x402 List

x402 Protocol Service Directory

Hugen Intel API

Blockchain PAYMENT-READY imported

payment-ready until 2026-08-20

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

Crypto due diligence API. Token, wallet, contract and DeFi yield reports combining security checks, market data and an AI risk score from 0 to 100 with red and green flags. Full report $0.50, lite variant without AI prose $0.02, in USDC on Base or Solana.

Pay from $0.50 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-02-20 · $195.27 all-time · settled via coinbase, dexter

BASE URL https://intel.hugen.tokyo ENDPOINTS 3 NETWORK Base / Solana ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

ASSESSMENT

updated 3h 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
677ms
avg response
469ms
total checks
2,131

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.50 (p95 in Blockchain)
price (min)
$0.50
category percentile (min)
p95 in Blockchain
endpoints / prices
3 / 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.

domain age
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction $5.84975 30d · 424 buyers
volume 30d
$5.84975
buyers 30d
424
settlements 30d
4,989
first settlement
2026-02-20
last settlement
2026-08-13
top buyer share
69% of 30d volume
trend 7d vs 30d
0.86x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$195.27
settlements all-time
73,491
median settlement 30d
$0.01
max settlement 30d
$0.50
settled via
coinbase ($54.53, 4,940 tx), dexter ($3.03, 49 tx)

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

Currently sharing this payout address with Content Intelligence API, Domain Intelligence API, Gotobi Calendar API, Hugen DeFi Intelligence API, Hugen Visual API, Hugen Weather API, Scout Multi-Source Intelligence API, Tick Aggregator FX API, Whale Intelligence API.

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

WHAT IT DOES

ai-derived

Provides AI-synthesized due diligence reports for crypto assets including tokens, wallets, contracts, and yield opportunities.

category
crypto-due-diligence
in
query params
blockchaincrypto-analysisdue-diligencerisk-assessmentai-synthesis

