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Evidence row 294777

Observed , by probe.mcp/1.

Kind
mcp.tools
About
endpoint 66ed25f7-206c-4f40-8af4-ec7252bc22c1
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
3977ef254db5497ef2cc5365f39163d5825a4a9dc4b13765ad72dab61270b53a
Leaf
0x70bfdd1e16f9bd2eb476cedc99c0525d2252057ea628f91f18b28a5665f587f2

What was observed

{
  "count": 36,
  "tools": [
    {
      "description": "Paid $0.005 USDC on Base or Solana exact Ethereum ABI decoding into JSON-safe typed values.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "data": {
            "maxLength": 262146,
            "type": "string"
          },
          "types": {
            "items": {
              "maxLength": 512,
              "minLength": 1,
              "type": "string"
            },
            "maxItems": 32,
            "minItems": 1,
            "type": "array"
          }
        },
        "required": [
          "types",
          "data"
        ],
        "type": "object"
      },
      "name": "abi_decode"
    },
    {
      "description": "Paid $0.005 USDC on Base or Solana exact Ethereum ABI encoding from Solidity typed JSON values to calldata-ready hex.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "types": {
            "items": {
              "maxLength": 512,
              "minLength": 1,
              "type": "string"
            },
            "maxItems": 32,
            "minItems": 1,
            "type": "array"
          },
          "values": {
            "items": {},
            "maxItems": 32,
            "type": "array"
          }
        },
        "required": [
          "types",
          "values"
        ],
        "type": "object"
      },
      "name": "abi_encode"
    },
    {
      "description": "Paid $5 USDC seller-side agent distribution pack for API/MCP discoverability: live discovery audit, ready-to-commit agent-readable artifacts, and a prioritized API/MCP distribution sequence.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "description": {
            "maxLength": 500,
            "minLength": 1,
            "type": "string"
          },
          "mcpEndpoint": {
            "format": "uri",
            "type": "string"
          },
          "mcpName": {
            "maxLength": 160,
            "type": "string"
          },
          "openapiUrl": {
            "format": "uri",
            "type": "string"
          },
          "origin": {
            "format": "uri",
            "type": "string"
          },
          "primaryEndpoint": {
            "format": "uri",
            "type": "string"
          },
          "providerName": {
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          },
          "repositoryUrl": {
            "format": "uri",
            "type": "string"
          },
          "tags": {
            "items": {
              "maxLength": 60,
              "type": "string"
            },
            "maxItems": 12,
            "type": "array"
          },
          "version": {
            "maxLength": 40,
            "type": "string"
          }
        },
        "required": [
          "providerName",
          "description",
          "origin"
        ],
        "type": "object"
      },
      "name": "agent_distribution_pack"
    },
    {
      "description": "Paid $0.005 USDC on Base or Solana audit of a public website for agent discoverability and machine-readable integration signals. x402-aware MCP clients can authorize and settle inside this tool call.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "agent_readiness"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana Base64 to UTF-8 decoding.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "maxLength": 131072,
            "type": "string"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "name": "base64_decode"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana UTF-8 to Base64 encoding.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "maxLength": 131072,
            "type": "string"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "name": "base64_encode"
    },
    {
      "description": "Paid $0.05 USDC on Base or Solana batch live verification for 2–4 capability decisions using unpaid MCP and x402/HTTP evidence. x402-aware MCP clients can authorize and settle inside this tool call.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "items": {
            "items": {
              "properties": {
                "goal": {
                  "minLength": 1,
                  "type": "string"
                },
                "url": {
                  "format": "uri",
                  "type": "string"
                }
              },
              "required": [
                "goal"
              ],
              "type": "object"
            },
            "maxItems": 4,
            "minItems": 2,
            "type": "array"
          }
        },
        "required": [
          "items"
        ],
        "type": "object"
      },
      "name": "batch_verified_resolve"
    },
    {
      "description": "Paid $0.005 USDC on Base or Solana exact EIP-712 typed-data digest for signing and verification workflows.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "domain": {
            "additionalProperties": {},
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          },
          "message": {
            "additionalProperties": {},
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          },
          "primaryType": {
            "maxLength": 128,
            "minLength": 1,
            "type": "string"
