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x402-mcp

Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base.

使うべきか

品質と安全性

B
説明の品質
93%
スキーマの完全性
95%
命名の品質
50%
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%

検出事項（19）

  • LOWTool 'x402.agent_card' doesn't follow camelCase/snake_casex402.agent_card 内
  • LOWTool 'x402.discover' doesn't follow camelCase/snake_casex402.discover 内
  • LOWTool 'x402.probe' doesn't follow camelCase/snake_casex402.probe 内
  • LOWTool 'x402.pay_and_fetch' doesn't follow camelCase/snake_casex402.pay_and_fetch 内
  • LOWTool 'x402.build_seller' doesn't follow camelCase/snake_casex402.build_seller 内
  • LOWTool 'x402.verify' doesn't follow camelCase/snake_casex402.verify 内
  • LOWTool 'x402.networks' doesn't follow camelCase/snake_casex402.networks 内
  • LOWTool 'commerce.pro_requirements' doesn't follow camelCase/snake_casecommerce.pro_requirements 内
  • LOWTool 'commerce.activate_pro' doesn't follow camelCase/snake_casecommerce.activate_pro 内
  • LOWTool 'commerce.credits_requirements' doesn't follow camelCase/snake_casecommerce.credits_requirements 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

~4,507トークン数（ツール定義）
~2.1 KB一般的なレスポンスサイズ
注意への影響は大きい（128k コンテキストの 3.52%）

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-mcp": {
      "url": "https://x402-mcp.onrender.com/mcp/mcp"
    }
  }
}

リモートエンドポイント

https://x402-mcp.onrender.com/mcp/mcpstreamable-http

できること

ツール一覧

ツール（19）

🟢 読み取り専用🟡 書き込み🔴 削除⚪ 不明
🟢x402.agent_card(target_id, agent_id)

Return the A2A Protocol v1.0 Agent ID Card and MCP server card. Optional target_id filters to a skill id, name, or tag.

入力スキーマ

{
  "type": "object",
  "properties": {
    "target_id": {
      "default": null,
      "description": "Optional skill ID, tool name, or tag to inspect. Omit for the full server agent card.",
      "title": "Target Id",
      "type": "string"
    },
    "agent_id": {
      "default": null,
      "description": "Optional calling agent identifier for quota tracking.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "get_agent_cardArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_agent_cardOutput"
}
🟢x402.discover(query, limit, max_price_usdc, agent_id)

Discover paid HTTP APIs in the x402 Bazaar via the facilitator catalog. Call this first to find a resource URL, then x402.probe and x402.pay_and_fetch.

入力スキーマ

{
  "type": "object",
  "properties": {
    "query": {
      "default": null,
      "description": "Optional Bazaar search substring. Example: 'weather' or 'image'. Omit to list recent paid HTTP services.",
      "title": "Query",
      "type": "string"
    },
    "limit": {
      "default": 20,
      "description": "Maximum number of catalog entries to return. Default 20. Range 1–100.",
      "title": "Limit",
      "type": "integer"
    },
    "max_price_usdc": {
      "default": null,
      "description": "Optional USDC price ceiling. Example: 0.05. Omit to include any listed price.",
      "title": "Max Price Usdc",
      "type": "number"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting. Example: 'agent-42'. Omit to use the anonymous free-tier id.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "discover_servicesArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "discover_servicesOutput"
}
🟢x402.probe(url, method, headers, agent_id)

Probe a URL for HTTP 402 PAYMENT-REQUIRED terms using the x402 client SDK. Use before x402.pay_and_fetch to inspect price, network, and payTo without spending.

入力スキーマ

{
  "type": "object",
  "properties": {
    "url": {
      "description": "Absolute HTTP URL to probe. Example: 'https://x402-mcp.onrender.com/us/mn/property-check?address=1700%20Penn%20Ave%20N'.",
      "title": "Url",
      "type": "string"
    },
    "method": {
      "default": "GET",
      "description": "HTTP method for the probe. Default GET. Example: 'GET' or 'POST'.",
      "title": "Method",
      "type": "string"
    },
    "headers": {
      "default": null,
      "description": "Optional extra request headers as a string map. Example: {\"Accept\": \"application/json\"}. Omit if none.",
      "title": "Headers",
      "additionalProperties": {
        "type": "string"
      },
      "type": "object"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting. Omit for the anonymous free-tier id.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "url"
  ],
  "title": "get_payment_requirementsArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_payment_requirementsOutput"
}
🟢x402.pay_and_fetch(url, method, headers, body, preferred_network, ...)

