halliday-payments vs U.CASH Pay (merchant MCP)
halliday-payments is a plugin bundle for AI coding tools published by HallidayInc. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). U.CASH Pay (merchant MCP) is an MCP server published by UdotCASH. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-16. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  halliday-payments | |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.0.10 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.5 Downloads/month (PyPI): 112 Downloads/week (PyPI): 30 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | halliday-payments | U.CASH Pay (merchant MCP) |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 0 | No figure on GitHub |
| Forks (GitHub) (differs) | 0 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (mcp-ucash) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 1 | Not published |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/hallidayinc/hallidayclaudeplugin | Not stated |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
halliday-payments
A Clade Code plugin for development with Halliday Payments, the all-in-one platform for integrating crypto deposits, fiat-to-crypto onramps, and cross-chain swaps.
U.CASH Pay (merchant MCP)
U.CASH Pay merchant MCP: create checkouts, verify webhooks, read settings. Non-custodial.
How to run each
halliday-payments As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install halliday-payments@claude-communityU.CASH Pay (merchant MCP) As a local MCP server: PyPI package
claude mcp add --transport stdio mcp-ucash -- uvx mcp-ucashCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: halliday-payments · What it can do: U.CASH Pay (merchant MCP) · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.