100

A2A live JSON-RPC A2A 1.0 v1.0.0 x402 micropay

Email DNS Preflight

email-dns-preflight-x402.copper-crate.workers.dev · Email DNS Preflight

Email and domain hygiene for agents: syntax, MX/Null-MX, SPF, DMARC and DNSSEC posture. DNS-level only; no SMTP mailbox-existence claim.

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Verify the domain email-dns-preflight-x402.copper-crate.workers.dev via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.

Verify ownership

🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch

Trust score

61/100

grade C · 9 criteria

Uptime

accumulating

4/5 direct probes · 30d

~20 ms response

Observed inflow · 30d

not yet measured

wallet declared · scan pending

Dispute or improve this rating

C

Conformance score: 61/100

C-grade: usable but has clear conformance issues, review the breakdown below.

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

pass Live JSON-RPC 25/25

Endpoint responds to a negotiated A2A SendMessage probe (answers in ~20 ms).

pass Protocol version 10/10

Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).

info JWS signature 0/10

Card is unsigned (most published agents are).

info Uptime track record 0/15

Only 4 probes so far, need ≥5 for an uptime grade.

partial Skill declaration 6/10

Declares 2 skill, usable but thin.

            How to earn +4 points
          

Declare your skills

Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags` — `description` and `tags` are REQUIRED on AgentSkill since A2A v1.0, and tags are what discovery filters match on. We canonicalise these into the global skill taxonomy on next probe.

Docs →

partial Verified Identity 5/10

Provider declared: Email DNS Preflight (https://email-dns-preflight-x402.copper-crate.workers.dev). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.

            How to earn +5 points
          

Verify your domain ownership

Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.

Docs →

pass Freshness + modern flags 5/5

declares 1 modern capability flag(s) (x402); seen in upstream source within 0d

info Security declaration 0/5

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

3 snapshots drifted 2× Every change to agent-card.json

Captured	Hash
2026-09-29 22:10:04 current	`5b86f43955a4…`	view →
2026-09-29 20:48:52	`de3f6adc1bb7…`	view →
2026-09-29 20:42:57	`8c173fa5e5fb…`	view →

Uptime

accumulating

4 direct probes · 30d

Response

15ms

last direct probe

Skills

declared

Streaming

—

SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

Endpoints

Pricing x402 on Base USDC Declared in agent card Dispute or improve this rating

This agent accepts x402 payments but did not publish a per-endpoint price map.

Try it ↗ Opens the operator's documentation in a new tab.

Settlement wallet: 0x513da013685f6b608b4a437d06377cad71425e80 on Base · basescan ↗

Agent card	`https://email-dns-preflight-x402.copper-crate.workers.dev/.well-known/agent-card.json?rev=a2a-v1-live-20260929`
Provider	https://email-dns-preflight-x402.copper-crate.workers.dev
Docs	https://email-dns-preflight-x402.copper-crate.workers.dev/skill.md

Discovered via

a2a-validate

Skills · 2 declared · mapped to canonical taxonomy

Email DNS Preflight

Preflight an email address and its public DNS mail-security posture.

canonical Flight Search and Booking match 83%

emailvalidationverificationdnssecurity

Domain DNS Preflight

Resolve domain mail-routing and authentication posture: MX, A/AAAA fallback, SPF, DMARC and DNSSEC.

canonical Maps and Routing match 83%

dnsdomainmxspfdmarc

Health · last 4 probes

When	HTTP	Live JSON-RPC	Latency
2026-09-29 22:10:04	200	✓	15ms
2026-09-29 21:34:40	200	✓	79ms
2026-09-29 20:48:52	200	✓	107ms
2026-09-29 20:42:57	200	✗	21ms

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Embed your Agenstry badge

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Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/email-dns-preflight-x402.copper-crate.workers.dev.svg)](https://agenstry.com/agents/email-dns-preflight-x402.copper-crate.workers.dev)
[![Verified Business](https://agenstry.com/badge/email-dns-preflight-x402.copper-crate.workers.dev/identity.svg)](https://agenstry.com/agents/email-dns-preflight-x402.copper-crate.workers.dev)
[![Uptime](https://agenstry.com/badge/email-dns-preflight-x402.copper-crate.workers.dev/uptime.svg)](https://agenstry.com/agents/email-dns-preflight-x402.copper-crate.workers.dev)
[![A2A version](https://agenstry.com/badge/email-dns-preflight-x402.copper-crate.workers.dev/protocol.svg)](https://agenstry.com/agents/email-dns-preflight-x402.copper-crate.workers.dev)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history

Raw agent card JSON

{
  "name": "Email DNS Preflight",
  "description": "Email and domain hygiene for agents: syntax, MX/Null-MX, SPF, DMARC and DNSSEC posture. DNS-level only; no SMTP mailbox-existence claim.",
  "url": "https://email-dns-preflight-x402.copper-crate.workers.dev/a2a",
  "preferredTransport": "JSONRPC",
  "supportedInterfaces": [
    {
      "url": "https://email-dns-preflight-x402.copper-crate.workers.dev/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    }
  ],
  "version": "1.0.0",
  "protocolVersion": "1.0",
  "provider": {
    "organization": "Email DNS Preflight",
    "url": "https://email-dns-preflight-x402.copper-crate.workers.dev"
  },
  "documentationUrl": "https://email-dns-preflight-x402.copper-crate.workers.dev/skill.md",
  "iconUrl": "https://email-dns-preflight-x402.copper-crate.workers.dev/icon.svg",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "authentication": [
    {
      "schemes": [
        "x402"
      ]
    }
  ],
  "skills": [
    {
      "id": "emailDnsPreflight",
      "name": "Email DNS Preflight",
      "description": "Preflight an email address and its public DNS mail-security posture.",
      "tags": [
        "email",
        "validation",
        "verification",
        "dns",
        "security"
      ],
      "examples": [
        "Check alice@example.com before CRM import"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "domainDnsPreflight",
      "name": "Domain DNS Preflight",
      "description": "Resolve domain mail-routing and authentication posture: MX, A/AAAA fallback, SPF, DMARC and DNSSEC.",
      "tags": [
        "dns",
        "domain",
        "mx",
        "spf",
        "dmarc",
        "dnssec"
      ],
      "examples": [
        "Inspect example.com DNS and mail-security posture"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ],
  "x402": {
    "endpoint": "https://email-dns-preflight-x402.copper-crate.workers.dev/v1/email/preflight",
    "getExample": "https://email-dns-preflight-x402.copper-crate.workers.dev/v1/email/preflight?email=alice%40example.com",
    "domainGetExample": "https://email-dns-preflight-x402.copper-crate.workers.dev/v1/domain/preflight?domain=example.com",
    "priceUsd": 0.001,
    "asset": "USDC",
    "network": "eip155:8453",
    "payTo": "0x513da013685f6B608b4A437d06377CAD71425E80"
  }
}