x402 List

x402 Protocol Service Directory

x402watch

Data PAYMENT-READY imported

payment-ready until 2026-08-20

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

Analytics API for the x402 ecosystem. Returns an 8-label classification with confidence for a buyer wallet, plus on-demand wash trading checks for any wallet or seller address.

Pay from $0.005 to $0.05 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

first settlement 2026-04-23 · $33.60 all-time · settled via coinbase

BASE URL https://api.x402.printmoneylab.com ENDPOINTS 2 NETWORK Base / Solana ASSET USDC MEMBER SINCE 2026-07-20 MONITORED SINCE 2026-07-20

ASSESSMENT

updated 4h 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
965ms
avg response
693ms
total checks
2,131

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 $0.005 to $0.05 (p36 in Data)
price (min)
$0.005
price (max)
$0.05
category percentile (min)
p36 in Data
category percentile (max)
p62 in Data
endpoints / prices
2 / 2
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
151d
registrar
Porkbun LLC
hosting
custom
domain created
2026-03-13

Identity facts, not a risk score.

traction $5.608 30d · 218 buyers
volume 30d
$5.608
buyers 30d
218
settlements 30d
986
first settlement
2026-04-23
last settlement
2026-08-13
top buyer share
60% of 30d volume
trend 7d vs 30d
0.06x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$33.60
settlements all-time
8,334
median settlement 30d
$0.002
max settlement 30d
$0.10
settled via
coinbase ($11.22, 986 tx)

Attributed pro-quota: this payout address is shared, so volume is the operator-level figure divided by the services sharing it, while buyer and transaction counts stay whole. A declared convention, not an individually observed measure, and still a conservative undercount.

Currently sharing this payout address with KR Crypto Intelligence.

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

WHAT IT DOES

ai-derived

Provides blockchain analytics and monitoring services for wallet addresses and transactions

category
blockchain-analytics
in
path params and body
blockchain-analyticswallet-monitoringtransaction-trackingdispute-resolutiontrend-analysis

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/v1/buyers/:address/profile $0.005 Base/Solana USDC header
POST /api/v1/wash/check $0.05 Base/Solana USDC header
2 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /api/v1/buyers/:address/profile returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://api.x402.printmoneylab.com/api/v1/buyers/:address/profile'
// 402 response (captured by monitor) · 2 payloads · click to expand
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "resource": "https://api.x402.printmoneylab.com/api/v1/buyers/:address/profile"
        },
        "payTo": "0xcF9223eCe895258dEa8D288AEBcf846Ab8E342fB",
        "amount": "5000",
        "scheme": "exact",
        "network": "eip155:8453",
        "resource": "https://api.x402.printmoneylab.com/api/v1/buyers/:address/profile",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "resource": "https://api.x402.printmoneylab.com/api/v1/buyers/:address/profile"
        },
        "payTo": "3Ywxk31SvWKwZBdY6bLvjmn5h4mzWcT3HJ5UZbYXoVy9",
        "amount": "5000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "https://api.x402.printmoneylab.com/api/v1/buyers/:address/profile",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.x402.printmoneylab.com/api/v1/buyers/:address/profile",
      "mimeType": "application/json",
      "description": "Single buyer wallet's 8-label classification with confidence, all services used, and transaction patterns."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "pathParams": {
              "address": ":address"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "label": "organic_user",
              "address": "0x...",
              "confidence": 0.85
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": "/api/v1/buyers/:address/profile"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "resource": "https://api.x402.printmoneylab.com/api/v1/wash/check"
        },
        "payTo": "0xcF9223eCe895258dEa8D288AEBcf846Ab8E342fB",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "resource": "https://api.x402.printmoneylab.com/api/v1/wash/check",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "resource": "https://api.x402.printmoneylab.com/api/v1/wash/check"
        },
        "payTo": "3Ywxk31SvWKwZBdY6bLvjmn5h4mzWcT3HJ5UZbYXoVy9",
        "amount": "50000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "resource": "https://api.x402.printmoneylab.com/api/v1/wash/check",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.x402.printmoneylab.com/api/v1/wash/check",
      "mimeType": "application/json",
      "description": "On-demand wash analysis for any wallet or seller address."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "0x..."
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "label": "suspected_wash",
              "address": "0x...",
              "confidence": 0.9
            }
          }
        },
        "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": [
                    "address"
                  ],
                  "properties": {
                    "address": {
                      "type": "string",
                      "description": "Wallet or seller address"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "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/x402watch/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% · 765ms avg08-1308-13
24h UPTIME 100%
RESPONSE TIME
08-13 · 765ms avg08-13 · 765ms avg08-1308-13
AVG RESP 693ms
PRICE (captured 402, USD)
08-12 · $0.027508-13 · $0.0275$0.027508-1208-13

Median across 2 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% 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)
building volume history (1 day so far)

Shared payout address (1 other service). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 2 services sharing it: a declared convention, not an individually observed measure.

DISTINCT BUYERS
building buyer history (1 day so far)

Shared payout address (1 other service). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Per-service buyer and transaction counts are shown whole (integers), not divided; only volume is attributed pro-quota. A declared convention, not an individually observed measure.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-20 · 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 680ms
● OK 773ms
● OK 759ms
● OK 689ms
● OK 719ms
● OK 790ms
● OK 783ms
● OK 832ms
● OK 803ms
● OK 792ms
● OK 803ms
● OK 915ms
● OK 840ms
● OK 878ms
● OK 761ms
● OK 750ms
● OK 745ms
● OK 708ms

EMBED THIS BADGE

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status
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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.

[ update this listing ]

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[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/x402watch/update.