          },
          "types": {
            "additionalProperties": {
              "items": {
                "properties": {
                  "name": {
                    "type": "string"
                  },
                  "type": {
                    "type": "string"
                  }
                },
                "required": [
                  "name",
                  "type"
                ],
                "type": "object"
              },
              "type": "array"
            },
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          }
        },
        "required": [
          "domain",
          "types",
          "primaryType",
          "message"
        ],
        "type": "object"
      },
      "name": "eip712_hash"
    },
    {
      "description": "Paid $0.01 USDC on Base or Solana ENSIP-15 normalization, exact ENS namehash and label hashes.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "name": {
            "maxLength": 255,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "name"
        ],
        "type": "object"
      },
      "name": "ens_namehash"
    },
    {
      "description": "Paid $0.003 USDC on Base or Solana exact EIP-55 address validation and checksum normalization.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "address": {
            "pattern": "^0x[0-9a-fA-F]{40}$",
            "type": "string"
          }
        },
        "required": [
          "address"
        ],
        "type": "object"
      },
      "name": "evm_address_checksum"
    },
    {
      "description": "Paid $0.005 USDC on Base or Solana exact decimal/base-unit conversion with arbitrary token decimals.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "decimals": {
            "maximum": 255,
            "minimum": 0,
            "type": "integer"
          },
          "mode": {
            "enum": [
              "parse",
              "format"
            ],
            "type": "string"
          },
          "value": {
            "maxLength": 256,
            "type": "string"
          }
        },
        "required": [
          "mode",
          "value",
          "decimals"
        ],
        "type": "object"
      },
      "name": "evm_units"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana deterministic SHA-256, SHA-512, HMAC-SHA256, Base64 encode/decode, or non-verifying JWT decode. x402-aware MCP clients can authorize and settle inside this tool call.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "maxLength": 131072,
            "type": "string"
          },
          "operation": {
            "enum": [
              "sha256",
              "sha512",
              "hmac-sha256",
              "base64-encode",
              "base64-decode",
              "jwt-decode"
            ],
            "type": "string"
          },
          "secret": {
            "maxLength": 4096,
            "type": "string"
          }
        },
        "required": [
          "operation",
          "input"
        ],
        "type": "object"
      },
      "name": "hash_encode"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana HMAC-SHA256 hex digest.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "maxLength": 131072,
            "type": "string"
          },
          "secret": {
            "maxLength": 4096,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "input",
          "secret"
        ],
        "type": "object"
      },
      "name": "hmac_sha256"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana verify-before-pay endpoint safety check: payTo verification, quote price, network, asset, resource binding and x402 challenge compliance before an agent authorizes spend. POST probes require explicit caller opt-in because an unprotected endpoint could have side effects.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "http_inspect"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana canonical JSON normalization plus SHA-256 digest.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "value": {}
        },
        "required": [
          "value"
        ],
        "type": "object"
      },
      "name": "json_normalize"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana deterministic JSON Schema subset validation.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "data": {},
          "schema": {
            "additionalProperties": {},
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          }
        },
        "required": [
          "data",
          "schema"
        ],
        "type": "object"
      },
      "name": "json_schema_validate"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana non-verifying JWT header/payload decode.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "maxLength": 131072,
            "type": "string"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "name": "jwt_decode"
    },
    {
      "description": "Paid $0.004 USDC on Base or Solana exact Ethereum keccak256 digest for UTF-8 text or hex bytes.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "encoding": {
            "enum": [
              "utf8",
              "hex"
            ],
            "type": "string"
          },
          "input": {
            "maxLength": 131072,
            "type": "string"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "name": "keccak256"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana live MCP endpoint preflight for reachability, compatibility, latency, server metadata and tool inventory. x402-aware MCP clients can authorize and settle inside this tool call.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "endpoint": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "endpoint"
