U.CASH Pay — Claude Code MCP server: what it does, how to install
Merchant-side MCP server for pay.u.cash: generate hosted checkout links, validate webhook signatures, and inspect integration credentials.
claude mcp add --transport http ucash-pay https://mcp.u.cash/What U.CASH Pay does
This server exposes merchant tools from the pay.u.cash platform to coding agents. Using create_checkout, it generates hosted checkout URLs and transaction identifiers based on amount and currency. The verify_webhook tool validates incoming payload HMAC hashes against the X-Webhook-Signature header.
Agents can also call get_integrations to fetch credentials for external platforms like Discord, Telegram, Ecwid, Wix, and BigCommerce. If running locally via Python, you must supply UXC_API_KEY, UCASH_CLOUD_TOKEN, and UCASH_WEBHOOK_SECRET. Without the store cloud token, checkout creation fails.
What it helps with
- generate hosted payment checkouts with transaction IDs
- verify incoming webhook signatures with HMAC
- inspect store credentials for Discord, Telegram, and e-commerce platforms
- read agent configuration settings from pay.u.cash
Example prompts for the agent
- Create a checkout link for 25 USD for order reference #4490 via U.CASH.
- Verify this incoming webhook payload against the signature header.
- Retrieve our current Telegram and Discord integration keys from U.CASH.
How to install U.CASH Pay
Platform CLI: remote server
claude mcp add --transport http ucash-pay https://mcp.u.cash/Platform CLI: remote server
codex mcp add ucash-pay --url https://mcp.u.cash/Config file
{
"mcpServers": {
"ucash-pay": {
"url": "https://mcp.u.cash/"
}
}
}Config file
{
"servers": {
"ucash-pay": {
"type": "http",
"url": "https://mcp.u.cash/"
}
}
}Platform CLI: remote server
gemini mcp add -t http ucash-pay https://mcp.u.cash/Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about U.CASH Pay
How to install U.CASH Pay in Claude Code?
Run claude mcp add --transport http ucash-pay https://mcp.u.cash/. Claude Code connects directly to the remote HTTP endpoint.
What does the U.CASH Pay MCP server do?
It allows your coding agent to interact with pay.u.cash merchant tools. It builds checkout pages, verifies HMAC signatures, and checks store connection keys.
What environment variables are required for a local setup?
A local process needs UXC_API_KEY for read endpoints, UCASH_CLOUD_TOKEN for checkout creation, and UCASH_WEBHOOK_SECRET for webhook validation.