Pay USDC via x402 and fetch a protected HTTP resource in one call. Requires EVM_PRIVATE_KEY on this host; otherwise use x402.probe for a no-spend 402.

入力スキーマ

{
  "type": "object",
  "properties": {
    "url": {
      "description": "Absolute paid HTTP URL to fetch after settling USDC.",
      "title": "Url",
      "type": "string"
    },
    "method": {
      "default": "GET",
      "description": "HTTP method for the paid request. Default GET.",
      "title": "Method",
      "type": "string"
    },
    "headers": {
      "default": null,
      "description": "Optional extra request headers as a string map. Omit if none.",
      "title": "Headers",
      "additionalProperties": {
        "type": "string"
      },
      "type": "object"
    },
    "body": {
      "default": null,
      "description": "Optional raw request body for POST/PUT. Omit for GET.",
      "title": "Body",
      "type": "string"
    },
    "preferred_network": {
      "default": null,
      "description": "Preferred CAIP-2 network. Example: 'eip155:8453' (Base mainnet). Omit to use the server default. Call x402.networks to list options.",
      "title": "Preferred Network",
      "type": "string"
    },
    "max_price_usdc": {
      "default": null,
      "description": "Optional spend ceiling in USDC. Example: 0.10. Calls above this are blocked.",
      "title": "Max Price Usdc",
      "type": "number"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "url"
  ],
  "title": "pay_and_fetchArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "pay_and_fetchOutput"
}
⚪x402.build_seller(network, pay_to, price, scheme, description, ...)

Build seller-side x402 payment requirements for your own HTTP resource. Pass resource_url plus discovery_* fields to catalog the endpoint in Bazaar.

入力スキーマ

{
  "type": "object",
  "properties": {
    "network": {
      "default": "eip155:84532",
      "description": "CAIP-2 settlement network. Default eip155:84532 (Base Sepolia). Mainnet: eip155:8453.",
      "title": "Network",
      "type": "string"
    },
    "pay_to": {
      "default": null,
      "description": "0x recipient for USDC. Example: '0x67ff…'. Omit to use X402_PAY_TO_ADDRESS.",
      "title": "Pay To",
      "type": "string"
    },
    "price": {
      "default": "$0.01",
      "description": "List price string. Default '$0.01'. Example: '$0.05'.",
      "title": "Price",
      "type": "string"
    },
    "scheme": {
      "default": "exact",
      "description": "x402 payment scheme. Default 'exact'.",
      "title": "Scheme",
      "type": "string"
    },
    "description": {
      "default": "Paid MCP-backed API access",
      "description": "Human-readable description embedded in PAYMENT-REQUIRED.",
      "title": "Description",
      "type": "string"
    },
    "resource_url": {
      "default": null,
      "description": "Public URL of the paid resource. When set with discovery_* fields, Bazaar catalogs the endpoint after a settled payment.",
      "title": "Resource Url",
      "type": "string"
    },
    "mime_type": {
      "default": "application/json",
      "description": "Resource MIME type. Default application/json.",
      "title": "Mime Type",
      "type": "string"
    },
    "discoverable": {
      "default": null,
      "description": "If true, embed the Bazaar discovery extension. Omit to use server default.",
      "title": "Discoverable",
      "type": "boolean"
    },
    "discovery_method": {
      "default": "GET",
      "description": "HTTP method advertised to Bazaar. Default GET.",
      "title": "Discovery Method",
      "type": "string"
    },
    "discovery_input_example": {
      "default": null,
      "description": "Optional example input object for Bazaar. Omit if none.",
      "title": "Discovery Input Example",
      "additionalProperties": true,
      "type": "object"
    },
    "discovery_output_example": {
      "default": null,
      "description": "Optional example output object for Bazaar. Omit if none.",
      "title": "Discovery Output Example",
      "additionalProperties": true,
      "type": "object"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "build_seller_requirementsArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "build_seller_requirementsOutput"
}
⚪x402.verify(payment_signature, payment_required, agent_id)

Verify an x402 PAYMENT-SIGNATURE against PAYMENT-REQUIRED terms via the facilitator. Call after a buyer presents a signature and before releasing paid content.

入力スキーマ

{
  "type": "object",
  "properties": {
    "payment_signature": {
      "description": "PAYMENT-SIGNATURE header value from the buyer.",
      "title": "Payment Signature",
      "type": "string"
    },
    "payment_required": {
      "description": "PAYMENT-REQUIRED JSON/header the signature is meant to satisfy.",
      "title": "Payment Required",
      "type": "string"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "payment_signature",
    "payment_required"
  ],
  "title": "verify_payment_payloadArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "verify_payment_payloadOutput"
}
🟢x402.networks(agent_id)

List supported settlement networks, facilitators, and x402 v2 header names. Call when choosing a preferred_network for x402.pay_and_fetch or x402.build_seller.