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 402 CHANNEL
GET /intel/contract-report $0.50 Base/Solana USDC header
GET /intel/token-report $0.50 Base/Solana USDC header
GET /intel/wallet-report $0.50 Base/Solana USDC header
3 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://intel.hugen.tokyo/intel/contract-report'
// 402 response (captured by monitor) · 3 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
        "amount": "500000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z",
        "amount": "500000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://intel.hugen.tokyo/intel/token-report",
      "mimeType": "application/json",
      "description": "Multi-source token due diligence report — aggregates security checks, market data, and liquidity analysis from 4+ data sources, then synthesizes an AI risk verdict with 0-100 scoring. Returns red/green flags, recommendations, and market context. One call replaces 4+ API integrations, response normalization, and LLM synthesis. Accepts USDC payments on Base and Solana"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "address": "0xdac17f958d2ee523a2206206994597c13d831ec7"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "verdict": "High risk token. Hidden owner detected with sell tax of 8%. Creator holds 23% of supply. Contract is open source but has external call patterns.",
              "risk_level": "high",
              "risk_score": 72,
              "recommendations": [
                "Revoke unlimited approvals",
                "Verify owner identity before trading",
                "Check LP lock status"
              ]
            }
          }
        },
        "tags": [
          "crypto",
          "risk",
          "ai-verdict",
          "due-diligence"
        ],
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ]
            }
          }
        },
        "category": "intelligence",
        "discoverable": true
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
        "amount": "500000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z",
        "amount": "500000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://intel.hugen.tokyo/intel/wallet-report",
      "mimeType": "application/json",
      "description": "AI-synthesized wallet intelligence — address security check, on-chain transaction analysis, activity classification (whale/bot/trader/retail), and risk scoring 0-100 with verdict. Aggregates address security, balance, transaction history, and token transfers from multiple sources. One call replaces 4+ API calls + LLM analysis. Accepts USDC payments on Base and Solana"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "verdict": "Active DeFi trader with 200+ transactions. No malicious activity detected. Primarily interacts with verified protocols.",
              "risk_score": 15,
              "classification": "active_trader"
            }
          }
        },
        "tags": [
          "crypto",
          "risk",
          "ai-verdict",
          "due-diligence"
        ],
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ]
            }
          }
        },
        "category": "intelligence",
        "discoverable": true
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
        "amount": "500000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z",
        "amount": "500000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://intel.hugen.tokyo/intel/contract-report",
      "mimeType": "application/json",
      "description": "Smart contract audit summary — verified source analysis, security flags, proxy detection, ownership analysis, and vulnerability patterns. AI-synthesized risk assessment with 0-100 score, verdict, and recommendations. One call aggregates contract source verification + security analysis + AI synthesis. Accepts USDC payments on Base and Solana"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "verdict": "Verified Solidity contract with standard ERC-20 implementation. Proxy pattern detected — upgradeable by owner.",
              "risk_score": 35,
              "is_verified": true
            }
          }
        },
        "tags": [
          "crypto",
          "risk",
          "ai-verdict",
          "due-diligence"
        ],
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ]
            }
          }
        },
        "category": "intelligence",
        "discoverable": true
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/hugen-intel-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). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
07-20 · uptime 100.0% · 442ms avg07-21 · uptime 100.0% · 411ms avg07-22 · uptime 100.0% · 367ms avg07-23 · uptime 100.0% · 338ms avg07-24 · uptime 100.0% · 342ms avg07-25 · uptime 100.0% · 435ms avg07-26 · uptime 100.0% · 408ms avg07-27 · uptime 100.0% · 399ms avg07-28 · uptime 100.0% · 423ms avg07-29 · uptime 100.0% · 515ms avg07-30 · uptime 100.0% · 472ms avg07-31 · uptime 100.0% · 470ms avg08-01 · uptime 100.0% · 461ms avg08-02 · uptime 100.0% · 455ms avg08-03 · uptime 100.0% · 445ms avg08-04 · uptime 100.0% · 556ms avg08-05 · uptime 100.0% · 547ms avg08-06 · uptime 100.0% · 491ms avg08-07 · uptime 100.0% · 538ms avg08-08 · uptime 100.0% · 606ms avg08-09 · uptime 100.0% · 675ms avg08-10 · uptime 100.0% · 526ms avg08-11 · uptime 100.0% · 444ms avg08-12 · uptime 100.0% · 475ms avg08-13 · uptime 100.0% · 449ms avg07-2008-13
90d UPTIME 100%
RESPONSE TIME
07-20 · 442ms avg07-20 · 442ms avg07-21 · 411ms avg07-21 · 411ms avg07-22 · 367ms avg07-22 · 367ms avg07-23 · 338ms avg07-23 · 338ms avg07-24 · 342ms avg07-24 · 342ms avg07-25 · 435ms avg07-25 · 435ms avg07-26 · 408ms avg07-26 · 408ms avg07-27 · 399ms avg07-27 · 399ms avg07-28 · 423ms avg07-28 · 423ms avg07-29 · 515ms avg07-29 · 515ms avg07-30 · 472ms avg07-30 · 472ms avg07-31 · 470ms avg07-31 · 470ms avg08-01 · 461ms avg08-01 · 461ms avg08-02 · 455ms avg08-02 · 455ms avg08-03 · 445ms avg08-03 · 445ms avg08-04 · 556ms avg08-04 · 556ms avg08-05 · 547ms avg08-05 · 547ms avg08-06 · 491ms avg08-06 · 491ms avg08-07 · 538ms avg08-07 · 538ms avg08-08 · 606ms avg08-08 · 606ms avg08-09 · 675ms avg08-09 · 675ms avg08-10 · 526ms avg08-10 · 526ms avg08-11 · 444ms avg08-11 · 444ms avg08-12 · 475ms avg08-12 · 475ms avg08-13 · 449ms avg08-13 · 449ms avg07-2008-13
AVG RESP 469ms
PRICE (captured 402, USD)
07-20 · $0.5008-13 · $0.50$0.5007-2008-13

Median across 3 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
07-20 compliance: 100% checks07-21 uptime: 100.0% compliance: 100% checks07-22 uptime: 100.0% compliance: 100% checks07-23 uptime: 100.0% compliance: 100% checks07-24 uptime: 100.0% compliance: 100% checks07-25 uptime: 100.0% compliance: 100% checks07-26 uptime: 100.0% compliance: 100% checks07-27 uptime: 100.0% compliance: 100% checks07-28 uptime: 100.0% compliance: 100% checks07-29 uptime: 100.0% compliance: 100% checks07-30 uptime: 100.0% compliance: 100% checks07-31 uptime: 100.0% compliance: 100% checks08-01 uptime: 100.0% compliance: 100% checks08-02 uptime: 100.0% compliance: 100% checks08-03 uptime: 100.0% compliance: 100% checks08-04 uptime: 100.0% compliance: 100% checks08-05 uptime: 100.0% compliance: 100% checks08-06 uptime: 100.0% compliance: 100% checks08-07 uptime: 100.0% compliance: 100% checks08-08 uptime: 100.0% compliance: 100% checks08-09 uptime: 100.0% compliance: 100% checks08-10 uptime: 100.0% compliance: 100% checks08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checksuptimecompliance07-2008-13

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
05-16 · $305-17 · $205-18 · $305-19 · $205-20 · $305-21 · $505-22 · $405-23 · $305-24 · $305-25 · $305-26 · $305-27 · $405-28 · $405-29 · $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 · $307-16 · $207-17 · $207-18 · $207-19 · $207-20 · $207-21 · $207-22 · $307-23 · $407-24 · $207-25 · $207-26 · $207-27 · $207-28 · $207-29 · $207-30 · $207-31 · $208-01 · $208-02 · $208-03 · $208-04 · $208-05 · $208-06 · $108-07 · $208-08 · $108-09 · $308-10 · $208-11 · $108-12 · $208-13 · $1peak $705-1608-13

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
05-16 · 10 buyers05-17 · 4 buyers05-18 · 5 buyers05-19 · 9 buyers05-20 · 12 buyers05-21 · 8 buyers05-22 · 4 buyers05-23 · 2 buyers05-24 · 2 buyers05-25 · 11 buyers05-26 · 10 buyers05-27 · 15 buyers05-28 · 11 buyers05-29 · 12 buyers05-30 · 12 buyers05-31 · 18 buyers06-01 · 17 buyers06-02 · 20 buyers06-03 · 23 buyers06-04 · 22 buyers06-05 · 9 buyers06-06 · 12 buyers06-07 · 7 buyers06-08 · 17 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 · 34 buyers06-19 · 35 buyers06-20 · 20 buyers06-21 · 44 buyers06-22 · 50 buyers06-23 · 37 buyers06-24 · 39 buyers06-25 · 23 buyers06-26 · 24 buyers06-27 · 25 buyers06-28 · 37 buyers06-29 · 64 buyers06-30 · 42 buyers07-01 · 44 buyers07-02 · 22 buyers07-03 · 35 buyers07-04 · 29 buyers07-05 · 39 buyers07-06 · 48 buyers07-07 · 47 buyers07-08 · 27 buyers07-09 · 43 buyers07-10 · 42 buyers07-11 · 59 buyers07-12 · 32 buyers07-13 · 14 buyers07-14 · 27 buyers07-15 · 35 buyers07-16 · 24 buyers07-17 · 27 buyers07-18 · 20 buyers07-19 · 24 buyers07-20 · 16 buyers07-21 · 28 buyers07-22 · 33 buyers07-23 · 34 buyers07-24 · 18 buyers07-25 · 28 buyers07-26 · 15 buyers07-27 · 23 buyers07-28 · 17 buyers07-29 · 32 buyers07-30 · 26 buyers07-31 · 37 buyers08-01 · 33 buyers08-02 · 19 buyers08-03 · 16 buyers08-04 · 15 buyers08-05 · 24 buyers08-06 · 11 buyers08-07 · 22 buyers08-08 · 13 buyers08-09 · 27 buyers08-10 · 23 buyers08-11 · 12 buyers08-12 · 16 buyers08-13 · 12 buyerspeak 64 buyers05-1608-13

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. Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-20 · last up 2026-08-13

  • 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
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 319ms
● OK 435ms
● OK 407ms
● OK 466ms
● OK 403ms
● OK 466ms
● OK 424ms
● OK 444ms
● OK 576ms
● OK 490ms
● OK 375ms
● OK 370ms
● OK 446ms
● OK 422ms
● OK 426ms
● OK 334ms
● OK 466ms
● OK 530ms

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