Javadocs vs Kotlin & Java Library Sources
Javadocs is an MCP server published by docker. Marketplaces we read that list it: 1 (Docker MCP Catalog). Kotlin & Java Library Sources is an MCP server published by aoreshkov. Marketplaces we read that list it: 2 (Official MCP Registry, Community GitHub marketplaces). As of our marketplace pass on 2026-10-23. 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 |  Javadocs |  Kotlin & Java Library Sources |
|---|---|---|
| Docker MCP Catalog | Listed Version: not stated No figure published Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.9.0 Forks (GitHub): 0 Stars (GitHub): 13 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 | Javadocs | Kotlin & Java Library Sources |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | No figure on GitHub | 13 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release (differs) | Not published | 2026-10-21 |
| Where it runs (differs) | Remote server (www.javadocs.dev/mcp) | On your machine (ghcr.io/aoreshkov/kotlin-lib-mcp:0.9.0) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares (differs) | 8 | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | Not a bundle | 5 |
| Licence | Apache-2.0 | Apache-2.0 |
| Repository (differs) | Not stated | github.com/aoreshkov/kotlin-lib-mcp |
| Changes in the last 7 days (differs) | 0 | 7 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 3 days ago | no remote endpoint we check |
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
Javadocs
Access to Java, Kotlin, and Scala library documentation.
Kotlin & Java Library Sources
Kotlin/Java library sources, public API and KDoc from the real Maven sources jar, for AI agents
How to run each
Javadocs As a remote MCP server
claude mcp add --transport http javadocs https://www.javadocs.dev/mcpKotlin & Java Library Sources As a local MCP server: Docker image
claude mcp add --transport stdio kotlin-lib-mcp -- docker run -i --rm -v kotlin-lib-mcp-cache:/home/mcp/.cache ghcr.io/aoreshkov/kotlin-lib-mcp:0.9.0 --max-concurrent-fetches 2Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Javadocs has a remote endpoint we check. How we check endpoints
Tools each declares
The marketplaces of Kotlin & Java Library Sources publish no list of tools, so we do not compare tools.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: Javadocs · What it can do: Kotlin & Java Library Sources · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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.