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Categories › Business & Finance › Payments & billing

U.CASH Pay

MCP serverVerified domain · u.cashRemote● LiveFree to try

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

Install

Remote server: your requests and data go to mcp.u.cash. Claude Code: claude mcp add --transport http u-cash-pay https://mcp.u.cash/ · Claude app: Settings → Connectors → Add custom connector.

What it can do

The tools this server listed when we connected to it, in its own words.

  • 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
  • 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 c
  • uxc_get_market — The PUBLIC cross-merchant market catalog: every published checkout across merchants (id, title, price, currency, merchant, domain, payable u
  • 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
  • uxc_search_catalog — Search a merchant catalog (text query + price filters + pagination). The merchant is resolved from a cloud token (the "cloud" argument) or t
  • 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, t
  • 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 m
  • 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,
  • uxc_discover_tools — Search tools across every u.cash MCP server by name or description (case-insensitive substring), optionally scoped to one server. Returns th

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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