x402 List

x402 Protocol Service Directory

Audit Tools

Verification PAYMENT-READY

payment-ready until 2026-08-20

Evaluate an Apify actor before you use it. Send one actor ID (for example apify/instagram-scraper) and get an evidence-backed quality report: 23 built-in criteria like reliability, 30-day failure rate, advertised-field truth, and cost per usable item, deep-scan criteria measured from live funded runs, or your own rubric in plain English. Use it to audit a scraper, compare actor quality, or pick the best actor. Returns JSON with per-criterion scores, evidence, and a verdict.

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

first settlement 2026-07-25 · $3.00 all-time · settled via coinbase

BASE URL https://audit-tools.ai WEBSITE https://audit-tools.ai ENDPOINTS 1 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-25 MONITORED SINCE 2026-07-25

ASSESSMENT

updated 1h ago

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

reliability 99.6%
uptime 24h
100%
uptime 7d
100%
uptime 30d
99.6%
uptime 90d
99.6%
response p95
2207ms
avg response
989ms
total checks
1,712

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 $1.00 (p94 in Verification)
price (min)
$1.00
category percentile (min)
p94 in Verification
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 $3.00 30d · 1 buyers · top buyer 100%
volume 30d
$3.00
buyers 30d
1
settlements 30d
3
first settlement
2026-07-25
last settlement
2026-07-29
top buyer share
100% of 30d volume
trend 7d vs 30d
0.00x the 30d daily rate
networks
eip155:8453
volume all-time
$3.00
settlements all-time
3
median settlement 30d
$1.00
max settlement 30d
$1.00
settled via
coinbase ($3.00, 3 tx)

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.

CHANGES

1 event, detecting since 2026-07-24

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes schema changed 19d ago (1 since 2026-07-24)

schema changed · 19d ago

schema removed GET /api/evaluations exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 1 application/json

schema added GET /api/evaluations exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 2

see all changes for this service

WHAT IT DOES

ai-derived

Evaluates Apify actors to provide quality reports based on various criteria

category
actor-evaluation
in
query params
actor-evaluationquality-assessmentapify-integration

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 /api/evaluations Evaluate an Apify actor before you use it. Send one actor ID (for example apify/instagram-scraper) and get an evidence-backed quality report: 23 built-in criteria like reliability, 30-day failure rate, advertised-field truth, and cost per usable item, deep-scan criteria measured from live funded runs, or your own rubric in plain English. Use it to audit a scraper, compare actor quality, or pick the best actor. Returns JSON with per-criterion scores, evidence, and a verdict. $1.00 Base USDC header
1 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i 'https://audit-tools.ai/api/evaluations'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x95de884E9eb3F90E496200693d94a636942a130D",
        "amount": "1000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://audit-tools.ai/api/evaluations",
      "mimeType": "application/json",
      "description": "Evaluate an Apify actor before you use it. Send one actor ID (for example apify/instagram-scraper) and get an evidence-backed quality report: 23 built-in criteria like reliability, 30-day failure rate, advertised-field truth, and cost per usable item, deep-scan criteria measured from live funded runs, or your own rubric in plain English. Use it to audit a scraper, compare actor quality, or pick the best actor. Returns JSON with per-criterion scores, evidence, and a verdict."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "mode": "full",
              "targets": [
                "apify/instagram-scraper"
              ]
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "targets",
                    "mode"
                  ],
                  "properties": {
                    "mode": {
                      "enum": [
                        "full"
                      ],
                      "type": "string",
                      "description": "Full evaluation (all available deep-scan criteria)"
                    },
                    "targets": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 1,
                      "minItems": 1,
                      "description": "One Apify actor ID or URL, e.g. apify/instagram-scraper"
                    },
                    "customCriteria": {
                      "type": "array",
                      "description": "Optional custom rubric: your own criteria to score the actor against, each with a name and a plain-language description of what to measure"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 24h selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/audit-tools/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
08-13 · uptime 100.0% · 975ms avg08-1308-13
24h UPTIME 100%
RESPONSE TIME
08-13 · 975ms avg08-13 · 975ms avg08-1308-13
AVG RESP 989ms
PRICE (captured 402, USD)
08-12 · $1.0008-13 · $1.00$1.0008-1208-13
SUB-SCORES (uptime + x402 compliance)
08-12 uptime: 99.6% compliance: 100% checks08-13 uptime: 99.6% compliance: 100% checksuptimecompliance08-1208-13

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)
no on-chain volume in the last 24h
DISTINCT BUYERS
no distinct buyers in the last 24h

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-25 · 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 739ms
● OK 1482ms
● OK 972ms
● OK 882ms
● OK 929ms
● OK 825ms
● OK 1471ms
● OK 912ms
● SLOW 2083ms
● OK 1306ms
● OK 735ms
● OK 672ms
● OK 874ms
● OK 1163ms
● OK 784ms
● OK 1436ms
● OK 758ms
● OK 1038ms

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[ update this listing ]

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