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📊 Intel view 📋 Audit JSON 🔄 Changelog
85
💰 Paid API ai

AgentMail

x402.api.agentmail.to · x402.api.agentmail.to

API-first email inboxes for AI agents. Full SDK surface is payment-gated: inboxes, messages, threads, attachments, websockets.

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Verify the domain x402.api.agentmail.to 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
Our probe of this card is currently failing — 404 not found
We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.
Last attempt: 2026-08-15 15:44 Last success: 2026-08-15 Status: 404
Raw error HTTP 404
Trust score
33/100
grade F · 9 criteria
Uptime
94.3%
53 probes
Observed inflow · 30d
$2.01
2 tx · on-chain
Usage · 7d
0
no recent activity
Card drift · 7d
stable
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 33/100
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).
info Live JSON-RPC 0/25
Live probe hasn't run yet.
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).
partial Uptime track record 14/15
50/53 probes succeeded (94% uptime).
How to earn +1 point
Stabilise uptime
We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.
Docs →
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: x402.api.agentmail.to (https://x402.api.agentmail.to). 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.

Activity (audit trail)

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

No calls observed in the last 7 days. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime
94.3%
53 probes
Response
0ms
last probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base per call USD Facilitator feed Dispute or improve this rating
From $2.0000 per call
This agent accepts x402 payments but did not publish a per-endpoint price map.
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0x6e3184c204e596ded89e8a5693b602097f4ab687 · basescan ↗
Observed on-chain inflow verified on-chain
Last 7d
$2.01
2 calls
Last 30d
$2.01
2 calls
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.
Daily 30-day observed-inflow history ~ flat (+0.0%)
2026-08-04 2026-08-15
Peak day: $2.01 Data points: 12 Total tx (30d window): 2
Payment authenticity evidence confidence How we measure this →
insufficient_evidence_of_independent_payers 1/5

Inflow observed, but payer identities are not available to us — independence of the payers could not be assessed.

Assessed window
30d
2 active of 7 observed
Inflow assessed
$2.01
2 transactions
Payer identities
not held
3 evidence caveats
single_day_concentration — Most observed volume landed on a single day of the window.
Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap. Derived from agent_revenue_daily, agents.payment_wallet. Measured 2026-08-15.
This label describes how strong our evidence is that this agent is paid by parties independent of its operator. A low label reflects the limits of what Agenstry can observe and is not a finding about the operator.
Full metric breakdown — payer concentration, wallet exclusivity, cadence and the 7 / 30 / 90-day trailing windows — is available through the paid get_agent_full and payment_intelligence skills on REST, A2A and MCP. API docs →
Agent cardhttps://x402.api.agentmail.to/.well-known/agent-card.json
Providerhttps://x402.api.agentmail.to
Docshttps://x402.api.agentmail.to/v0/inboxes
Discovered via
cdp_discovery recrawl_hot x402_list

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-07-20 23:51:43 404 — —

Who's calling this agent 30d

2 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3
Python (urllib) 1 (50%)
curl 1 (50%)
Caller geography · top 3
ES 2
Via which API surface · top 3
rest 2

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/x402.api.agentmail.to.svg)](https://agenstry.com/agents/x402.api.agentmail.to)
[![Verified Business](https://agenstry.com/badge/x402.api.agentmail.to/identity.svg)](https://agenstry.com/agents/x402.api.agentmail.to)
[![Uptime](https://agenstry.com/badge/x402.api.agentmail.to/uptime.svg)](https://agenstry.com/agents/x402.api.agentmail.to)
[![A2A version](https://agenstry.com/badge/x402.api.agentmail.to/protocol.svg)](https://agenstry.com/agents/x402.api.agentmail.to)

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": "x402_list",
  "slug": "agentmail",
  "endpoint_count": 1,
  "attribution": "Data: x402-list.com (CC BY 4.0)"
}