入力スキーマ

{
  "type": "object",
  "properties": {
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "get_supported_networksArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_supported_networksOutput"
}
🟢commerce.pro_requirements(agent_id)

Build x402 payment requirements to purchase the Pro quota tier. Next: pay those terms, then commerce.activate_pro with the signature.

入力スキーマ

{
  "type": "object",
  "properties": {
    "agent_id": {
      "default": null,
      "description": "Optional agent identity the Pro grant will attach to.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "get_pro_upgrade_requirementsArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_pro_upgrade_requirementsOutput"
}
⚪commerce.activate_pro(payment_signature, payment_required, agent_id)

Verify a Pro-tier x402 payment and unlock Pro quota limits for the agent. Call after commerce.pro_requirements and a completed USDC payment.

入力スキーマ

{
  "type": "object",
  "properties": {
    "payment_signature": {
      "description": "PAYMENT-SIGNATURE from the Pro-tier USDC payment.",
      "title": "Payment Signature",
      "type": "string"
    },
    "payment_required": {
      "description": "PAYMENT-REQUIRED JSON returned by commerce.pro_requirements.",
      "title": "Payment Required",
      "type": "string"
    },
    "agent_id": {
      "default": null,
      "description": "Agent identity to grant Pro quota. Must match the requirements call.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "payment_signature",
    "payment_required"
  ],
  "title": "activate_pro_tierArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "activate_pro_tierOutput"
}
🟢commerce.credits_requirements(credits, agent_id)

Build x402 payment requirements to buy a pack of per-use MCP tool credits. Next: pay those terms, then commerce.purchase_credits with the signature.

入力スキーマ

{
  "type": "object",
  "properties": {
    "credits": {
      "default": null,
      "description": "Credit pack size to buy. Example: 100. Omit to use the server default pack.",
      "title": "Credits",
      "type": "integer"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity the credits will attach to.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "get_tool_credits_requirementsArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_tool_credits_requirementsOutput"
}
🟡commerce.purchase_credits(payment_signature, payment_required, credits, agent_id)

Verify an x402 payment and add per-use tool credits to the agent. Call after commerce.credits_requirements and a completed USDC payment.

入力スキーマ

{
  "type": "object",
  "properties": {
    "payment_signature": {
      "description": "PAYMENT-SIGNATURE from the credits USDC payment.",
      "title": "Payment Signature",
      "type": "string"
    },
    "payment_required": {
      "description": "PAYMENT-REQUIRED JSON returned by commerce.credits_requirements.",
      "title": "Payment Required",
      "type": "string"
    },
    "credits": {
      "default": null,
      "description": "Credit pack size that was purchased. Must match the requirements call.",
      "title": "Credits",
      "type": "integer"
    },
    "agent_id": {
      "default": null,
      "description": "Agent identity to credit.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "payment_signature",
    "payment_required"
  ],
  "title": "purchase_tool_creditsArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "purchase_tool_creditsOutput"
}
🟢swarm.research(topic, max_price_usdc, agent_id, allow_paid_inputs)

Run the swarm agency: compose a research product from free inputs and list it for resale. Pass allow_paid_inputs=true only when buying upstream x402 services is intended.

入力スキーマ

{
  "type": "object",
  "properties": {
    "topic": {
      "description": "Research topic to compose. Example: 'Base mainnet gas window'.",
      "title": "Topic",
      "type": "string"
    },
    "max_price_usdc": {
      "default": null,
      "description": "Optional USDC ceiling for any paid upstream inputs.",
      "title": "Max Price Usdc",
      "type": "number"
    },
    "agent_id": {
      "default": null,
      "description": "Seller agent identity that will own the listing.",
      "title": "Agent Id",
      "type": "string"
    },
    "allow_paid_inputs": {
      "default": null,
      "description": "If true, buy upstream x402 services before composing. Default false (free inputs only, unsold inventory costs nothing).",
      "title": "Allow Paid Inputs",
      "type": "boolean"
    }
  },
  "required": [
    "topic"
  ],
  "title": "run_swarm_researchArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "run_swarm_researchOutput"
}
⚪swarm.settle(product_id, payment_signature, payment_required, agent_id)

Verify and settle a buyer's x402 payment for a listed composite product and record revenue. Call with product_id plus PAYMENT-SIGNATURE after the buyer pays.

