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📊 Intel view 📋 Audit JSON 🔄 Changelog
65
💰 Paid API

email-preflight-api.vercel.app

email-preflight-api.vercel.app · email-preflight-api.vercel.app

Pre-action check for AI agents: inspect an unfamiliar live x402 v2 challenge immediately before purchase. Verify price, network, payee, resource binding, timeout, and Bazaar metadata without paying the target or forwarding credentials. POST probes send only a fixed empty JSON object; callers cannot supply target request content.

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🛡
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Verify the domain email-preflight-api.vercel.app 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
34/100
grade F · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
$0.00
wallet active · no inflow
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
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).
partial Live JSON-RPC 15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` 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.
fail Skill declaration 0/10
No skills declared in card. Hard to route to.
How to earn +10 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: email-preflight-api.vercel.app (https://email-preflight-api.vercel.app). 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
—
0 direct probes · 30d
Response
—
no direct probe retained
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base per call USDC Facilitator feed Dispute or improve this rating
From $0.0030 per call
Endpoint Price Currency
https://email-preflight-api.vercel.app/api/x402-preflight 0.003 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x8331051bb822536d5e228433e7a5486f7169064d · basescan ↗
Observed on-chain inflow verified on-chain
Last 7d
$0.00
0 calls
Last 30d
$0.00
0 calls
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.
Daily 30-day observed-inflow history
2026-08-09 2026-08-19
Peak day: $0.00 Data points: 11 Total tx (30d window): 0
Agent cardhttps://email-preflight-api.vercel.app
Providerhttps://email-preflight-api.vercel.app
Docshttps://email-preflight-api.vercel.app
Discovered via
agentic_market cdp_discovery

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.

Who's calling this agent 30d

1 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
curl 1 (100%)
Caller geography · top 3
US 1
Via which API surface · top 3
rest 1

Public teaser: top-3 per dimension only. Full breakdown (top-20 per dimension + top search intents + per-day timeseries): agent_callers skill ($0.05/call, $0 on Enterprise). Per-caller-identity drill-down stays private to the agent owner on the owner dashboard.

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/email-preflight-api.vercel.app.svg)](https://agenstry.com/agents/email-preflight-api.vercel.app)
[![Verified Business](https://agenstry.com/badge/email-preflight-api.vercel.app/identity.svg)](https://agenstry.com/agents/email-preflight-api.vercel.app)
[![Uptime](https://agenstry.com/badge/email-preflight-api.vercel.app/uptime.svg)](https://agenstry.com/agents/email-preflight-api.vercel.app)
[![A2A version](https://agenstry.com/badge/email-preflight-api.vercel.app/protocol.svg)](https://agenstry.com/agents/email-preflight-api.vercel.app)

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 
{
  "_source": "agentic.market",
  "service": {
    "id": "email-preflight-api-vercel-app",
    "name": "email-preflight-api.vercel.app",
    "description": "",
    "domain": "email-preflight-api.vercel.app",
    "provider": "email-preflight-api.vercel.app",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://email-preflight-api.vercel.app/api/x402-preflight",
        "description": "Pre-action check for AI agents: inspect an unfamiliar live x402 v2 challenge immediately before purchase. Verify price, network, payee, resource binding, timeout, and Bazaar metadata without paying the target or forwarding credentials. POST probes send only a fixed empty JSON object; callers cannot supply target request content.",
        "pricing": {
          "amount": "0.003",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "expected",
            "type": "object",
            "description": "",
            "example": null,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "method",
            "type": "string",
            "description": "",
            "example": "POST",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "url",
            "type": "string",
            "description": "",
            "example": "https://merchant.example/api/paid-resource",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "x402 Endpoint Preflight",
        "tags": [
          "x402",
          "payment-preflight",
          "pre-action-check",
          "agent-procurement",
          "agent-safety"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.003",
      "maxAmount": "0.003",
      "avgCostPerTransaction": "0.003",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "x402 Endpoint Preflight",
    "tags": [
      "x402",
      "payment-preflight",
      "pre-action-check",
      "agent-procurement",
      "agent-safety"
    ],
    "iconUrl": ""
  }
}