io.github.nesquikm/rubber-duck vs FreeToken — LLM API discovery
io.github.nesquikm/rubber-duck is an MCP server published by nesquikm. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). FreeToken — LLM API discovery is an MCP server published by freetoken.link. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-10. 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 |  io.github.nesquikm/rubber-duck | |
|---|---|---|
| Official MCP Registry | Listed Version: 1.18.0 Downloads/month (npm): 2 459 Downloads/week (npm): 987 Forks (GitHub): 24 Stars (GitHub): 180 Not marked · First seen |
Listed Version: 1.0.0 No figure published Not marked · First seen |
| npm registry (MCP servers) | Listed Version: 1.20.14 Downloads/month (npm): 2 459 Downloads/week (npm): 987 Forks (GitHub): 24 Stars (GitHub): 180 Not marked · First seen |
Not listed |
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 | io.github.nesquikm/rubber-duck | FreeToken — LLM API discovery |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 180 | No figure on GitHub |
| Forks (GitHub) (differs) | 24 | No figure on GitHub |
| Last release (differs) | 2026-11-02 | Not published |
| Where it runs (differs) | On your machine (mcp-rubber-duck) | Remote server (freetoken.link/mcp) |
| Transport (differs) | stdio | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 4, secrets among them: 3 | Not published |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/nesquikm/mcp-rubber-duck | Not stated |
| Changes in the last 7 days | 0 | 0 |
| First seen (differs) | 2026-10-11 | 2026-10-18 |
| Endpoint at the last check (differs) | no remote endpoint we check | Status out of date: last check 44 h ago returned HTTP 405 |
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
io.github.nesquikm/rubber-duck
Bridge to multiple LLMs and CLI agents: councils, debates, voting, and more
FreeToken — LLM API discovery
LLM API discovery: access conditions, dated costs, sampled checks and keyless configs. Read-only.
How to run each
io.github.nesquikm/rubber-duck As a local MCP server: npm package
claude mcp add --env "GEMINI_API_KEY=<YOUR_GEMINI_API_KEY>" --env "GROQ_API_KEY=<YOUR_GROQ_API_KEY>" --env "OPENAI_API_KEY=<YOUR_OPENAI_API_KEY>" --transport stdio rubber-duck -- npx -y mcp-rubber-duckRequires: GEMINI_API_KEY (secret), GROQ_API_KEY (secret), OPENAI_API_KEY (secret)
FreeToken — LLM API discovery As a remote MCP server
claude mcp add --transport http catalog https://freetoken.link/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only FreeToken — LLM API discovery 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 FreeToken — LLM API discovery publish no settings it asks for, so we do not compare settings.
What it can do: io.github.nesquikm/rubber-duck · What it can do: FreeToken — LLM API discovery · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.