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📊 Intel view 📋 Audit JSON 🔄 Changelog
85
A2A live JSON-RPC A2A 0.3.0 v1.0.0

Mailvett by CyberMax

mailvett.cybermax-tools.workers.dev · CyberMax

Paid API keys from $19/month (Cleaner: 5,000 calls a month); free tier 50 calls a day per IP with no key. Buy: https://mailvett.cybermax-tools.workers.dev/buy/cleaner?s=lead · all plans: https://mailvett.cybermax-tools.workers.dev/docs#pricing. Free email validation API and MCP server: syntax, MX, disposable, role, free-provider and typo checks with a verdict, reasons and a 0-100 score. No SMTP probing.

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Verify the domain mailvett.cybermax-tools.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.
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🔔 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
55/100
grade D · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 55/100
D-grade: significant issues, auth-gated, partially broken, or stale.
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.
partial Protocol version 5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 0 probes so far, need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 1 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: CyberMax (https://cybermax.cybermax-tools.workers.dev/store/). 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 4/5
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.

Uptime
not measured
0 direct probes · 30d
Response
—
no direct probe retained
Skills
1
declared
Streaming
—
SSE-capable

Try it

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Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/mailvett.cybermax-tools.workers.dev.svg)](https://agenstry.com/agents/mailvett.cybermax-tools.workers.dev)
[![Verified Business](https://agenstry.com/badge/mailvett.cybermax-tools.workers.dev/identity.svg)](https://agenstry.com/agents/mailvett.cybermax-tools.workers.dev)
[![Uptime](https://agenstry.com/badge/mailvett.cybermax-tools.workers.dev/uptime.svg)](https://agenstry.com/agents/mailvett.cybermax-tools.workers.dev)
[![A2A version](https://agenstry.com/badge/mailvett.cybermax-tools.workers.dev/protocol.svg)](https://agenstry.com/agents/mailvett.cybermax-tools.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": "Mailvett by CyberMax",
  "url": "https://mailvett.cybermax-tools.workers.dev/mcp",
  "description": "Paid API keys from $19/month (Cleaner: 5,000 calls a month); free tier 50 calls a day per IP with no key. Buy: https://mailvett.cybermax-tools.workers.dev/buy/cleaner?s=lead \u00b7 all plans: https://mailvett.cybermax-tools.workers.dev/docs#pricing. Free email validation API and MCP server: syntax, MX, disposable, role, free-provider and typo checks with a verdict, reasons and a 0-100 score. No SMTP probing.",
  "version": "1.0.0",
  "documentationUrl": "https://mailvett.cybermax-tools.workers.dev/docs",
  "iconUrl": null,
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "validate_emails",
      "name": "Validate email addresses (no SMTP probing)",
      "description": "Check up to 10 email addresses: syntax, whether the domain exists and has mail servers (MX), mail provider, disposable, role account (info@, sales@), free provider, likely typo with a suggested fix, domain age, SPF and DMARC. Returns verdict (deliverable_likely/risky/undeliverable/invalid), score 0-100 and reason codes per address. Does not verify that the mailbox itself exists.",
      "tags": [
        "mailvett",
        "data api",
        "mcp"
      ],
      "examples": [],
      "inputModes": [],
      "outputModes": []
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "protocolVersion": "0.3.0",
  "provider": {
    "organization": "CyberMax",
    "url": "https://cybermax.cybermax-tools.workers.dev/store/"
  }
}