How do I install U.CASH Pay?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does U.CASH Pay need an API key?

No required environment variable is listed on this record.

What transport does U.CASH Pay use?

U.CASH Pay is reached over HTTP.

U.CASH Pay

by cash.u

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

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL

https://mcp.u.cash/

Provider

Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code

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

Run in a terminal.

Claude Desktop

{
  "mcpServers": {
    "cash.u-ucash-pay": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.u.cash/"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Related MCP

Related skills

View all

Questions

How do I install U.CASH Pay?: Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does U.CASH Pay need an API key?: No required environment variable is listed on this record.
What transport does U.CASH Pay use?: U.CASH Pay is reached over HTTP.
When was U.CASH Pay last checked?: Last checked 2026-10-16. Pay x402 resources on U.CASH from your own wallet: view the price, pay on-chain, settle by hash.

mcp-ucash

A merchant-side MCP server for U.CASH Pay. Let Claude Desktop, Cursor, or any MCP client manage a merchant's pay.u.cash: create checkouts, verify settlement webhooks, and read settings + integration credentials.

Tools

create_checkout(amount, currency, title, external_reference) → hosted checkout URL + transaction id
verify_webhook(raw_body, signature_header) → HMAC verify an X-Webhook-Signature
get_integrations() → Discord/Telegram/BigCommerce/Ecwid/Wix credentials (from /v1/integrations)
get_settings() → safe agent settings (from /v1/settings)

Run

# one-liner: uv installs an isolated Python 3.10+ and the deps for you
uvx --from mcp-ucash python -m mcp_ucash

Or from source:

pip install "mcp[cli]"
export UXC_API_KEY=uxc_...          # agent API key, for /v1/* reads
export UCASH_CLOUD_TOKEN=st_...     # store cloud token, for create_checkout
export UCASH_WEBHOOK_SECRET=...     # for verify_webhook
python mcp_ucash.py

Claude Desktop / Cursor config

{
  "mcpServers": {
    "ucash": {
      "command": "uvx",
      "args": ["--from", "mcp-ucash", "python", "-m", "mcp_ucash"],
      "env": {
        "UXC_API_KEY": "uxc_...",
        "UCASH_CLOUD_TOKEN": "st_...",
        "UCASH_WEBHOOK_SECRET": "..."
      }
    }
  }
}

MCP directories

This repo ships the manifests the MCP directories read:

mcp.json - client/registry descriptor (Glama, MCP Registry).
smithery.yaml - build + start spec for Smithery.

License

MIT.