Evidence row 221308

Observed 26 Oct 2026, 15:07 UTC, by probe.mcp/1.

Kind: mcp.tools
About: endpoint 23f3ec65-4b3b-4c40-92ea-dbd0b5dbd8bc
Recorded: 26 Oct 2026, 15:07 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 28389c50fba82d1388985aeeb336c98e8c2e154b16134a53fe6348711c7f4a9e
Leaf: 0xa6145c7ef92180832c4f4a36a938e12b29ffc04c0260553241571e34d592fea6

What was observed

{
  "count": 11,
  "tools": [
    {
      "description": "Find sourced benchmark rows by model, provider, or benchmark ID.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "benchmark_id": {
            "description": "benchmark id",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "cursor": {
            "description": "cursor",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "limit": {
            "description": "limit",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "model_id": {
            "description": "model id",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "provider": {
            "description": "provider",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "benchmark_lookup"
    },
    {
      "description": "Estimate cost from total input tokens, their cached subset, output tokens and request count. Optional batch_mode uses available batch rates with standard-rate fallback.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "batch_mode": {
            "description": "batch mode",
            "type": "boolean"
          },
          "cached_input_tokens": {
            "description": "cached input tokens",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "input_tokens": {
            "description": "input tokens",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "model_id": {
            "description": "model id",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "output_tokens": {
            "description": "output tokens",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "requests": {
            "description": "requests",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "calculate_cost"
    },
    {
      "description": "Compare pricing, context, and sourced benchmarks for model IDs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "model_ids": {
            "description": "model ids",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "compare_models"
    },
    {
      "description": "Rank models by available benchmark signal per listed token price.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "benchmark_id": {
            "description": "benchmark id",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "cursor": {
            "description": "cursor",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "limit": {
            "description": "limit",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "provider": {
            "description": "provider",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "find_best_value"
    },
    {
      "description": "Find cheapest models by combined listed input plus output token price.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "cursor": {
            "description": "cursor",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "limit": {
            "description": "limit",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "provider": {
            "description": "provider",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "workload": {
            "description": "workload",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "find_cheapest"
    },
    {
      "description": "Return recent model launches, removals, and pricing changes.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "cursor": {
            "description": "cursor",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "limit": {
            "description": "limit",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "provider": {
            "description": "provider",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "type": {
            "description": "type",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "latest_changes"
    },
    {
      "description": "Return historical pricing snapshots for a model ID.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "model_id": {
            "description": "model id",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "pricing_history"
    },
    {
      "description": "Summarize model count, prices, benchmarks, and changes for a provider.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "provider": {
            "description": "provider",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "provider_summary"
    },
    {
      "description": "Recommend models for a workload using price, context, and benchmark evidence.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "budget": {
            "description": "budget",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "limit": {
            "description": "limit",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "min_context_tokens": {
            "description": "min context tokens",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "provider": {
            "description": "provider",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "workload": {
            "description": "workload",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "recommend_model"
    },
    {
      "description": "Search the pricing catalog with provider, workload, context, and price filters.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "cursor": {
            "description": "cursor",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "limit": {
            "description": "limit",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "max_combined_price": {
            "description": "max combined price",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "min_context_tokens": {
            "description": "min context tokens",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "provider": {
            "description": "provider",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "query": {
            "description": "query",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "workload": {
            "description": "workload",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "search_models"
    },
    {
      "description": "Search AI Pricing Hub news items.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "cursor": {
            "description": "cursor",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "language": {
            "description": "language",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "limit": {
            "description": "limit",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "query": {
            "description": "query",
            "type": [
              "string",
              "number",
              "array"
            ]
          },
          "source": {
            "description": "source",
            "type": [
              "string",
              "number",
              "array"
            ]
          }
        },
        "type": "object"
      },
      "name": "search_news"
    }
  ]
}

What the leaf hashes

{"body":"28389c50fba82d1388985aeeb336c98e8c2e154b16134a53fe6348711c7f4a9e","id":221308,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793027267601473,"prev":null,"subject":"23f3ec65-4b3b-4c40-92ea-dbd0b5dbd8bc","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

0xa6142af3a7a8fe53c8ba40468262ed1d93544ac29052693bfb55f6deed85c42d
0xcde430b410a528ebedaf9db6ac4c5b73f8fa9aae16a63a300048265ed8027c75
0xbf418569947cf32b93fe987453f9ef560aa4d7038ecc29df20733a22ad8e29c2
0xd01aa05ca67933712ec742ae1a8a95c379a229da0c84e1519a8e385aecde888d
0x85259e7a5ef2770c9f950c69aad520be12ef89e45a63b2fee60078d959ab3250
0x04f619e0775c10c47cda185d8d4a2afe8cac12bc848df93f924e49b3a664eed8
0x2e6719ea97ede9cc0541f70188abee33c25021cc6682989d39c30f2cff921fbe
0x11c49152a9726038e574287f89160cd132f1cca50c3a3a828d75349b44d682a0
0xb4c0b7187921a3fa9eef3519b98c8bca669a3aa7d7681abd99a70afcf0598efd
0x93c7b1ac8754236471980488e2ae86b7135fed175d7852bf9b8ef708900f060d
0xf9b4ada16aca6f9b63c09b94519008e1b94357a9d352c245023758b56b82d0b1
0x1e464fcb484a1e782f9fe44be5118a9de934eb533c96ba10fc7d20e3a3e4711c
0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON