MCP server

U.CASH Pay Official

cash.u/ucash-pay

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Source

At a glance

Type

MCP server

Publisher

u.cash (verified by the MCP Registry)

Status

Working at last check

Tools

14

Token cost

About 1,886 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.ucash-pay]
url = "https://mcp.u.cash/"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"ucash-pay":{"type":"http","url":"https://mcp.u.cash/"}}}

Antigravity

agy mcp add ucash-pay https://mcp.u.cash/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"ucash-pay","server_url":"https://mcp.u.cash/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"ucash-pay","server_url":"https://mcp.u.cash/"}

Tools

• uxc_cancel_checkout Moves money · ~67 tokens
  Cancel a UCP checkout session. No key; pass cloud for a hosted merchant.
• uxc_complete_checkout Moves money · ~110 tokens
  Mint payment challenges for a checkout session -> ready_for_complete. Optional ap2 (AP2 checkout mandate). No key; pass cloud for a hosted merchant.
• uxc_create_checkout Moves money · ~163 tokens
  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_discover_servers ~138 tokens
  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 ~171 tokens
  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.
• uxc_get_checkout ~84 tokens
  Fetch a UCP checkout session by id (status: incomplete -> ready_for_complete -> completed). No key; pass cloud for a hosted merchant.
• uxc_get_market ~215 tokens
  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_order ~83 tokens
  View a UCP checkout session as an order (per-item fulfillment status + fulfillment events). No key; pass cloud for a hosted merchant.
• uxc_get_product ~73 tokens
  Fetch a single catalog product by id. Public (no key); pair with uxc_search_catalog to find ids.
• uxc_get_services ~180 tokens
  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_lookup_products ~156 tokens
  Batch catalog lookup by ids. Public (no key).
• uxc_search_catalog ~108 tokens
  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_verify_payment ~167 tokens
  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_view_door ~171 tokens
  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

Browse

• Email
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