS-RPT and BIMI with prioritised issues

DataLiveeip155:8453Exactvia cdp

https://saylorinnovations.com/api/email/auth

Check spf dkim dmarcEmail deliverability dns checkIs my domain spoofableDmarc policy lookupEmail authentication audit

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 21 snapshots so far.

$15.76

Verified settled volume

1,657 settlements proven x402 by their on-chain EIP-3009 marker.

$0.010

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-10-18 23:10Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required to access this resource.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "memo": "saylor:datadesk:email-auth-check",
        "name": "USD Coin",
        "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
        "version": "2",
        "facilitatorOnly": true,
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "memo": "saylor:datadesk:email-auth-check",
        "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazplbWFpbC1hdXRoLWNoZWNrIiwicmVmZXJlbmNlIjoiRmlXcFlvZTZoNUpEY1pOSnlpOXNKSmI2Z0dTSm01ZVV4dXZiaVlzc0xTTVgiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjIzNTg1NDc2NX0.tlwZTYoaZfdzmUKpH0hHjUfvlSlvhkEQFyb6WeT6te4",
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "reference": "FiWpYoe6h5JDcZNJyi9sJJb6gGSJm5eUxuvbiYssLSMX"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://saylorinnovations.com/api/email/auth?domain=github.com",
    "tags": [
      "check spf dkim dmarc for a domai",
      "email deliverability dns check",
      "is my domain spoofable",
      "dmarc policy lookup",
      "email authentication audit"
    ],
    "iconUrl": "https://saylorinnovations.com/og-image.jpg",
    "mimeType": "application/json",
    "description": "Email authentication posture for a domain - SPF with lookup count, DMARC policy and reporting, DKIM selectors, MX, MTA-STS, TLS-RPT and BIMI with prioritised issues",
    "serviceName": "Saylor Innovations Data Desk"
  },
  "extensions": {
    "tags": [
      "check spf dkim dmarc for a domain",
      "email deliverability dns check",
      "is my domain spoofable",
      "dmarc policy lookup",
      "email authentication audit",
      "spf record too many lookups"
    ],
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "domain": "github.com"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "mx": [
              {
                "host": "github-com.mail.protection.outlook.com",
                "priority": 0
              }
            ],
            "spf": {
              "all": "~",
              "record": "v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 i…",
              "includes": [
                "spf.protection.outlook.com",
                "_netblocks.google.com",
                "_netblocks2.google.com",
                "mail.zendesk.com",
                "_spf.salesforce.com",
                "servers.mcsv.net",
                "mktomail.com",
                "sendgrid.net"
              ],
              "dns_lookup_terms": 8
            },
            "bimi": false,
            "note": "DKIM is only probed at 12 common selectors, so absence does not prove DKIM is unused.",
            "dmarc": {
              "rua": "mailto:dmarc@github.com",
              "ruf": "mailto:dmarc@github.com",
              "policy": "quarantine",
              "percent": 100,
              "spf_alignment": "r",
              "dkim_alignment": "r",
              "subdomain_policy": "reject"
            },
            "domain": "github.com",
            "issues": [
              {
                "issue": "SPF uses ~all (softfail); -all is stricter",
                "severity": "low"
              }
            ],
            "source": "public DNS",
            "mta_sts": false,
            "tls_rpt": false,
            "verdict": "protected",
            "dkim_selectors_found": [
              "google",
              "selector1",
              "k1",
              "s1",
              "s2"
            ]
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "POST",
                  "PUT",
                  "PATCH",
                  "DELETE",
                  "HEAD"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "domain"
                ],
                "properties": {
                  "domain": {
                    "type": "string",
                    "description": "Sending domain such as example.com"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "json"
              },
              "example": {
                "type": "object",
                "required": [
                  "domain",
                  "verdict",
                  "issues"
                ],
                "properties": {
                  "mx": {
                    "type": "array"
                  },
                  "spf": {
                    "type": [
