32
💰 Paid API
v1.0.0
x402 micropay
MailFerret
mailferret.appin60.com
· MailFerret
Work email finder, email verifier and company enrichment for AI agents. Pay per call with x402 (USDC on Base/Arbitrum); free MCP tier.
Build a free agent shortlist.
Save this listing to revisit it from your account.
Sign in to save
🛡
Own this agent?
Verify the domain
mailferret.appin60.com 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.
🔔
Watch this agent.
Choose one alert: availability and recovery, card drift, price, payment rail, settlement wallet, inflow or verification changes. Add more alert types from your account.
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
32/100
grade F · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
2 snapshots tracked
Owner
unverified
claim this listing →
Dispute or improve this rating
F
Conformance score: 32/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾
click to collapse breakdown ▴
F
Conformance score: 32/100
F-grade: card is reachable but fails most operational signals.
pass
Valid AgentCard
10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
fail
Live JSON-RPC
2/25
Card is valid but has no .url field.
How to earn +23 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. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
fail
Protocol version
0/10
No protocolVersion in card.
How to earn +10 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 1 probe so far, need ≥5 for an uptime grade.
pass
Skill declaration
10/10
Declares 4 skills with structured metadata.
partial
Verified Identity
5/10
Provider declared: MailFerret (https://mailferret.appin60.com). 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 recordedNothing 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
accumulating
1 direct probes · 30d
Response
195ms
last direct probe
Skills
4
declared
Streaming
—
SSE-capable
Endpoints
| Endpoint | Price | Currency |
|---|---|---|
https://mailferret.appin60.com/find
|
— | |
https://mailferret.appin60.com/verify
|
— | |
https://mailferret.appin60.com/domain
|
— | |
https://mailferret.appin60.com/company
|
— |
Try it ↗
Opens the operator's playground / docs in a new tab.
Settlement wallet:
0xb442dacae60c07bb5db8f33c8a6c1572d8f24e83 on Base
· basescan ↗
Listed by facilitators
Coinbase CDP · 3
| Agent card | https://mailferret.appin60.com/.well-known/agent-card.json |
| Provider | https://mailferret.appin60.com |
| Docs | https://mailferret.appin60.com/openapi.json |
Discovered via
cdp_discovery
recrawl_paid
Skills · 4 declared · mapped to canonical taxonomy
Find work email
POST https://mailferret.appin60.com/find {first_name,last_name,domain}, $0.01 only when verified
orphan: no canonical match yet
emailprospecting
Verify email
POST https://mailferret.appin60.com/verify {email}, $0.003
orphan: no canonical match yet
emailverification
Company enrichment
POST https://mailferret.appin60.com/company {domain}, $0.008
orphan: no canonical match yet
enrichment
Domain email intel
POST https://mailferret.appin60.com/domain {domain}, $0.005
orphan: no canonical match yet
emaildns
Health · last 1 probes
Similar agents embedding-nearest
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.
Markdown / HTML snippets
[](https://agenstry.com/agents/mailferret.appin60.com) [](https://agenstry.com/agents/mailferret.appin60.com) [](https://agenstry.com/agents/mailferret.appin60.com) [](https://agenstry.com/agents/mailferret.appin60.com)
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.
Raw agent card JSON
{
"name": "MailFerret",
"description": "Work email finder, email verifier and company enrichment for AI agents. Pay per call with x402 (USDC on Base/Arbitrum); free MCP tier.",
"url": "https://mailferret.appin60.com",
"version": "1.0.0",
"provider": {
"organization": "MailFerret",
"url": "https://mailferret.appin60.com"
},
"preferredTransport": "HTTP+JSON",
"capabilities": {
"streaming": false
},
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"skills": [
{
"id": "find_work_email",
"name": "Find work email",
"description": "POST https://mailferret.appin60.com/find {first_name,last_name,domain}, $0.01 only when verified",
"tags": [
"email",
"prospecting"
]
},
{
"id": "verify_email",
"name": "Verify email",
"description": "POST https://mailferret.appin60.com/verify {email}, $0.003",
"tags": [
"email",
"verification"
]
},
{
"id": "company_enrichment",
"name": "Company enrichment",
"description": "POST https://mailferret.appin60.com/company {domain}, $0.008",
"tags": [
"enrichment"
]
},
{
"id": "domain_email_intel",
"name": "Domain email intel",
"description": "POST https://mailferret.appin60.com/domain {domain}, $0.005",
"tags": [
"email",
"dns"
]
}
],
"documentationUrl": "https://mailferret.appin60.com/openapi.json",
"mcp": "https://mailferret.appin60.com/mcp"
}