Evidence row 570299

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Get an overview of the whole monitored x402 catalog: how many endpoints are monitored, how many fall into each verdict (proceed, caution, avoid, free, insufficient_data), and when scores were last computed. Use it for context or reporting, for example to tell a user how much of the x402 ecosystem passes checks. It says nothing about any single endpoint: use check_endpoint for one endpoint, top_endpoints for a ranked list, or check_payment before paying. Read-only, free, no parameters.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "catalog_stats"
    },
    {
      "description": "Get the trust verdict for one x402 endpoint: score (0-100), grade (A-F), and verdict (proceed, caution, avoid, free, or insufficient_data), plus uptime, delivery-test status, payout-wallet incidents, and how many independent buyers stand behind the seller's buyer wallets (we count customers, not wallets). Use it when you're deciding whether an endpoint is trustworthy at all, before you have a price quote. When you already have the 402 quote (amount and payTo) and are about to pay, use check_payment instead: it runs this same check and also verifies the price and wallet. To discover good endpoints rather than check a known one, use top_endpoints. Read-only and free; reflects monitoring every 30 minutes and real test payments, so a brand-new endpoint may return insufficient_data. Endpoints not in the catalog return monitored: false. API docs: https://github.com/Book0fEli/lumiere-paycheck/blob/main/docs/api.md",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "url": {
            "description": "Full URL of the x402 endpoint including path, exactly as the agent will call it, e.g. https://api.example.com/v1/price.",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "check_endpoint"
    },
    {
      "description": "Decide whether a specific x402 payment should go through: returns allow true/false with reasons. Checks the endpoint's trust verdict, that the amount is within your cap and not above the monitored price, and that the payTo wallet matches the one we've observed (catches swapped or hijacked wallets). Optionally (minOrganicShare) it also requires that enough of the seller's volume comes from independent buyers. Intended for right before a payment, with the amount, payTo, and network from the endpoint's 402 quote; allow is true only when every rule passes. Use check_endpoint instead if you only want an endpoint's grade without a quote in hand. Read-only and free; it doesn't make or block the payment itself. When allow is false, the reasons list explains why. API docs: https://github.com/Book0fEli/lumiere-paycheck/blob/main/docs/api.md",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "allowCaution": {
            "description": "false = deny endpoints with a caution verdict too, not just avoid (default true)",
            "type": "boolean"
          },
          "amount": {
            "description": "Amount about to be paid, atomic units (USDC has 6 decimals: 10000 = $0.01)",
            "type": "string"
          },
          "hasAccess": {
            "description": "true if you have your own account, API key or sign-in with this seller. For endpoints that need the seller's sign-in on top of x402, allowCaution/requireVerified then don't block (we couldn't confirm delivery only because we can't sign in).",
            "type": "boolean"
          },
          "maxAmount": {
            "description": "Your hard cap for this payment in atomic units (USDC: 1000000 = $1). Payments above it are denied.",
            "type": "string"
          },
          "minOrganicShare": {
            "description": "Optional, 0-1: deny sellers where less than this share of 30-day volume comes from independent buyers (e.g. 0.5). Not applied to sellers whose buyers haven't been reviewed yet.",
            "maximum": 1,
            "minimum": 0,
            "type": "number"
          },
          "network": {
            "description": "Network from the quote, e.g. eip155:8453",
            "type": "string"
          },
          "payTo": {
            "description": "Wallet address from the endpoint's 402 quote",
            "type": "string"
          },
          "priceTolerance": {
            "description": "Optional, 0-0.5 (default 0.02 = 2%): how far above the endpoint's recent prices still counts as the same price, for sellers whose price drifts (pegged to BTC, gas or FX). Bigger jumps are denied as overcharges.",
            "maximum": 0.5,
            "minimum": 0,
            "type": "number"
          },
          "requireVerified": {
            "description": "true = only allow endpoints that delivered on a real test payment (default false)",
            "type": "boolean"
          },
          "url": {
            "description": "Full URL of the x402 endpoint you are about to pay, including path",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "check_payment"
    },
    {
      "description": "Get instructions for buying the detailed paid report on one x402 endpoint (score breakdown, current price quote, wallet and price history, test-payment results). Returns the report URL, price, and network; it doesn't buy the report itself. The report is an x402 endpoint that your agent pays with any x402 client. Use it only when the free check_endpoint result isn't enough and the user wants the full history. The response also lists the other paid x402 checks (wallet risk, batch grades, watch alerts), paid the same way. Endpoints we don't monitor return 404 on the report URL and are never charged. API docs: https://github.com/Book0fEli/lumiere-paycheck/blob/main/docs/api.md",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "url": {
            "description": "Full URL of the x402 endpoint you want the paid report for, including path",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "get_full_report"
    },
    {
      "description": "After paying an x402 endpoint, report whether you got what you paid for. Free, optional, and open to every agent: send the receipt from a Lumière PayCheck allow decision (paid plans), or the endpoint url plus the payment's transaction hash (anyone; we verify the payment on-chain, Base or Solana, within 24 hours). Answer the short questions in answers: gotResponse, matchedListing (yes/partly/no), charged (as_quoted/more/twice), dataUsable (yes/unsure/no), wouldPayAgain. Reports never change a grade by themselves: confirmations from independent buyers move the endpoint up our paid-test queue, and serious problems (nothing came back, charged more or twice) trigger a re-test; only our own paid test changes the grade. One report per payment; the seller's own wallet can't report on itself.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "answers": {
            "properties": {
              "charged": {
                "description": "Were you charged the quoted amount, once?",
                "enum": [
                  "as_quoted",
                  "more",
                  "twice"
                ],
                "type": "string"
              },
              "dataUsable": {
                "description": "Did the data look real and usable?",
                "enum": [
                  "yes",
                  "unsure",
                  "no"
                ],
                "type": "string"
              },
              "gotResponse": {
                "description": "Did you get a response after paying?",
                "type": "boolean"
              },
              "matchedListing": {
                "description": "Did it match what the listing promised?",
                "enum": [
                  "yes",
                  "partly",
                  "no"
                ],
                "type": "string"
              },
              "wouldPayAgain": {
                "description": "Would you pay this endpoint again?",
                "type": "boolean"
              }
            },
            "type": "object"
          },
          "httpStatus": {
            "description": "HTTP status the endpoint returned after payment, e.g. 200 or 500",
            "maximum": 9007199254740991,
            "minimum": -9007199254740991,
            "type": "integer"
          },
          "outcome": {
            "description": "Optional shortcut instead of answers: delivered = usable; problem = error, empty, wrong or overcharged",
            "enum": [
              "delivered",
              "problem"
            ],
            "type": "string"
          },
          "problems": {
            "description": "Short descriptions, e.g. 'missing field price', 'HTTP 500'",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "receipt": {
            "description": "The receipt from a Lumière PayCheck 'allow' decision (paid plans). Or send url + tx instead.",
            "type": "string"
          },
          "tx": {
            "description": "The payment's transaction hash (Base 0x...) or Solana signature",
            "type": "string"
          },
          "url": {
            "description": "The endpoint you paid (with tx, when you have no receipt)",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "report_outcome"
    },
    {
      "description": "List the x402 endpoints that are currently safest to pay (verdict proceed or caution, no payout-wallet incidents), best first, with score, grade, verdict, and whether a real test payment was delivered. Use it to discover reliable endpoints or pick between providers. To evaluate one specific endpoint use check_endpoint; to approve a payment use check_payment. Read-only and free; rankings update as monitoring runs (every 30 minutes).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "limit": {
            "description": "How many endpoints to return, 1-50 (default 10)",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "top_endpoints"
    }
  ]
}