                      "object",
                      "null"
                    ]
                  },
                  "bimi": {
                    "type": "boolean"
                  },
                  "note": {
                    "type": "string",
                    "description": "Caveat or context for reading the result"
                  },
                  "dmarc": {
                    "type": [
                      "object",
                      "null"
                    ]
                  },
                  "domain": {
                    "type": "string",
                    "description": "Domain name"
                  },
                  "issues": {
                    "type": "array",
                    "description": "Issues found"
                  },
                  "source": {
                    "type": "string",
                    "description": "Data source the values come from"
                  },
                  "mta_sts": {
                    "type": "boolean",
                    "description": "Mta sts"
                  },
                  "tls_rpt": {
                    "type": "boolean",
                    "description": "Tls rpt"
                  },
                  "verdict": {
                    "type": "string",
                    "description": "Overall assessment derived from the listed reasons"
                  },
                  "dkim_selectors_found": {
                    "type": "array",
                    "description": "Dkim selectors found"
                  }
                }
              }
            }
          }
        }
      }
    },
    "method": "GET",
    "example": {
      "mx": [
        {
          "host": "github-com.mail.protection.outlook.com",
          "priority": 0
        }
      ],
      "spf": {
        "all": "~",
        "record": "v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 i…",
        "includes": [
          "spf.protection.outlook.com",
          "_netblocks.google.com",
          "_netblocks2.google.com",
          "mail.zendesk.com",
          "_spf.salesforce.com",
          "servers.mcsv.net",
          "mktomail.com",
          "sendgrid.net"
        ],
        "dns_lookup_terms": 8
      },
      "bimi": false,
      "note": "DKIM is only probed at 12 common selectors, so absence does not prove DKIM is unused.",
      "dmarc": {
        "rua": "mailto:dmarc@github.com",
        "ruf": "mailto:dmarc@github.com",
        "policy": "quarantine",
        "percent": 100,
        "spf_alignment": "r",
        "dkim_alignment": "r",
        "subdomain_policy": "reject"
      },
      "domain": "github.com",
      "issues": [
        {
          "issue": "SPF uses ~all (softfail); -all is stricter",
          "severity": "low"
        }
      ],
      "source": "public DNS",
      "mta_sts": false,
      "tls_rpt": false,
      "verdict": "protected",
      "dkim_selectors_found": [
        "google",
        "selector1",
        "k1",
        "s1",
        "s2"
      ]
    },
    "license": "LicenseRef-Saylor-Agent-Use-1.0",
    "mimeType": "application/json",
    "freshness": "fetched live (cached up to 1 hour for large reference files)",
    "tokenCount": null,
    "inputSchema": {
      "domain": "Sending domain such as example.com"
    },
    "serviceName": "Saylor Innovations Data Desk",
    "instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
    "outputSchema": {
      "type": "object",
      "required": [
        "domain",
        "verdict",
        "issues"
      ],
      "properties": {
        "mx": {
          "type": "array"
        },
        "spf": {
          "type": [
            "object",
            "null"
          ]
        },
        "bimi": {
          "type": "boolean"
        },
        "note": {
          "type": "string"
        },
        "dmarc": {
          "type": [
            "object",
            "null"
          ]
        },
        "domain": {
          "type": "string"
        },
        "issues": {
          "type": "array"
        },
        "source": {
          "type": "string"
        },
        "mta_sts": {
          "type": "boolean"
        },
        "tls_rpt": {
          "type": "boolean"
        },
        "verdict": {
          "type": "string"
        },
        "dkim_selectors_found": {
          "type": "array"
        }
      }
    },
    "noPathTemplate": true,
    "settlementModes": [
      "facilitator-transaction",
      "self-submitted-reference"
    ],
    "typicalLatencyMs": 700
  },
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD

on Base · exact scheme

Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.

Paid to: 0xA2A8…fc8aa
USD Coin contract: 0x8335…02913
Payment window: 2 minutes
As published: 10000 smallest units

10000units

on Polygon · exact scheme