gateway.apiosk.com

https://gateway.apiosk.com/email-verification/check

Shares a payout wallet with 590 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

Validate a single email address: format, MX, SMTP mailbox check, and disposable/role/free classification with a deliverability score.

57
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

100.0% avg
0% 50% 100% Jul 22Aug 1Aug 10Aug 20

Response time

p50 576ms · p95 1158ms
0ms 1300ms 2600ms Jul 22Aug 1Aug 10Aug 20
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
7/22/2026, 12:00:00 AM 100% 1 539ms
7/23/2026, 12:00:00 AM 100% 1 566ms
7/24/2026, 12:00:00 AM 100% 1 505ms
7/25/2026, 12:00:00 AM 100% 1 506ms
7/26/2026, 12:00:00 AM 100% 1 633ms
7/27/2026, 12:00:00 AM 100% 1 505ms
7/28/2026, 12:00:00 AM 100% 1 593ms
7/29/2026, 12:00:00 AM 100% 1 607ms
7/30/2026, 12:00:00 AM 100% 1 1440ms
7/31/2026, 12:00:00 AM 100% 1 2576ms
8/1/2026, 12:00:00 AM 100% 1 642ms
8/2/2026, 12:00:00 AM 100% 1 533ms
8/3/2026, 12:00:00 AM 100% 1 531ms
8/4/2026, 12:00:00 AM 100% 1 507ms
8/5/2026, 12:00:00 AM 100% 1 504ms
8/6/2026, 12:00:00 AM 100% 1 657ms
8/7/2026, 12:00:00 AM 100% 1 528ms
8/8/2026, 12:00:00 AM 100% 1 591ms
8/9/2026, 12:00:00 AM 100% 1 538ms
8/10/2026, 12:00:00 AM 100% 1 511ms
8/11/2026, 12:00:00 AM 100% 1 549ms
8/12/2026, 12:00:00 AM 100% 1 548ms
8/13/2026, 12:00:00 AM 100% 1 500ms
8/14/2026, 12:00:00 AM 100% 1 507ms
8/15/2026, 12:00:00 AM 100% 1 506ms
8/16/2026, 12:00:00 AM 100% 1 902ms
8/17/2026, 12:00:00 AM 100% 1 702ms
8/18/2026, 12:00:00 AM 100% 2 824ms
8/19/2026, 12:00:00 AM 100% 20 722ms
8/20/2026, 12:00:00 AM 100% 19 756ms
57
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
85

How quickly it answers when it is up — fast scores high (weight 20%).

Security
97

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
0

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
Register SPA
Domain registered
2025-11-27
Hosting network
FLYIO
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

35
payments (30d)
2.43
USD volume (30d)
1
paying wallets (30d)

Payments per day

last payment 7/22/2026
0 20 40 Jul 22
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
7/22/2026 35 2.43 1

This payout wallet is shared: figures cover all 591 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Linked by wallet — likely same operator

On-chain agent identity and the x402 endpoint that shares its settlement wallet.

https://gateway.apiosk.com/finnhub/stock/insider-transactions x402 endpoint
Response schema 
{
  "input": {
    "discoverable": true,
    "method": "GET",
    "queryParams": {
      "email": {
        "description": "Email address to validate, e.g. support@apple.com",
        "required": true,
        "type": "string"
      },
      "format": {
        "description": "Set 1 for pretty-printed JSON.",
        "required": false,
        "type": "integer"
      },
      "smtp": {
        "description": "Set 0 to skip the live SMTP mailbox check (default 1).",
        "required": false,
        "type": "integer"
      }
    },
    "type": "http"
  },
  "output": {
    "catch_all": null,
    "did_you_mean": "",
    "disposable": false,
    "domain": "apple.com",
    "email": "support@apple.com",
    "format_valid": true,
    "free": false,
    "mx_found": true,
    "role": true,
    "score": 0.8,
    "smtp_check": true,
    "user": "support"
  }
}