rayfin vs matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun)
rayfin is a plugin bundle for AI coding tools published by microsoft. Marketplaces we read that list it: 1 (Copilot CLI: github/awesome-copilot). matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun) is an MCP server published by matchwire.win. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-13. 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 |  rayfin |  matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun) |
|---|---|---|
| Copilot CLI: github/awesome-copilot | Listed Version: 0.4.2 Forks (GitHub): 70 Stars (GitHub): 640 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.0 Forks (GitHub): 0 Stars (GitHub): 0 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 | rayfin | matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun) |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 640 (better) | 0 (worse) |
| Forks (GitHub) (differs) | 70 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (api.matchwire.win/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/microsoft/rayfin | github.com/matchwire-win/matchwire-sdk |
| 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 checked yet |
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
rayfin
Getting-started router skill for Rayfin - scaffold a new app with the Rayfin CLI, then use the version-locked skill installed in the project.
matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun)
One row per game, matched across Kalshi, Polymarket US/Intl and Predict.fun. Mapping only.
How to run each
rayfin
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun) As a remote MCP server
claude mcp add --transport http mapping https://api.matchwire.win/mcp --header "x-api-key: <YOUR_X_API_KEY>"Requires: x-api-key header
Commands 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: rayfin · What it can do: matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun) · Compare two other plugins
Data comes from the public marketplace file https://github.com/github/awesome-copilot/blob/HEAD/.github/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.