        ],
        "type": "object"
      },
      "name": "mcp_preflight"
    },
    {
      "description": "Paid $0.005 USDC on Base or Solana selection of the best operation from one public JSON OpenAPI spec for a stated goal. Returns a compact execution-ready contract. x402-aware MCP clients can authorize and settle inside this tool call.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "goal": {
            "maxLength": 600,
            "minLength": 1,
            "type": "string"
          },
          "specUrl": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "specUrl",
          "goal"
        ],
        "type": "object"
      },
      "name": "openapi_select"
    },
    {
      "description": "Paid $0.001 USDC fail-closed payment authorization preflight. Use immediately before an autonomous agent signs a target x402 payment. Returns eligible/blocked, exact observed payment terms, reason codes, evidence receipt and stable fingerprints. The caller retains sole spending authority.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "allowUnpaidPostProbe": {
            "type": "boolean"
          },
          "body": {},
          "expectedNetwork": {
            "maxLength": 128,
            "type": "string"
          },
          "expectedPayTo": {
            "maxLength": 128,
            "minLength": 1,
            "type": "string"
          },
          "maxPriceUsd": {
            "maximum": 1000,
            "minimum": 0,
            "type": "number"
          },
          "method": {
            "enum": [
              "GET",
              "HEAD",
              "POST"
            ],
            "type": "string"
          },
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "payment_guard"
    },
    {
      "description": "CALL THIS when the agent's installed tools do not clearly satisfy the current task. Free open-world procurement across APIs, MCP, x402, L402 and MPP. Required compatibility evidence fails closed: AgentResolver returns no selected provider rather than guessing. When supported unknowns remain, the response can recommend the paid $0.02 verified_resolve step. Never authorizes spend.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "constraints": {
            "properties": {
              "auth": {
                "enum": [
                  "none",
                  "wallet",
                  "api-key",
                  "any"
                ],
                "type": "string"
              },
              "availableInputSchema": {
                "additionalProperties": {},
                "propertyNames": {
                  "type": "string"
                },
                "type": "object"
              },
              "maxPriceUsd": {
                "maximum": 1000,
                "minimum": 0,
                "type": "number"
              },
              "preferredNetworks": {
                "items": {
                  "maxLength": 128,
                  "minLength": 1,
                  "type": "string"
                },
                "maxItems": 8,
                "type": "array"
              },
              "protocol": {
                "enum": [
                  "x402",
                  "l402",
                  "mpp",
                  "mcp",
                  "any"
                ],
                "type": "string"
              },
              "requireHttps": {
                "type": "boolean"
              },
              "requiredOutputSchema": {
                "additionalProperties": {},
                "propertyNames": {
                  "type": "string"
                },
                "type": "object"
              },
              "sideEffect": {
                "enum": [
                  "read-only",
                  "state-changing",
                  "any"
                ],
                "type": "string"
              }
            },
            "type": "object"
          },
          "goal": {
            "maxLength": 1000,
            "minLength": 1,
            "type": "string"
          },
          "limit": {
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          },
          "providerOrigins": {
            "items": {
              "format": "uri",
              "type": "string"
            },
            "maxItems": 2,
            "type": "array"
          }
        },
        "required": [
          "goal"
        ],
        "type": "object"
      },
      "name": "procure"
    },
    {
      "description": "Free zero-state provider onboarding. Reads the fixed AgentResolver well-known manifest on one HTTPS origin, live-verifies selected same-origin x402 payment identities, returns an immediate providerOrigins procurement seed, and prepares caller-owned durable 402 Index registration actions. AgentResolver does not persist provider state or send the external registration.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "origin": {
            "format": "uri",
            "type": "string"
          },
          "routeIds": {
            "items": {
              "maxLength": 100,
              "minLength": 1,
              "type": "string"
            },
            "maxItems": 5,
            "type": "array"
          }
        },
        "required": [
          "origin"
        ],
        "type": "object"
      },
      "name": "provider_bootstrap"
    },
    {
