agents.u.cash vs Coal — Payments for AI agents
agents.u.cash is an MCP server published by UdotCASH. Marketplaces we read that list it: 1 (Official MCP Registry). Coal — Payments for AI agents is an MCP server published by emmanuel39hanks. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-30. 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 |  Coal — Payments for AI agents | |
|---|---|---|
| Official MCP Registry | Listed Version: 0.10.0 No figure published Not marked · First seen |
Listed Version: 1.3.0 Forks (GitHub): 0 Stars (GitHub): 1 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 | agents.u.cash | Coal — Payments for AI agents |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | No figure on GitHub | 1 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (ghcr.io/udotcash/agents-u-cash-mcp:0.10.0) | Remote server (mcp.usecoal.xyz/api/mcp) |
| Transport (differs) | stdio | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence | Not stated | Not stated |
| Repository (differs) | Not stated | github.com/emmanuel39hanks/coal |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Not responding since 2026-10-26 |
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
agents.u.cash
Non-custodial 402 payments for agents. 88-tool stdio seller MCP + hosted keyless buyer twin.
Coal — Payments for AI agents
Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.
How to run each
agents.u.cash As a local MCP server: Docker image
claude mcp add --transport stdio agents-u-cash -- docker run -i --rm ghcr.io/udotcash/agents-u-cash-mcp:0.10.0Coal — Payments for AI agents As a remote MCP server
claude mcp add --transport http coal https://mcp.usecoal.xyz/api/mcp --header "X-Coal-Agent-Key: <YOUR_X_COAL_AGENT_KEY>" --header "X-Coal-Api-Key: <YOUR_X_COAL_API_KEY>"Requires: X-Coal-Agent-Key header, X-Coal-Api-Key header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Coal — Payments for AI agents has a remote endpoint we check. How we check endpoints
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: agents.u.cash · What it can do: Coal — Payments for AI agents · Compare two other plugins
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.