kairostamp.com

https://kairostamp.com/api/v1/headers

Shares a payout wallet with 9 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

URL HTTP metadata receipt: server-side fetch of one public http/https URL, returning only transport metadata — HTTP status, final URL, redirect chain, content type and byte length — plus a receipt id. The response body is not returned and no content preview is stored. Single GET query parameter (url).

56
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% Sun 11 AMSun 3 PMSun 6 PMSun 9 PM

Response time

p50 313ms · p95 536ms
0ms 300ms 600ms Sun 11 AMSun 3 PMSun 6 PMSun 9 PM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
8/23/2026, 11:00:00 AM 100% 1 301ms
8/23/2026, 12:00:00 PM 100% 1 306ms
8/23/2026, 1:00:00 PM 100% 1 321ms
8/23/2026, 3:00:00 PM 100% 1 313ms
8/23/2026, 4:00:00 PM 100% 1 309ms
8/23/2026, 5:00:00 PM 100% 1 532ms
8/23/2026, 6:00:00 PM 100% 1 314ms
8/23/2026, 7:00:00 PM 100% 1 512ms
8/23/2026, 8:00:00 PM 100% 1 303ms
8/23/2026, 9:00:00 PM 100% 1 540ms
56
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
100

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

Security
100

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

Transparency
67

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

Activity
1

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 20% — 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
Porkbun LLC
Domain registered
2026-08-21
Hosting network
DET-FRA-CUSTOMERS
Hosting country
EU

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)

11
payments (30d)
0.04
USD volume (30d)
2
paying wallets (30d)

Payments per day

last payment 8/23/2026
0 10 20 Aug 23
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
8/23/2026 11 0.04 2

This payout wallet is shared: figures cover all 10 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://kairostamp.com/api/v1/robots-check x402 endpoint https://kairostamp.com/api/v1/sitemap x402 endpoint https://kairostamp.com/api/v1/link-map x402 endpoint https://kairostamp.com/api/v1/redirect-audit x402 endpoint
Response schema 
{
  "properties": {
    "http": {
      "properties": {
        "byte_length": {
          "description": "Bytes read from the response body.",
          "type": "integer"
        },
        "content_type": {
          "type": [
            "string",
            "null"
          ]
        },
        "fetched_at": {
          "format": "date-time",
          "type": "string"
        },
        "redirect_chain": {
          "items": {
            "format": "uri",
            "type": "string"
          },
          "type": "array"
        },
        "status_code": {
          "type": "integer"
        },
        "url": {
          "description": "Final URL after any redirects.",
          "format": "uri",
          "type": "string"
        }
      },
      "required": [
        "url",
        "fetched_at",
        "status_code",
        "content_type",
        "byte_length",
        "redirect_chain"
      ],
      "type": "object"
    },
    "note": {
      "type": "string"
    },
    "receipt_id": {
      "format": "uuid",
      "type": "string"
    }
  },
  "required": [
    "receipt_id",
    "http"
  ],
  "type": "object"
}