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canonicalhash

Deterministic JSON hashing and EIP-712 attestations for AI agents via x402.

我該用這個嗎

品質與安全性

A
說明品質
100%
結構描述完整度
98%
命名品質
88%
汙染風險
100%
權限相符程度
100%
協定合規性
100%

根據工具定義與協定合規性的自動化分析。

上下文成本

~470Token（工具定義）
~731 B典型回應大小
極小的注意力影響（128k 上下文的 0.37%）

這是每次將伺服器的工具載入模型上下文時所消耗的約略 token 數量。數量越高，可用於其他工作的注意力就越少。

安裝

一鍵安裝

將以下內容加入你的 `claude_desktop_config.json` 檔案：

{
  "mcpServers": {
    "canonicalhash": {
      "url": "https://canonicalhash-production.up.railway.app/mcp"
    }
  }
}

遠端端點

https://canonicalhash-production.up.railway.app/mcpstreamable-http

它能做什麼

工具清單

工具（5）

🟢 唯讀🟡 寫入🔴 刪除⚪ 未知
⚪canonicalize(payload, algorithm)

Canonicalize JSON with RFC 8785 and return a SHA-256 hash plus an EIP-712 signed attestation.

輸入結構描述

{
  "type": "object",
  "properties": {
    "payload": {
      "type": "string",
      "description": "The JSON payload stringified (e.g., '{\"b\":2,\"a\":1}')"
    },
    "algorithm": {
      "default": "sha256",
      "type": "string",
      "enum": [
        "sha256",
        "sha512"
      ]
    }
  },
  "required": [
    "payload"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪batch_canonicalize(payloads)

Batch canonicalize up to 1000 JSON payloads in one call.

輸入結構描述

{
  "type": "object",
  "properties": {
    "payloads": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Array of JSON payloads, each stringified"
    }
  },
  "required": [
    "payloads"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟡create_receipt(action, metadata)

Generate a tamper-evident EIP-712 action receipt for an agent decision.

輸入結構描述

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "description": "Description of the action"
    },
    "metadata": {
      "description": "Additional metadata stringified JSON",
      "type": "string"
    }
  },
  "required": [
    "action"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟢structure_extraction(text, schema)

Extract structured JSON from messy text (emails, logs, tickets) using regex or Needle 3.

輸入結構描述

{
  "type": "object",
  "properties": {
    "text": {
      "type": "string",
      "description": "The messy text to extract from"
    },
    "schema": {
      "description": "Optional output schema stringified JSON",
      "type": "string"
    }
  },
  "required": [
    "text"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
⚪verify_attestation(attestation)

Verify an EIP-712 attestation against the published public key. Always free.

輸入結構描述

{
  "type": "object",
  "properties": {
    "attestation": {
      "type": "string",
      "description": "The attestation object stringified JSON"
    }
  },
  "required": [
    "attestation"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

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