x402 List

x402 Protocol Service Directory

●

Visibility AI Audit API

AI

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 5h 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
471ms
avg response
418ms
total checks
24
compliance A (14/14)

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

jump to compliance checklist

price $0.01 to $0.55 (p52 in AI)
price (min)
$0.01
price (max)
$0.55
category percentile (min)
p52 in AI
category percentile (max)
p75 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
318d
registrar
Unstoppable Domains Inc.
hosting
custom
domain created
2025-09-12

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 AI-powered visibility auditing and analysis services for websites and content

category
ai-audit
in
body
auth
none
ai-auditseocontent-analysisvisibility-scorecompetitor-analysisfix-generationsource-citationschema-generation

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
POST /api/audit/deep $0.35 Base USDC
POST /api/audit/full $0.15 Base USDC
POST /api/audit/score $0.06 Base USDC
POST /api/bots/audit $0.12 Base USDC
POST /api/cite/check $0.20 Base USDC
POST /api/cite/sources $0.30 Base USDC
POST /api/compare/gap $0.50 Base USDC
POST /api/compare/suggest $0.08 Base USDC
POST /api/content/answerability $0.12 Base USDC
POST /api/fixes/generate $0.55 Base USDC
POST /api/llms/generate $0.25 Base USDC
POST /api/meta/extract $0.02 Base USDC
POST /api/probe/fetch $0.01 Base USDC
POST /api/schema/generate $0.40 Base USDC
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 share the 30d window selected here. 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
07-28 · uptime 100.0% · 417ms avg07-2807-28
30d UPTIME 100%
RESPONSE TIME
07-28 · 417ms avg07-28 · 417ms avg07-2807-28
AVG RESP 418ms
PRICE (captured 402, USD)
building price history ($0.17)

Median across 14 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

14/14 checks pass · grade A
  • 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) · click to expand
TIME STATUS RESP
● OK 407ms
● OK 463ms
● OK 400ms
● OK 401ms
● OK 396ms
● OK 441ms
● OK 393ms
● OK 369ms
● OK 367ms
● OK 397ms
● OK 349ms
● OK 412ms
● OK 385ms
● OK 395ms
● OK 454ms
● OK 437ms
● OK 593ms
● OK 420ms
18 of 43 checks

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RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

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