x402 List

x402 Protocol Service Directory

Visibility AI Audit API

AI PAYMENT-READY

payment-ready until 2026-08-14

Pay-per-call AI visibility / AEO audit API. Score how readable a website is to AI assistants and agents (llms.txt, schema, bots, FAQ), generate fixes, and run competitor gaps. USDC on Base via x402 — no API keys.

Pay from $0.01 to $0.55 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-07-28 · no on-chain settlement recorded yet

BASE URL https://visibility.gleefulai.com WEBSITE https://visibility.gleefulai.com ENDPOINTS 14 NETWORK Base ASSET USDC MEMBER SINCE 2026-07-28 MONITORED SINCE 2026-07-28

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 96.5%
uptime 24h
0%
uptime 7d
60.7%
uptime 30d
96.5%
uptime 90d
96.5%
response p95
797ms
avg response
418ms
total checks
946

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 $0.01 to $0.55 (p40 in AI)
price (min)
$0.01
price (max)
$0.55
category percentile (min)
p40 in AI
category percentile (max)
p71 in AI
endpoints / prices
14 / 13
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
332d
registrar
Unstoppable Domains Inc.
hosting
custom
domain created
2025-09-12

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
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
-
max settlement 30d
-
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

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
POST /api/audit/deep $0.35 Base USDC header
POST /api/audit/full $0.15 Base USDC header
POST /api/audit/score $0.06 Base USDC header
POST /api/bots/audit $0.12 Base USDC header
POST /api/cite/check $0.20 Base USDC header
POST /api/cite/sources $0.30 Base USDC header
POST /api/compare/gap $0.50 Base USDC header
POST /api/compare/suggest $0.08 Base USDC header
POST /api/content/answerability $0.12 Base USDC header
POST /api/fixes/generate $0.55 Base USDC header
POST /api/llms/generate $0.25 Base USDC header
POST /api/meta/extract $0.02 Base USDC header
POST /api/probe/fetch $0.01 Base USDC header
POST /api/schema/generate $0.40 Base USDC header
14 endpoints

REQUEST / RESPONSE EXAMPLE

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

// request
curl -i -X POST 'https://visibility.gleefulai.com/api/audit/deep'
// 402 response (captured by monitor) · 14 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "60000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/audit/score",
      "mimeType": "application/json",
      "description": "Fast AI visibility score with top issues"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "150000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/audit/full",
      "mimeType": "application/json",
      "description": "Full AI visibility audit with categories and recommendations"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "350000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/audit/deep",
      "mimeType": "application/json",
      "description": "Multi-page deep AI visibility audit"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "550000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/fixes/generate",
      "mimeType": "application/json",
      "description": "Generate copy-paste fixes for AI visibility issues"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "500000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/compare/gap",
      "mimeType": "application/json",
      "description": "Competitor AI visibility gap analysis"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "80000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/compare/suggest",
      "mimeType": "application/json",
      "description": "Suggest competitor domains for gap analysis"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "120000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/bots/audit",
      "mimeType": "application/json",
      "description": "AI crawler / bot access audit (GPTBot, ClaudeBot, etc.)"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/llms/generate",
      "mimeType": "application/json",
      "description": "Generate a production-ready /llms.txt for the site"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "200000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/cite/check",
      "mimeType": "application/json",
      "description": "Simulated brand mention/citation check across 1–5 buyer prompts (LLM, not live engines)"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "400000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/schema/generate",
      "mimeType": "application/json",
      "description": "Generate Organization / WebSite / SoftwareApplication / FAQPage JSON-LD pack"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "120000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/content/answerability",
      "mimeType": "application/json",
      "description": "Content answerability score (FAQ density, claims, extractability)"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "300000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/cite/sources",
      "mimeType": "application/json",
      "description": "Simulated citation source gap — which third-party domains get cited instead of you"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/meta/extract",
      "mimeType": "application/json",
      "description": "Extract title, meta description, Open Graph, canonical, JSON-LD types"
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x9b916480d6D32c055563cD0B191543E9851F4E2F",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://visibility.gleefulai.com/api/probe/fetch",
      "mimeType": "application/json",
      "description": "Cheap URL probe — status, redirects, content-type, X-Robots-Tag"
    },
    "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/visibility-ai-audit-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
08-13 · uptime 0.0%08-13 · uptime 0.0%08-1308-13
24h UPTIME 0%
RESPONSE TIME
no data
AVG RESP 418ms
PRICE (captured 402, USD)
08-12 · $0.17508-13 · $0.175$0.17508-1208-13

Median across 14 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
08-12 uptime: 96.8% compliance: 100% checks08-13 uptime: 96.5% 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 yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-28 · last up 2026-08-07

  • 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
○ DOWN 62ms network: fetch failed
○ DOWN 102ms network: fetch failed
○ DOWN 61ms network: fetch failed
○ DOWN 68ms network: fetch failed
○ DOWN 75ms network: fetch failed
○ DOWN 64ms network: fetch failed
○ DOWN 60ms network: fetch failed
○ DOWN 121ms network: fetch failed
○ DOWN 99ms network: fetch failed
○ DOWN 219ms network: fetch failed
○ DOWN 63ms network: fetch failed
○ DOWN 64ms network: fetch failed
○ DOWN 77ms network: fetch failed
○ DOWN 365ms network: fetch failed
○ DOWN 79ms network: fetch failed
○ DOWN 223ms network: fetch failed
○ DOWN 420ms network: fetch failed
○ DOWN 64ms network: fetch failed

EMBED THIS BADGE

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