入力スキーマ

{
  "type": "object",
  "properties": {
    "product_id": {
      "description": "Listed composite product id. Example: the hex id from swarm.research.",
      "title": "Product Id",
      "type": "string"
    },
    "payment_signature": {
      "description": "PAYMENT-SIGNATURE from the buyer.",
      "title": "Payment Signature",
      "type": "string"
    },
    "payment_required": {
      "description": "PAYMENT-REQUIRED terms for this product.",
      "title": "Payment Required",
      "type": "string"
    },
    "agent_id": {
      "default": null,
      "description": "Seller agent identity recording the sale.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "product_id",
    "payment_signature",
    "payment_required"
  ],
  "title": "settle_composite_saleArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "settle_composite_saleOutput"
}
🟢swarm.revenue(agent_id)

Get swarm composite economics: spend, composite sales, LTV:CAC, margins, per-source scores. total_revenue_usdc is swarm listings only; storefront.revenue_usdc is the full settled ledger. Call after swarm.research or swarm.settle to inspect realized economics.

入力スキーマ

{
  "type": "object",
  "properties": {
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "swarm_revenue_reportArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "swarm_revenue_reportOutput"
}
🟢pulse.base(depth, agent_id)

Get live Base Network Pulse: base fee, EIP-1559 projection, utilization, USD settlement cost, verdict. Call before settling on Base when you need a settle-now vs hold recommendation.

入力スキーマ

{
  "type": "object",
  "properties": {
    "depth": {
      "default": null,
      "description": "Blocks to sample. Example: 12. Omit to use the server default.",
      "title": "Depth",
      "type": "integer"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "get_base_pulseArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_base_pulseOutput"
}
🟢ops.metrics(include_processes, agent_id)

Get host OS telemetry: CPU, memory, swap, disk, network, and an ok/warn/critical health verdict. Call to diagnose this MCP host; set include_processes=true for top memory processes.

入力スキーマ

{
  "type": "object",
  "properties": {
    "include_processes": {
      "default": false,
      "description": "If true, include top processes by memory. Default false.",
      "title": "Include Processes",
      "type": "boolean"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "get_os_metricsArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_os_metricsOutput"
}
🟢city.list(agent_id)

List US City Open-Data Compliance Network cities with paid_url, sample_url, and price. Call first, then city.sample, then city.check for the paid address lookup.

入力スキーマ

{
  "type": "object",
  "properties": {
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "title": "list_us_citiesArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "list_us_citiesOutput"
}
🟢city.sample(city_code, agent_id)

Get a free fixed-address property compliance sample for one US city code. Use before city.check to validate city_code and response shape without paying.

入力スキーマ

{
  "type": "object",
  "properties": {
    "city_code": {
      "description": "City code from city.list. Examples: 'mn', 'sea', 'nyc', 'chi'.",
      "title": "City Code",
      "type": "string"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "city_code"
  ],
  "title": "get_us_city_property_sampleArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "get_us_city_property_sampleOutput"
}
🟢city.check(city_code, address, max_price_usdc, preferred_network, agent_id)

Run a paid US city property compliance check via x402 on the same HTTP resource buyers use. Prefer city.sample first. Settles USDC when EVM_PRIVATE_KEY is set; otherwise returns a 402 probe. Price: $0.01 per call (x402, USDC on Base/Solana/Arbitrum).

入力スキーマ

{
  "type": "object",
  "properties": {
    "city_code": {
      "description": "City code from city.list. Example: 'mn'.",
      "title": "City Code",
      "type": "string"
    },
    "address": {
      "description": "Street address to check. Example: '1700 Penn Ave N' or '1 Centre St'.",
      "title": "Address",
      "type": "string"
    },
    "max_price_usdc": {
      "default": null,
      "description": "Optional USDC spend ceiling. Example: 0.05.",
      "title": "Max Price Usdc",
      "type": "number"
    },
    "preferred_network": {
      "default": null,
      "description": "Preferred CAIP-2 network. Example: 'eip155:8453'.",
      "title": "Preferred Network",
      "type": "string"
    },
    "agent_id": {
      "default": null,
      "description": "Optional agent identity for quota accounting.",
      "title": "Agent Id",
      "type": "string"
    }
  },
  "required": [
    "city_code",
    "address"
  ],
  "title": "check_us_city_propertyArguments"
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "result": {
      "title": "Result",
      "type": "string"
    }
  },
  "required": [
    "result"
  ],
  "title": "check_us_city_propertyOutput"
}

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