x402 Agent Tools

Pay-per-call web, Base onchain and crypto-alert tools for agents. USDC on Base via x402, no API key.

使うべきか

品質と安全性

A
説明の品質
100%
スキーマの完全性
77%
命名の品質
84%
ポイズニングのリスク
100%
権限の一致
100%
プロトコルへの準拠
100%

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

~775トークン数(ツール定義)
~300 B一般的なレスポンスサイズ
注意への影響は中程度(128k コンテキストの 0.61%)

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": {
    "x402-agent-tools": {
      "url": "https://x402-agent-tools.x402agenttools.workers.dev/mcp"
    }
  }
}

リモートエンドポイント

https://x402-agent-tools.x402agenttools.workers.dev/mcpstreamable-http

できること

ツール一覧

ツール(9)

🟢 読み取り専用🟡 書き込み🔴 削除⚪ 不明
⚪web_markdown(url)

Any public web page URL -> clean Markdown (Readability + Turndown). Returns {url,title,byline,length,markdown}. Price $0.01 USDC on Base via x402 (3 free calls/day per caller).

入力スキーマ

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Public http(s) URL"
    }
  },
  "required": [
    "url"
  ]
}
🟢web_extract(url)

Structured JSON extraction from a web page: title, meta/OpenGraph, JSON-LD, headings, links, tables, contact emails, plus Markdown body. Price $0.04 USDC on Base via x402.

入力スキーマ

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string"
    }
  },
  "required": [
    "url"
  ]
}
⚪web_crawl(url, max_pages)

Same-origin multi-page crawl (up to 10 pages, breadth-first) returning Markdown for each page. Price $0.16 USDC on Base via x402.

入力スキーマ

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string"
    },
    "max_pages": {
      "type": "integer",
      "minimum": 1,
      "maximum": 10
    }
  },
  "required": [
    "url"
  ]
}
🟢base_token_risk(address)

Base mainnet token/contract risk check via public RPC: ERC-20 metadata, owner, EIP-1967 proxy, risky bytecode selectors (mint/blacklist/pause/fee setters), heuristic risk score. Price $0.04 USDC on Base via x402.

入力スキーマ

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "0x contract address on Base"
    }
  },
  "required": [
    "address"
  ]
}
⚪base_token_price(address)

Current USD price of a Base token by contract address (GeckoTerminal, fallback DefiLlama), with 24h change, volume, liquidity/FDV where available. Price $0.005 USDC on Base via x402 (3 free calls/day per caller).

入力スキーマ

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string"
    }
  },
  "required": [
    "address"
  ]
}
⚪base_wallet_profile(address)

Base wallet profile via public RPC: ETH and USDC balances, nonce (tx count), contract-or-EOA, recent USDC transfers (last ~10k blocks). Price $0.02 USDC on Base via x402.

入力スキーマ

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string"
    }
  },
  "required": [
    "address"
  ]
}
⚪fx_rates(from, to, amount, date)

Fiat exchange rates (ECB reference rates via frankfurter.app), latest or historical. Price $0.002 USDC on Base via x402 (3 free calls/day per caller).

入力スキーマ

{
  "type": "object",
  "properties": {
    "from": {
      "type": "string"
    },
    "to": {
      "type": "string"
    },
    "amount": {
      "type": "number"
    },
    "date": {
      "type": "string"
    }
  },
  "required": []
}
⚪alerts_latest(limit)

One-shot: latest factual market alerts (symbol, time, signal type, price, % move, timeframe, source). Informational data only, not investment advice. Price $0.01 USDC on Base via x402.

入力スキーマ

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50
    }
  },
  "required": []
}
⚪alerts_sample

FREE: 3 factual crypto/market alerts delayed 60+ minutes. Informational data only, not investment advice. Alerts are automated factual observations (price/volume moves); no buy/sell recommendation is made or implied.

入力スキーマ

{
  "type": "object",
  "properties": {},
  "required": []
}

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