Kalshi Kernel vs io.github.onefreeman1337/osf-data-marketplace
Kalshi Kernel is an MCP server published by copyleftdev. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.onefreeman1337/osf-data-marketplace is an MCP server published by onefreeman1337. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-19. 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 |  Kalshi Kernel | |
|---|---|---|
| Official MCP Registry | Listed Version: 0.1.1 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Listed Version: 2.0.8 Downloads/month (npm): 126 Downloads/week (npm): 34 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 | Kalshi Kernel | io.github.onefreeman1337/osf-data-marketplace |
|---|---|---|
| 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) | On your machine (ghcr.io/copyleftdev/kalshi-kernel:0.1.1) | Remote server (api.osf-master-server.com/mcp) |
| Transport (differs) | stdio | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 4, secrets among them: 1 | Not published |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/copyleftdev/kalshi-kernel | Not stated |
| Changes in the last 7 days (differs) | 4 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Not responding since 2026-10-14 |
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
Kalshi Kernel
Unofficial safety-focused MCP server for Kalshi market data and explicitly authorized trading
io.github.onefreeman1337/osf-data-marketplace
8.1M+ US gov and science data via x402 USDC. 21 tools, $0.001 sample tier, sanctions, SEC, CVEs.
How to run each
Kalshi Kernel As a local MCP server: Docker image
claude mcp add --env "KALSHI_API_KEY_ID=<YOUR_KALSHI_API_KEY_ID>" --transport stdio kalshi-kernel -- docker run -i --rm -e KALSHI_API_KEY_ID ghcr.io/copyleftdev/kalshi-kernel:0.1.1Requires: KALSHI_API_KEY_ID (secret)
io.github.onefreeman1337/osf-data-marketplace As a remote MCP server
claude mcp add --transport http osf-data-marketplace https://api.osf-master-server.com/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only io.github.onefreeman1337/osf-data-marketplace 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
The marketplaces of io.github.onefreeman1337/osf-data-marketplace publish no settings it asks for, so we do not compare settings.
What it can do: Kalshi Kernel · What it can do: io.github.onefreeman1337/osf-data-marketplace · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.