U.CASH Pay
Pay x402 resources on U.CASH from your own wallet: view the price, pay on-chain, settle by hash.
使うべきか
品質と安全性
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": {
"ucash-pay": {
"url": "https://mcp.u.cash/"
}
}
}リモートエンドポイント
https://mcp.u.cash/streamable-httpできること
ツール一覧
ツール（14）
🟢uxc_view_door(res_id, status)
Fetch the public 402 payment door for a resource (what a buyer sees at https://agents.u.cash/r/{res_id}): the price + the multi-coin accepts[] (each asset, the seller receive address, and the exact amount to pay). No key. Use as a BUYER to see what to pay, then uxc_verify_payment after paying. status=true polls settlement without minting a new challenge.
入力スキーマ
{
"type": "object",
"properties": {
"res_id": {
"type": "string"
},
"status": {
"type": "boolean",
"description": "poll mode: GET /r/{id}?status=1 - no-mint settlement check"
}
},
"required": [
"res_id"
]
}🟡uxc_verify_payment(challengeId, hash)
BUYER-SIDE. After paying a resource (from uxc_view_door) on-chain from your own wallet, submit the transaction hash to settle it. Pass the challengeId from the accepts[] entry you paid and the on-chain transaction hash. Returns settled (confirmed) or pending (awaiting confirmations). No seller key needed - the challengeId identifies the resource, and settlement is gated by on-chain confirmation.
入力スキーマ
{
"type": "object",
"properties": {
"challengeId": {
"type": "string"
},
"hash": {
"type": "string"
}
},
"required": [
"challengeId",
"hash"
]
}🟢uxc_get_market(q, limit, fields)
The PUBLIC cross-merchant market catalog: every published checkout across merchants (id, title, price, currency, merchant, domain, payable url). No key. q filters by title/merchant/description.
入力スキーマ
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "filter by title/merchant/description"
},
"limit": {
"type": "integer",
"maximum": 200,
"default": 50
},
"fields": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 20,
"description": "Optional response projection: dot paths to keep, e.g. [\"items.title\",\"items.price\"] or row-level [\"title\",\"price\"]. Envelope/meta keys (ok, success, total, count, pagination) are always kept; unknown paths are ignored; empty/absent = full response."
}
}
}🟢uxc_get_services(limit, fields)
The PUBLIC cross-provider services catalog (eSend rail: each row carries the provider contact email, a sendable asset code and a price). No key.
入力スキーマ
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"maximum": 200,
"default": 50
},
"fields": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 20,
"description": "Optional response projection: dot paths to keep, e.g. [\"items.asset\",\"items.price\"] or row-level [\"asset\",\"price\"]. Envelope/meta keys (ok, success, total, count, pagination) are always kept; unknown paths are ignored; empty/absent = full response."
}
}
}🟢uxc_search_catalog(query, filters, pagination, cloud)
Search a merchant catalog (text query + price filters + pagination). The merchant is resolved from a cloud token (the "cloud" argument) or the platform default. No key.
入力スキーマ
{
"type": "object",
"properties": {
"query": {
"type": "string"
},
"filters": {
"type": "string"
},
"pagination": {
"type": "string"
},
"cloud": {
"type": "string"
}
}
}🟢uxc_get_product(id, cloud)
Fetch a single catalog product by id. Public (no key); pair with uxc_search_catalog to find ids.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cloud": {
"type": "string"
}
},
"required": [
"id"
]
}⚪uxc_lookup_products(ids, cloud, fields)
Batch catalog lookup by ids. Public (no key).
入力スキーマ
{
"type": "object",
"properties": {
"ids": {
"type": "array",
"items": {
"type": "string"
}
},
"cloud": {
"type": "string"
},
"fields": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 20,
"description": "Optional response projection: dot paths to keep, e.g. row-level [\"id\",\"title\",\"price\"]. Envelope/meta keys (ok, success, total, count, pagination) are always kept; unknown paths are ignored; empty/absent = full response."
}
},
"required": [
"ids"
]
}🟡uxc_create_checkout(line_items, currency, buyer, context, cloud)
Create a UCP checkout session (multi-item, mixed-currency cart) for a merchant catalog. No key. Returns {id, status, currency, line_items, totals, ap2}.
入力スキーマ
{
"type": "object",
"properties": {
"line_items": {
"type": "array",
"description": "each: {item:{id}, quantity}"
},
"currency": {
"type": "string",
"description": "optional cart display currency"
},
"buyer": {
"type": "string"
},
"context": {
"type": "string"
},
"cloud": {
"type": "string",
"description": "merchant token when buying from a hosted merchant"
}
},
"required": [
"line_items"
]
}🟢uxc_get_checkout(id, cloud)
Fetch a UCP checkout session by id (status: incomplete -> ready_for_complete -> completed). No key; pass cloud for a hosted merchant.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cloud": {
"type": "string"
}
},
"required": [
"id"
]
}⚪uxc_complete_checkout(id, ap2, cloud)
Mint payment challenges for a checkout session -> ready_for_complete. Optional ap2 (AP2 checkout mandate). No key; pass cloud for a hosted merchant.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"ap2": {
"type": "string",
"description": "optional AP2 checkout mandate"
},
"cloud": {
"type": "string"
}
},
"required": [
"id"
]
}🔴uxc_cancel_checkout(id, cloud)
Cancel a UCP checkout session. No key; pass cloud for a hosted merchant.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cloud": {
"type": "string"
}
},
"required": [
"id"
]
}🟢uxc_get_order(id, cloud)
View a UCP checkout session as an order (per-item fulfillment status + fulfillment events). No key; pass cloud for a hosted merchant.
入力スキーマ
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"cloud": {
"type": "string"
}
},
"required": [
"id"
]
}🟢uxc_discover_servers(q)
List every u.cash MCP server in the fleet (buyer, seller, prime, legacy): product surface, auth model, transports with install coordinates, docs URL. Optional q filters by name/product/summary. Discovery only - connect to each server directly with your own credentials; no call is ever proxied.
入力スキーマ
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "case-insensitive substring over name/product/summary"
}
}
}🟢uxc_discover_tools(q, server, limit)
Search tools across every u.cash MCP server by name or description (case-insensitive substring), optionally scoped to one server. Returns the tool, a one-liner, its server, and how to connect. Discovery only - connect to that server directly; no call is ever proxied.
入力スキーマ
{
"type": "object",
"properties": {
"q": {
"type": "string",
"description": "substring matched over tool name + description"
},
"server": {
"type": "string",
"description": "optional: restrict to one fleet server name"
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 50,
"default": 20
}
}
}コミュニティ
エビデンス