x402 List

x402 Protocol Service Directory

Domain Intelligence API

Data

Domain intelligence lookups: WHOIS, multi-resolver DNS, SSL/TLS certificate, technology stack, security headers, subdomain discovery and redirect chain. Each check is available on its own, or combined into a single full report. Paid per call in USDC on Base or Solana.

Pay from $0.02 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

UPTIME 24H 100% 7D 100% 30D 100%
BASE URL https://domain.hugen.tokyo ENDPOINTS 1 NETWORK Base / Solana ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

ASSESSMENT

updated 4h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
1391ms
avg response
1161ms
total checks
47
compliance A (11/11)

11 of 11 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.02 (p77 in Data)
price (min)
$0.02
category percentile (min)
p77 in Data
endpoints / prices
1 / 1
model
flat
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

traction $8.77 30d · 49 buyers
volume 30d
$8.77
buyers 30d
49
settlements 30d
539
last settlement
2026-07-21
top buyer share
32% of 30d volume
trend 7d vs 30d
0.62x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d

Attributed pro-quota: this payout address is shared, so volume and buyers are the operator-level figure divided by the services sharing it. A declared convention, not an individually observed measure, and still a conservative undercount.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

Provides domain intelligence checks including WHOIS, DNS, SSL, tech stack, security headers, subdomains, and redirects through a single API endpoint.

category
domain-intelligence
in
query params
domain-analysiswhoisdnsssltech-stacksecurity-headerssubdomainsredirects

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET
GET /domain/full $0.02 Base/Solana USDC
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /domain/full returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://domain.hugen.tokyo/domain/full'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "payTo": "4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://domain.hugen.tokyo/domain/full",
      "mimeType": "application/json",
      "description": "Complete domain intelligence in one call — WHOIS, multi-resolver DNS, SSL/TLS, tech stack, security headers, subdomain discovery, redirect chain. All 7 run in parallel with individual timeouts. Partial results on component failure. Weighted overall security grade. Doing this yourself requires 7 separate tools and result aggregation. Accepts USDC payments on Base and Solana"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "domain": "example.com"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "dns": {
                "records": {
                  "A": [
                    "93.184.216.34"
                  ]
                }
              },
              "ssl": {
                "grade": "A"
              },
              "tech": {
                "technology_count": 5
              },
              "whois": {
                "registrar": "Cloudflare, Inc."
              },
              "headers": {
                "grade": "B"
              },
              "redirect": {
                "grade": "A"
              },
              "subdomains": {
                "subdomain_count": 3
              }
            }
          }
        },
        "tags": [
          "whois",
          "dns",
          "ssl",
          "domain"
        ],
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ]
            }
          }
        },
        "category": "domain-intelligence",
        "discoverable": true
      }
    },
    "x402Version": 2
  }
]

UPTIME

07-20 · uptime 100.0% · 1115ms avg07-21 · uptime 100.0% · 1132ms avg07-2007-21
RESPONSE TIME
07-20 · 1115ms avg07-20 · 1115ms avg07-21 · 1132ms avg07-21 · 1132ms avg07-2007-21
90d UPTIME 100%
UPTIME 90D 100%
AVG RESP 1124ms
TOTAL CHECKS 63

RECENT CHECKS

TIME STATUS RESP
● OK 829ms
● OK 959ms
● OK 1229ms
● OK 971ms
● OK 1069ms
● OK 1099ms
● OK 1112ms
● OK 1022ms
● OK 1202ms
● OK 1061ms
● OK 849ms
● OK 977ms
● OK 1125ms
● OK 982ms
● OK 860ms
● OK 897ms
● OK 1396ms
● OK 1019ms

OVER TIME

All charts share the 90d window selected here. Every series is also served as JSON at /api/v1/services/domain-intelligence-api/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted).