      "description": "Paid $0.05 USDC seller-side agent-distribution entry check: verify provider readiness and the live x402 contract, then use the $5 Distribution Pack when discoverability artifacts or launch fixes are needed.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "capabilityId": {
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          },
          "description": {
            "maxLength": 500,
            "minLength": 1,
            "type": "string"
          },
          "endpoint": {
            "format": "uri",
            "type": "string"
          },
          "method": {
            "enum": [
              "GET",
              "POST"
            ],
            "type": "string"
          },
          "name": {
            "maxLength": 160,
            "minLength": 1,
            "type": "string"
          },
          "network": {
            "maxLength": 120,
            "type": "string"
          },
          "origin": {
            "format": "uri",
            "type": "string"
          },
          "priceUsd": {
            "exclusiveMinimum": 0,
            "maximum": 1000,
            "type": "number"
          },
          "probeUrl": {
            "format": "uri",
            "type": "string"
          },
          "providerId": {
            "maxLength": 80,
            "minLength": 1,
            "type": "string"
          },
          "providerName": {
            "maxLength": 120,
            "minLength": 1,
            "type": "string"
          },
          "tags": {
            "items": {
              "maxLength": 80,
              "type": "string"
            },
            "maxItems": 20,
            "type": "array"
          }
        },
        "required": [
          "providerId",
          "providerName",
          "capabilityId",
          "name",
          "description",
          "origin",
          "endpoint",
          "priceUsd"
        ],
        "type": "object"
      },
      "name": "provider_launch_check"
    },
    {
      "description": "Free exploratory discovery. Use only when browsing possible tools/APIs/MCP services without needing a trustworthy execution choice yet. For an actual missing capability, prefer procure so required evidence fails closed and unresolved candidates can escalate to verification.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "goal": {
            "minLength": 1,
            "type": "string"
          },
          "limit": {
            "maximum": 10,
            "minimum": 1,
            "type": "integer"
          },
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "goal"
        ],
        "type": "object"
      },
      "name": "resolve"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana SHA-256 digest of bounded UTF-8 text.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "maxLength": 131072,
            "type": "string"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "name": "sha256"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana SHA-512 digest of bounded UTF-8 text.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "maxLength": 131072,
            "type": "string"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "name": "sha512"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana deterministic slug generation.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "separator": {
            "enum": [
              "-",
              "_"
            ],
            "type": "string"
          },
          "text": {
            "maxLength": 8192,
            "type": "string"
          }
        },
        "required": [
          "text"
        ],
        "type": "object"
      },
      "name": "slugify"
    },
    {
      "description": "Paid $0.01 USDC on Base or Solana exact 4-byte Solidity selector and full keccak256 signature hash.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "signature": {
            "maxLength": 1024,
            "minLength": 3,
            "type": "string"
          }
        },
        "required": [
          "signature"
        ],
        "type": "object"
      },
      "name": "solidity_selector"
    },
    {
      "description": "Free read-only information for tool/API/MCP providers about AgentResolver's explicitly labeled sponsorship pilot. Organic ranking remains independent; applying creates no purchase or financial commitment.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {},
        "type": "object"
      },
      "name": "sponsorship_info"
    },
    {
      "description": "Paid $0.005 USDC on Base or Solana deterministic JSON-schema compatibility check between one tool output and the next tool input. Returns exact incompatibility reasons and conservative normalized mappings. x402-aware MCP clients can authorize and settle inside this tool call.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "consumerInputSchema": {
            "additionalProperties": {},
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          },
          "producerOutputSchema": {
            "additionalProperties": {},
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          }
        },
        "required": [
          "producerOutputSchema",
          "consumerInputSchema"
        ],
        "type": "object"
      },
      "name": "tool_contract"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana absolute URL parser.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "url": {
            "maxLength": 4096,
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "url_parse"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana UUID v4 generation, up to 20 IDs.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "count": {
            "maximum": 20,
            "minimum": 1,
