x402 List

x402 Protocol Service Directory

Hugen Visual API

Compute PAYMENT-READY imported

payment-ready until 2026-09-11

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

Renders any public URL to a base64 JPEG or PNG screenshot, with full-page capture, CSS selector targeting, device presets and dark mode. Returns page title, file size and render time. Paid per capture in USDC on Base or Solana.

Part of the Hugen operator hub

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

BASE URL https://visual.hugen.tokyo ENDPOINTS 1 NETWORK Base / Solana ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

VERDICT

ranking generation 3

mixed 73/100 #12 of 14 in Compute by measured score

What the score read on this service: status online, 100% uptime 30d, 3315ms response p95, x402 compliance 14 of 14, $0.02 price against the category. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Compute, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 14 listings, this one among them. That set is wider than the 14 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN COMPUTE

Other Compute services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
Coprocesseur déterministe strong 96 99.9% ---
WAKE402 strong 94 100% ---
PennyRail solid 90 100% ---
QuickNode solid 89 100% $0
Relaystation solid 88 100% ---
5 of 13 other ranked services in Compute · see the whole category

ASSESSMENT

updated 4h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
3315ms
avg response
1868ms
total checks
2,718

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 $0.02 (p97 in Compute)
price (min)
$0.02
category percentile (min)
p97 in Compute
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.

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

Identity facts, not a risk score.

