x402 List

x402 Protocol Service Directory

x402watch

Data PAYMENT-READY imported

payment-ready until 2026-09-11

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.

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

VERDICT

ranking generation 3

solid 93/100 #82 of 265 in Data by measured score

What the score read on this service: status online, 100% uptime 30d, 1727ms response p95, x402 compliance 14 of 14, $0.005 price against the category. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 265 listings, this one among them. That set is wider than the 265 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN DATA

Other Data services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
AgentFund US Economic, SEC & On-Chain Data strong 99 100% ---
API Acre strong 99 99.7% ---
ThirdMade Shelf strong 99 100% ---
WebberSites x402 Data API strong 98 100% ---
ForgeMesh Utility APIs strong 98 100% ---
5 of 264 other ranked services in Data · see the whole category

ASSESSMENT

updated 3m ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%
uptime 24h
100%
uptime 7d
99.8%
uptime 30d
100%
uptime 90d
100%
response p95
1727ms
avg response
725ms
total checks
2,719

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 (p39 in Data)
price (min)
$0.005
price (max)
$0.05
category percentile (min)
p39 in Data
category percentile (max)
p61 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
172d
registrar
Porkbun LLC
hosting
custom
domain created
2026-03-13

Identity facts, not a risk score.

traction ---

This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.

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 30d 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
08-06 · uptime 100.0% · 778ms avg08-07 · uptime 100.0% · 751ms avg08-08 · uptime 100.0% · 764ms avg08-09 · uptime 100.0% · 662ms avg08-10 · uptime 100.0% · 673ms avg08-11 · uptime 100.0% · 621ms avg08-12 · uptime 100.0% · 659ms avg08-13 · uptime 100.0% · 774ms avg08-14 · uptime 100.0% · 619ms avg08-15 · uptime 100.0% · 684ms avg08-16 · uptime 100.0% · 691ms avg08-17 · uptime 100.0% · 726ms avg08-18 · uptime 100.0% · 588ms avg08-19 · uptime 100.0% · 587ms avg08-20 · uptime 100.0% · 703ms avg08-21 · uptime 100.0% · 593ms avg08-22 · uptime 100.0% · 715ms avg08-23 · uptime 100.0% · 631ms avg08-24 · uptime 100.0% · 670ms avg08-25 · uptime 100.0% · 866ms avg08-26 · uptime 100.0% · 760ms avg08-27 · uptime 100.0% · 947ms avg08-28 · uptime 100.0% · 763ms avg08-29 · uptime 98.9% · 674ms avg08-30 · uptime 100.0% · 503ms avg08-31 · uptime 100.0% · 644ms avg09-01 · uptime 100.0% · 632ms avg09-02 · uptime 100.0% · 916ms avg09-03 · uptime 100.0% · 1150ms avg09-04 · uptime 100.0% · 1160ms avg08-0609-04
30d UPTIME 100%
RESPONSE TIME
08-06 · 778ms avg08-06 · 778ms avg08-07 · 751ms avg08-07 · 751ms avg08-08 · 764ms avg08-08 · 764ms avg08-09 · 662ms avg08-09 · 662ms avg08-10 · 673ms avg08-10 · 673ms avg08-11 · 621ms avg08-11 · 621ms avg08-12 · 659ms avg08-12 · 659ms avg08-13 · 774ms avg08-13 · 774ms avg08-14 · 619ms avg08-14 · 619ms avg08-15 · 684ms avg08-15 · 684ms avg08-16 · 691ms avg08-16 · 691ms avg08-17 · 726ms avg08-17 · 726ms avg08-18 · 588ms avg08-18 · 588ms avg08-19 · 587ms avg08-19 · 587ms avg08-20 · 703ms avg08-20 · 703ms avg08-21 · 593ms avg08-21 · 593ms avg08-22 · 715ms avg08-22 · 715ms avg08-23 · 631ms avg08-23 · 631ms avg08-24 · 670ms avg08-24 · 670ms avg08-25 · 866ms avg08-25 · 866ms avg08-26 · 760ms avg08-26 · 760ms avg08-27 · 947ms avg08-27 · 947ms avg08-28 · 763ms avg08-28 · 763ms avg08-29 · 674ms avg08-29 · 674ms avg08-30 · 503ms avg08-30 · 503ms avg08-31 · 644ms avg08-31 · 644ms avg09-01 · 632ms avg09-01 · 632ms avg09-02 · 916ms avg09-02 · 916ms avg09-03 · 1150ms avg09-03 · 1150ms avg09-04 · 1160ms avg09-04 · 1160ms avg08-0609-04
AVG RESP 725ms
PRICE (captured 402, USD)
08-05 · $0.027509-04 · $0.0275$0.027508-0509-04

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

SUB-SCORES (uptime + x402 compliance)
08-05 uptime: 100.0% compliance: 100% checks08-06 uptime: 100.0% compliance: 100% checks08-07 uptime: 100.0% compliance: 100% checks08-08 uptime: 100.0% compliance: 100% checks08-09 uptime: 100.0% compliance: 100% checks08-10 uptime: 100.0% compliance: 100% checks08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checks08-14 uptime: 100.0% compliance: 100% checks08-15 uptime: 100.0% compliance: 100% checks08-16 uptime: 100.0% compliance: 100% checks08-17 uptime: 100.0% compliance: 100% checks08-18 uptime: 100.0% compliance: 100% checks08-19 uptime: 100.0% compliance: 100% checks08-20 uptime: 100.0% compliance: 100% checks08-21 uptime: 100.0% compliance: 100% checks08-22 uptime: 100.0% compliance: 100% checks08-23 uptime: 100.0% compliance: 100% checks08-24 uptime: 100.0% compliance: 100% checks08-25 uptime: 100.0% compliance: 100% checks08-26 uptime: 100.0% compliance: 100% checks08-27 uptime: 100.0% compliance: 100% checks08-28 uptime: 100.0% compliance: 100% checks08-29 uptime: 100.0% compliance: 100% checks08-30 uptime: 100.0% compliance: 100% checks08-31 uptime: 100.0% compliance: 100% checks09-01 uptime: 100.0% compliance: 100% checks09-02 uptime: 100.0% compliance: 100% checks09-03 uptime: 100.0% compliance: 100% checks09-04 uptime: 100.0% compliance: 100% checksuptimecompliance08-0509-04

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)
This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.
DISTINCT BUYERS
This service settles on a network x402-list does not measure yet, so distinct on-chain buyers are not counted here. Shown as unmeasured, not zero.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-20 · last up 2026-09-04

  • 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 922ms
● OK 1028ms
● SLOW 1291ms
● SLOW 1126ms
● OK 1083ms
● OK 976ms
● OK 1053ms
● OK 1076ms
● SLOW 1121ms
● OK 898ms
● OK 746ms
● OK 984ms
● OK 947ms
● SLOW 1202ms
● OK 884ms
● OK 979ms
● OK 898ms
● OK 1073ms

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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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