What the leaf hashes

{"body":"1e3fdb3989a84f13cfd99b2154b658fd66cb5d205720610b738bb6931422fb1b","id":570299,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793139692090277,"prev":null,"subject":"1d4850c9-e047-4489-b95b-f1e232208056","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x89f3982d01e843c4dd49d028b4d519ca3e734cd8ad607671a7a60a53e338f46e
2. 0x7fdec6f407c5b64610b8515e2336255f7d435d4be75224bfc1ff692d71af3322
3. 0xc184e9114087e6bcf3344dfc702357699625998a81fa32f0892d78b6903222e8
4. 0xa0ba618047705a75e9c62694087a52044ca7ab34b3aa02cd55cd35e0c9bed743
5. 0xbec32d4bc9512110783f56e773d495dd83f402132572c4cc2999f7974fabb946
6. 0x39bae91d18867d7b3dd519994032a36d5f7c1644ec13e22a22a04895270b5172
7. 0xce589c8683a75579061179bce168ea462d20426d4ffea204f16715ac4d16fd48
8. 0x0d88b9706c16a5b6e98aef65641f38455c41aa5e1e05658f958e166f12887fca
9. 0xc14536a53015b3a93ce10335494c0ef0793063d0d6692b11dda23e772dc3f240
10. 0xd65d7379e756b1e11989336b70db4d0b37dcb5cc45ce7fb603297cbe31f10048
11. 0x0e491e41680f12f7d8bdf222ee07202258510c3550459071f98f077368a5cd2f
12. 0x30c799f301803795a41119ff9181a1ecb65705ab464b7ef061de2b33772eca73
13. 0x6251e2be57e8d16b82579481d181c265d75096882014489550b74a728741f2f1
14. 0x4964f0806efde5ed25f60da2b45d78cd2e0f07d67e64aad2822f6016ad973c47
15. 0x3c500ec3d3edf0c74b87a6ca8fcd77656bfbe03db3d478bd0c184d0c88839c6b
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4