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U.CASH Pay

cash.u/ucash-pay · v0.10.0

Measured by MCP Station

Description written by the publisher, not verified

Pay x402 resources on U.CASH from your own wallet: view the price, pay on-chain, settle by hash.

Connect

claude mcp add --transport http ucash-pay https://mcp.u.cash/

{
  "mcpServers": {
    "ucash-pay": {
      "url": "https://mcp.u.cash/"
    }
  }
}

Tools as reported by the server

• uxc_view_door
  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. statu
• uxc_verify_payment
  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 n
• uxc_get_market
  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.
• uxc_get_services
  The PUBLIC cross-provider services catalog (eSend rail: each row carries the provider contact email, a sendable asset code and a price). No key.
• uxc_search_catalog
  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.
• uxc_get_product
  Fetch a single catalog product by id. Public (no key); pair with uxc_search_catalog to find ids.
• uxc_lookup_products
  Batch catalog lookup by ids. Public (no key).
• uxc_create_checkout
  Create a UCP checkout session (multi-item, mixed-currency cart) for a merchant catalog. No key. Returns {id, status, currency, line_items, totals, ap2}.
• uxc_get_checkout
  Fetch a UCP checkout session by id (status: incomplete -> ready_for_complete -> completed). No key; pass cloud for a hosted merchant.
• uxc_complete_checkout
  Mint payment challenges for a checkout session -> ready_for_complete. Optional ap2 (AP2 checkout mandate). No key; pass cloud for a hosted merchant.
• uxc_cancel_checkout
  Cancel a UCP checkout session. No key; pass cloud for a hosted merchant.
• uxc_get_order
  View a UCP checkout session as an order (per-item fulfillment status + fulfillment events). No key; pass cloud for a hosted merchant.
• uxc_discover_servers
  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.
• uxc_discover_tools
  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.

Repository · JSON · Text for agents · Registry updated 2026-10-05