PRICE (captured 402, USD)
07-20 · $0.0207-21 · $0.02$0.0207-2007-21
SUB-SCORES (uptime + x402 compliance)
07-20 compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checksuptimecompliance07-2007-21
VOLUME (on-chain settlement, USD)
04-22 · $0.1404-23 · $304-24 · $0.0204-25 · $0.4104-26 · $0.4404-27 · $104-28 · $104-29 · $304-30 · $205-01 · $305-02 · $205-03 · $205-04 · $205-05 · $205-06 · $3105-07 · $205-08 · $505-09 · $705-10 · $305-11 · $505-12 · $605-13 · $505-14 · $305-15 · $205-16 · $305-17 · $205-18 · $305-19 · $205-20 · $205-21 · $505-22 · $405-23 · $305-24 · $305-25 · $305-26 · $305-27 · $405-28 · $305-29 · $505-30 · $405-31 · $306-01 · $406-02 · $506-03 · $306-04 · $306-05 · $306-06 · $206-07 · $206-08 · $406-09 · $206-10 · $306-11 · $206-12 · $406-13 · $106-14 · $206-15 · $0.8706-16 · $306-17 · $306-18 · $506-19 · $306-20 · $206-21 · $306-22 · $706-23 · $406-24 · $306-25 · $406-26 · $406-27 · $206-28 · $306-29 · $606-30 · $307-01 · $407-02 · $307-03 · $207-04 · $207-05 · $307-06 · $307-07 · $307-08 · $307-09 · $407-10 · $307-11 · $207-12 · $207-13 · $207-14 · $207-15 · $207-16 · $207-17 · $207-18 · $207-19 · $207-20 · $207-21 · $0.94peak $3104-2207-21

Shared payout address (9 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 10 services sharing it: a declared convention, not an individually observed measure.

DISTINCT BUYERS
04-22 · 3 buyers04-23 · 3 buyers04-24 · 2 buyers04-25 · 4 buyers04-26 · 2 buyers04-27 · 5 buyers04-28 · 5 buyers04-29 · 6 buyers04-30 · 5 buyers05-01 · 6 buyers05-02 · 3 buyers05-03 · 4 buyers05-04 · 6 buyers05-05 · 5 buyers05-06 · 6 buyers05-07 · 6 buyers05-08 · 8 buyers05-09 · 7 buyers05-10 · 7 buyers05-11 · 6 buyers05-12 · 15 buyers05-13 · 13 buyers05-14 · 12 buyers05-15 · 12 buyers05-16 · 8 buyers05-17 · 3 buyers05-18 · 4 buyers05-19 · 8 buyers05-20 · 10 buyers05-21 · 6 buyers05-22 · 4 buyers05-23 · 2 buyers05-24 · 2 buyers05-25 · 11 buyers05-26 · 10 buyers05-27 · 14 buyers05-28 · 10 buyers05-29 · 12 buyers05-30 · 12 buyers05-31 · 18 buyers06-01 · 17 buyers06-02 · 20 buyers06-03 · 22 buyers06-04 · 22 buyers06-05 · 9 buyers06-06 · 12 buyers06-07 · 7 buyers06-08 · 16 buyers06-09 · 16 buyers06-10 · 15 buyers06-11 · 21 buyers06-12 · 26 buyers06-13 · 17 buyers06-14 · 20 buyers06-15 · 23 buyers06-16 · 19 buyers06-17 · 23 buyers06-18 · 33 buyers06-19 · 35 buyers06-20 · 19 buyers06-21 · 43 buyers06-22 · 49 buyers06-23 · 36 buyers06-24 · 38 buyers06-25 · 22 buyers06-26 · 24 buyers06-27 · 25 buyers06-28 · 36 buyers06-29 · 63 buyers06-30 · 41 buyers07-01 · 43 buyers07-02 · 22 buyers07-03 · 35 buyers07-04 · 29 buyers07-05 · 39 buyers07-06 · 47 buyers07-07 · 47 buyers07-08 · 26 buyers07-09 · 43 buyers07-10 · 42 buyers07-11 · 59 buyers07-12 · 32 buyers07-13 · 14 buyers07-14 · 27 buyers07-15 · 34 buyers07-16 · 24 buyers07-17 · 26 buyers07-18 · 19 buyers07-19 · 23 buyers07-20 · 15 buyers07-21 · 15 buyerspeak 63 buyers04-2207-21

Shared payout address (9 other services). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service buyer count is attributed, the assessment block and the ranking, it is divided pro-quota by the 10 services sharing the address and can be fractional: a declared convention, not an individually observed measure.

COMPLIANCE

11/11 checks pass · grade A
  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS

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RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

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