FreshProof
Timestamped public URL observations with SHA-256 fingerprints, paid in USDC on Base via x402.
使うべきか
品質と安全性
検出事項（1）
- LOWTool 'freshproof_info' description lacks action verbfreshproof_info 内
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"freshproof": {
"url": "https://freshproof.ricardobessellp-11d.workers.dev/mcp"
}
}
}リモートエンドポイント
https://freshproof.ricardobessellp-11d.workers.dev/mcpstreamable-httpできること
ツール一覧
ツール（4）
🟢freshproof_info
Describe FreshProof, its observation semantics, current MCP price and payment network. This tool is free.
入力スキーマ
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢verify_proof(proof_id, policy)
Verify the deterministic integrity of an existing FreshProof proof receipt and optionally evaluate declarative policy rules. This tool is free and performs no new public-network fetch.
入力スキーマ
{
"type": "object",
"properties": {
"proof_id": {
"type": "string",
"pattern": "^fp1_[a-f0-9]{64}$",
"description": "FreshProof proof identifier returned by observe_url"
},
"policy": {
"type": "object",
"properties": {
"max_age_seconds": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"status_in": {
"minItems": 1,
"type": "array",
"items": {
"type": "integer",
"minimum": 100,
"maximum": 599
}
},
"content_hash_equals": {
"type": "string",
"pattern": "^sha256:[a-f0-9]{64}$"
},
"final_host_equals": {
"type": "string",
"minLength": 1
},
"original_host_equals": {
"type": "string",
"minLength": 1
},
"require_same_origin_redirect": {
"type": "boolean"
},
"changed_since_content_hash": {
"type": "string",
"pattern": "^sha256:[a-f0-9]{64}$"
}
},
"additionalProperties": false
}
},
"required": [
"proof_id"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢observe_url(url, max_age)
Buy a timestamped FreshProof observation of a public HTTP/HTTPS URL. Returns final URL, observation timestamp, age, HTTP status, SHA-256 body hash, body size, ETag, Last-Modified, fetch duration, and whether the observation came from shared cache or a fresh public-network request. Set max_age=0 when a new public-network request is required. The response body itself is not returned.
入力スキーマ
{
"type": "object",
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public HTTP or HTTPS URL to observe"
},
"max_age": {
"description": "Maximum acceptable observation age in seconds. Defaults to 300. Set to 0 to force a fresh public-network request.",
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
}
},
"required": [
"url"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢verify_url(url, max_age, policy)
Buy a FreshProof URL observation and immediately evaluate declarative trust policy rules against the resulting proof. This combines observe_url and verify_proof in one paid agent workflow.
入力スキーマ
{
"type": "object",
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public HTTP or HTTPS URL to observe and verify"
},
"max_age": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"policy": {
"type": "object",
"properties": {
"max_age_seconds": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"status_in": {
"minItems": 1,
"type": "array",
"items": {
"type": "integer",
"minimum": 100,
"maximum": 599
}
},
"content_hash_equals": {
"type": "string",
"pattern": "^sha256:[a-f0-9]{64}$"
},
"final_host_equals": {
"type": "string",
"minLength": 1
},
"original_host_equals": {
"type": "string",
"minLength": 1
},
"require_same_origin_redirect": {
"type": "boolean"
},
"changed_since_content_hash": {
"type": "string",
"pattern": "^sha256:[a-f0-9]{64}$"
}
},
"additionalProperties": false,
"description": "Declarative policy evaluated against the resulting proof"
}
},
"required": [
"url",
"policy"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}コミュニティ
エビデンス