traction ---

This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /visual/screenshot $0.02 Base/Solana USDC header
1 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://visual.hugen.tokyo/visual/screenshot'
// 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": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "payTo": "4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visual.hugen.tokyo/visual/screenshot",
      "mimeType": "application/json",
      "description": "Screenshot any public URL — returns base64 JPEG/PNG with metadata (page title, file size, render time). Full-page scroll capture, CSS selector targeting, device emulation (iPhone 15 Pro, Pixel 7, iPad Pro 12.9), dark mode, ad/cookie banner auto-removal. No browser infrastructure needed, no server costs. Pay per capture. Accepts USDC payments on Base and Solana"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://github.com/coinbase/x402",
              "width": "1280",
              "format": "jpeg",
              "height": "720"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "url": "https://github.com/coinbase/x402",
              "format": "jpeg",
              "viewport": {
                "width": 1280,
                "height": 720
              },
              "page_title": "GitHub - coinbase/x402: An open protocol for internet-native payments",
              "render_time_ms": 1847,
              "file_size_bytes": 48320
            }
          }
        },
        "tags": [
          "screenshot",
          "pdf",
          "rendering"
        ],
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ]
            }
          }
        },
        "category": "visual-capture",
        "discoverable": true
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/hugen-visual-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
08-06 · uptime 100.0% · 1557ms avg08-07 · uptime 100.0% · 1752ms avg08-08 · uptime 100.0% · 1909ms avg08-09 · uptime 100.0% · 2042ms avg08-10 · uptime 100.0% · 1716ms avg08-11 · uptime 100.0% · 2416ms avg08-12 · uptime 100.0% · 2048ms avg08-13 · uptime 100.0% · 1655ms avg08-14 · uptime 100.0% · 1409ms avg08-15 · uptime 100.0% · 1604ms avg08-16 · uptime 100.0% · 1649ms avg08-17 · uptime 100.0% · 1781ms avg08-18 · uptime 100.0% · 1495ms avg08-19 · uptime 100.0% · 1560ms avg08-20 · uptime 100.0% · 1614ms avg08-21 · uptime 100.0% · 1844ms avg08-22 · uptime 100.0% · 2006ms avg08-23 · uptime 100.0% · 2002ms avg08-24 · uptime 100.0% · 2652ms avg08-25 · uptime 100.0% · 1959ms avg08-26 · uptime 100.0% · 1910ms avg08-27 · uptime 100.0% · 2170ms avg08-28 · uptime 100.0% · 2658ms avg08-29 · uptime 100.0% · 1752ms avg08-30 · uptime 100.0% · 1887ms avg08-31 · uptime 100.0% · 1581ms avg09-01 · uptime 100.0% · 1941ms avg09-02 · uptime 100.0% · 2060ms avg09-03 · uptime 100.0% · 1791ms avg09-04 · uptime 100.0% · 2085ms avg08-0609-04
30d UPTIME 100%
RESPONSE TIME
08-06 · 1557ms avg08-06 · 1557ms avg08-07 · 1752ms avg08-07 · 1752ms avg08-08 · 1909ms avg08-08 · 1909ms avg08-09 · 2042ms avg08-09 · 2042ms avg08-10 · 1716ms avg08-10 · 1716ms avg08-11 · 2416ms avg08-11 · 2416ms avg08-12 · 2048ms avg08-12 · 2048ms avg08-13 · 1655ms avg08-13 · 1655ms avg08-14 · 1409ms avg08-14 · 1409ms avg08-15 · 1604ms avg08-15 · 1604ms avg08-16 · 1649ms avg08-16 · 1649ms avg08-17 · 1781ms avg08-17 · 1781ms avg08-18 · 1495ms avg08-18 · 1495ms avg08-19 · 1560ms avg08-19 · 1560ms avg08-20 · 1614ms avg08-20 · 1614ms avg08-21 · 1844ms avg08-21 · 1844ms avg08-22 · 2006ms avg08-22 · 2006ms avg08-23 · 2002ms avg08-23 · 2002ms avg08-24 · 2652ms avg08-24 · 2652ms avg08-25 · 1959ms avg08-25 · 1959ms avg08-26 · 1910ms avg08-26 · 1910ms avg08-27 · 2170ms avg08-27 · 2170ms avg08-28 · 2658ms avg08-28 · 2658ms avg08-29 · 1752ms avg08-29 · 1752ms avg08-30 · 1887ms avg08-30 · 1887ms avg08-31 · 1581ms avg08-31 · 1581ms avg09-01 · 1941ms avg09-01 · 1941ms avg09-02 · 2060ms avg09-02 · 2060ms avg09-03 · 1791ms avg09-03 · 1791ms avg09-04 · 2085ms avg09-04 · 2085ms avg08-0609-04
AVG RESP 1869ms
PRICE (captured 402, USD)
08-05 · $0.0209-04 · $0.02$0.0208-0509-04
SUB-SCORES (uptime + x402 compliance)
08-05 uptime: 99.9% compliance: 100% checks08-06 uptime: 99.9% compliance: 100% checks08-07 uptime: 99.9% compliance: 100% checks08-08 uptime: 99.9% compliance: 100% checks08-09 uptime: 99.9% compliance: 100% checks08-10 uptime: 99.9% compliance: 100% checks08-11 uptime: 99.9% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checks08-14 uptime: 100.0% compliance: 100% checks08-15 uptime: 100.0% compliance: 100% checks08-16 uptime: 100.0% compliance: 100% checks08-17 uptime: 100.0% compliance: 100% checks08-18 uptime: 100.0% compliance: 100% checks08-19 uptime: 100.0% compliance: 100% checks08-20 uptime: 100.0% compliance: 100% checks08-21 uptime: 100.0% compliance: 100% checks08-22 uptime: 100.0% compliance: 100% checks08-23 uptime: 100.0% compliance: 100% checks08-24 uptime: 100.0% compliance: 100% checks08-25 uptime: 100.0% compliance: 100% checks08-26 uptime: 100.0% compliance: 100% checks08-27 uptime: 100.0% compliance: 100% checks08-28 uptime: 100.0% compliance: 100% checks08-29 uptime: 100.0% compliance: 100% checks08-30 uptime: 100.0% compliance: 100% checks08-31 uptime: 100.0% compliance: 100% checks09-01 uptime: 100.0% compliance: 100% checks09-02 uptime: 100.0% compliance: 100% checks09-03 uptime: 100.0% compliance: 100% checks09-04 uptime: 100.0% compliance: 100% checksuptimecompliance08-0509-04

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)
This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.
DISTINCT BUYERS
This service settles on a network x402-list does not measure yet, so distinct on-chain buyers are not counted here. Shown as unmeasured, not zero.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-20 · last up 2026-09-04

  • 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 1807ms
● OK 2571ms
● OK 1653ms
● OK 1792ms
● OK 2780ms
● OK 2124ms
● OK 1833ms
● OK 1598ms
● OK 1725ms
● OK 1505ms
● SLOW 3580ms
● SLOW 2964ms
● OK 2148ms
● SLOW 2828ms
● SLOW 4045ms
● SLOW 3115ms
● SLOW 3865ms
● OK 2394ms

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