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "uuid_v4"
    },
    {
      "description": "PAID $0.02 USDC verification step. Use after procure returns no proven selection / eligible_with_unknowns, or immediately before trusting an unfamiliar external candidate when live evidence is required. Re-checks supported endpoint, MCP, x402 and contract evidence and returns a fail-closed recommendation. Call only when the host independently authorizes the displayed spend.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "constraints": {
            "properties": {
              "auth": {
                "enum": [
                  "none",
                  "wallet",
                  "api-key",
                  "any"
                ],
                "type": "string"
              },
              "availableInputSchema": {
                "additionalProperties": {},
                "propertyNames": {
                  "type": "string"
                },
                "type": "object"
              },
              "maxPriceUsd": {
                "maximum": 1000,
                "minimum": 0,
                "type": "number"
              },
              "preferredNetworks": {
                "items": {
                  "maxLength": 128,
                  "minLength": 1,
                  "type": "string"
                },
                "maxItems": 8,
                "type": "array"
              },
              "protocol": {
                "enum": [
                  "x402",
                  "l402",
                  "mpp",
                  "mcp",
                  "any"
                ],
                "type": "string"
              },
              "requireHttps": {
                "type": "boolean"
              },
              "requiredOutputSchema": {
                "additionalProperties": {},
                "propertyNames": {
                  "type": "string"
                },
                "type": "object"
              },
              "sideEffect": {
                "enum": [
                  "read-only",
                  "state-changing",
                  "any"
                ],
                "type": "string"
              }
            },
            "type": "object"
          },
          "goal": {
            "maxLength": 1000,
            "minLength": 1,
            "type": "string"
          },
          "providerOrigins": {
            "items": {
              "format": "uri",
              "type": "string"
            },
            "maxItems": 2,
            "type": "array"
          },
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "goal"
        ],
        "type": "object"
      },
      "name": "verified_resolve"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana transaction-path gate for autonomous buyers. Returns eligible/blocked, exact target payment terms, fail-closed reason codes and verifiable evidence before caller authorization. AgentResolver never requests a private key, signs the target payment, or custodies/forwards target funds.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "allowUnpaidPostProbe": {
            "type": "boolean"
          },
          "body": {},
          "expectedNetwork": {
            "maxLength": 128,
            "type": "string"
          },
          "expectedPayTo": {
            "maxLength": 128,
            "minLength": 1,
            "type": "string"
          },
          "maxPriceUsd": {
            "maximum": 1000,
            "minimum": 0,
            "type": "number"
          },
          "method": {
            "enum": [
              "GET",
              "HEAD",
              "POST"
            ],
            "type": "string"
          },
          "url": {
            "format": "uri",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "type": "object"
      },
      "name": "x402_payment_preflight"
    },
    {
      "description": "Paid $0.001 USDC on Base or Solana no-body settlement canary for funded agents. Returns a timestamped pong only after successful x402 payment to verify wallet, facilitator, payment, and delivery end-to-end.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "echo": {
            "maxLength": 256,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "x402_ping"
    }
  ]
}

What the leaf hashes

{"body":"3977ef254db5497ef2cc5365f39163d5825a4a9dc4b13765ad72dab61270b53a","id":294777,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793050402912506,"prev":null,"subject":"66ed25f7-206c-4f40-8af4-ec7252bc22c1","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x70c0010887e36f05861fe080fa1e7988fdf97ba421451857a2cb8f2d78bcbce2
  2. 0xb64ea9fbe73ad41672c14e38e215c453a0fc16df9c23dc342aea493f31e4f946
  3. 0x239e9ec4e55000aa81294458f8ead96464d462ab23a01d20715e5acb9a86e7ef
  4. 0xc84568f945a3cfd52150c37dcc51738105ea8c9d5de1add00fafa1388b7b8741
  5. 0xf19c05ab91ec2ef6e611c823f229e105656d86e8908fc6e276ee8fec85000a5a
  6. 0x1044acfcb710cb115608f25bd3f00f35a79687a7bdb77b9253c2762f39578673
  7. 0x01fc212e8bcdf4707a1146e827dd5109103a93229c71a011c5f5a1c14807f15c
  8. 0x68ace2b23863c07baf76c5982c8b23143d30bb4f21cd0533cf09549184b48620
  9. 0xc9ba8e512a3ad74ee604f8b1759e25b1172f9f8f62ba4f8f8bcc35beb64f6fcb
  10. 0x3801dc224ee69349c6fe3a8804f83a6392c51dbf385196ccaca4e1bc01124391
  11. 0x85ea4bbb5113622e4aa66d1805aad88594922ba95c70691ba980547dd9edd2b2
  12. 0x5be1d69fd9353c3a75685caffea8c98e8f079f5072011c82517cc5f365ba32f8
  13. 0x14b83e3bc6587240f31cd033d09d131e0775b7b00aada9042597008a70399013
  14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
  15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON