x402 List

x402 Protocol Service Directory

pagecheck — page audits and backtests, paid in USDC

AI

Two x402 endpoints on Base. /api/audit returns a deterministic technical audit of any product or landing page as JSON (1 USDC); /api/backtest runs a trading rule you POST as data, segmented out-of-sample against buy-and-hold, every fold reported including the losers (2 USDC). Both have free live samples. Settles EIP-3009 exact with no facilitator.

Pay from $1.00 to $5.00 in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-07-30 · no on-chain settlement recorded yet

BASE URL https://pagecheck.46-224-214-65.sslip.io WEBSITE https://pagecheck.46-224-214-65.sslip.io ENDPOINTS 3 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-30 MONITORED SINCE 2026-07-30

ASSESSMENT

updated 2h 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
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
386ms
avg response
386ms
total checks
1
compliance A (13/14): declares the current x402 version (2)

13 of 14 x402 conformance checks pass; failing: declares the current x402 version (2). Full checklist below.

jump to compliance checklist

price $1.00 to $5.00 (p88 in AI)
price (min)
$1.00
price (max)
$5.00
category percentile (min)
p88 in AI
category percentile (max)
p90 in AI
endpoints / prices
3 / 3
model
tiered
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 $0 30d · 0 buyers
volume 30d
$0
buyers 30d
0
settlements 30d
0
first settlement
---
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
$0
max settlement 30d
$0
settled via
-

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

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

WHAT IT DOES

ai-derived

Provides website audits and backtests for product pages and stores, and trading rule backtesting.

category
website-audit
in
query params
website-auditbacktestingseoecommercetrading

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 /api/audit one product page, full audit, JSON. Free sample of the exact response shape: https://pagecheck.46-224-214-65.sslip.io/api/audit/sample. Full terms: https://pagecheck.46-224-214-65.sslip.io/api/pricing $1.00 Base USDC
GET /api/audit/store whole store via sitemap, up to 30 pages, JSON. Free sample of the exact response shape: https://pagecheck.46-224-214-65.sslip.io/api/audit/sample. Full terms: https://pagecheck.46-224-214-65.sslip.io/api/pricing $5.00 Base USDC
GET /api/backtest your trading rule, segmented out-of-sample against buy-and-hold under your own fee schedule, every fold reported including the losers. Free sample of the exact response shape: https://pagecheck.46-224-214-65.sslip.io/api/backtest/sample. Full terms: https://pagecheck.46-224-214-65.sslip.io/api/pricing $2.00 Base USDC
3 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://pagecheck.46-224-214-65.sslip.io/api/audit'
// 402 response (captured by monitor) · 3 payloads · click to expand
[
  {
    "error": "X-PAYMENT header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "decimals": 6,
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://theauditlog.com/api/audit",
        "description": "one product page, full audit, JSON. Free sample of the exact response shape: https://theauditlog.com/api/audit/sample. Full terms: https://theauditlog.com/api/pricing",
        "outputSchema": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://example.com"
            }
          },
          "output": {
            "type": "object",
            "required": [
              "result"
            ],
            "properties": {
              "result": {
                "type": "object",
                "required": true
              }
            }
          }
        },
        "maxAmountRequired": "1000000",
        "maxTimeoutSeconds": 120
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "decimals": 6,
          "presentAs": "X-PAYMENT: <settlement transaction hash>"
        },
        "payTo": "0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86",
        "scheme": "settlement-hash",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://theauditlog.com/api/audit",
        "description": "one product page, full audit, JSON — alternative to EIP-3009 for callers that cannot sign one: send 1 USDC on Base to 0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86 yourself, then repeat this request with header X-PAYMENT set to the transaction hash. 1 confirmation, one hash one call.",
        "maxAmountRequired": "1000000",
        "maxTimeoutSeconds": 300
      }
    ],
    "x402Version": 1
  },
  {
    "error": "X-PAYMENT header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "decimals": 6,
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://theauditlog.com/api/audit/store",
        "description": "whole store via sitemap, up to 30 pages, JSON. Free sample of the exact response shape: https://theauditlog.com/api/audit/sample. Full terms: https://theauditlog.com/api/pricing",
        "outputSchema": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "url": "https://example.com"
            }
          },
          "output": {
            "type": "object",
            "required": [
              "result"
            ],
            "properties": {
              "result": {
                "type": "object",
                "required": true
              }
            }
          }
        },
        "maxAmountRequired": "5000000",
        "maxTimeoutSeconds": 120
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "decimals": 6,
          "presentAs": "X-PAYMENT: <settlement transaction hash>"
        },
        "payTo": "0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86",
        "scheme": "settlement-hash",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://theauditlog.com/api/audit/store",
        "description": "whole store via sitemap, up to 30 pages, JSON — alternative to EIP-3009 for callers that cannot sign one: send 5 USDC on Base to 0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86 yourself, then repeat this request with header X-PAYMENT set to the transaction hash. 1 confirmation, one hash one call.",
        "maxAmountRequired": "5000000",
        "maxTimeoutSeconds": 300
      }
    ],
    "x402Version": 1
  },
  {
    "error": "X-PAYMENT header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "decimals": 6,
          "assetTransferMethod": "eip3009"
        },
        "payTo": "0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86",
        "scheme": "exact",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://theauditlog.com/api/backtest",
        "description": "your trading rule, segmented out-of-sample against buy-and-hold under your own fee schedule, every fold reported including the losers. Free sample of the exact response shape: https://theauditlog.com/api/backtest/sample. Full terms: https://theauditlog.com/api/pricing",
        "outputSchema": {
          "input": {
            "type": "http",
            "method": "POST",
            "bodyType": "json",
            "bodyFields": {
              "asset": {
                "type": "string",
                "required": true
              },
              "long_when": {
                "type": "object",
                "required": true
              },
              "timeframe": {
                "type": "string",
                "required": true
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "folds"
            ],
            "properties": {
              "folds": {
                "type": "array",
                "required": true
              },
              "verdict": {
                "type": "string",
                "required": true
              }
            }
          }
        },
        "maxAmountRequired": "2000000",
        "maxTimeoutSeconds": 120
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "decimals": 6,
          "presentAs": "X-PAYMENT: <settlement transaction hash>"
        },
        "payTo": "0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86",
        "scheme": "settlement-hash",
        "network": "base",
        "mimeType": "application/json",
        "resource": "https://theauditlog.com/api/backtest",
        "description": "your trading rule, segmented out-of-sample against buy-and-hold under your own fee schedule, every fold reported including the losers — alternative to EIP-3009 for callers that cannot sign one: send 2 USDC on Base to 0x2A29dEd8115A8cC5be54DbB6f7BeE505607a0c86 yourself, then repeat this request with header X-PAYMENT set to the transaction hash. 1 confirmation, one hash one call.",
        "maxAmountRequired": "2000000",
        "maxTimeoutSeconds": 300
      }
    ],
    "x402Version": 1
  }
]

OVER TIME

All charts share the 24h window selected here. Every series is also served as JSON at /api/v1/services/pagecheck-page-audits-and-backtests-paid-in-usdc/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
07-30 · uptime 100.0% · 233ms avg07-3007-30
24h UPTIME 100%
RESPONSE TIME
07-30 · 233ms avg07-30 · 233ms avg07-3007-30
AVG RESP 353ms
PRICE (captured 402, USD)
building price history ($2.00)

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

SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)
VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

13/14 checks pass · grade A · failing: declares the current x402 version (2)
  • 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 (9) · click to expand
TIME STATUS RESP
● SLOW 1313ms
● OK 518ms
● OK 220ms
● OK 69ms
● OK 154ms
● OK 164ms
● OK 149ms
● OK 207ms
● OK 386ms

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