neon vs Knowledge Graph RDBMS
neon is a plugin bundle for AI coding tools published by neondatabase. Marketplaces we read that list it: 2 (Claude Code: claude-plugins-official, Claude Code: claude-plugins-community). Knowledge Graph RDBMS is an MCP server published by cunicopia-dev. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-14. 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 |  neon |  Knowledge Graph RDBMS |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 2.0.1 Forks (GitHub): 21 Stars (GitHub): 100 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Listed Version: 1.1.1 Forks (GitHub): 21 Stars (GitHub): 100 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.9 Downloads/month (PyPI): 103 Downloads/week (PyPI): 64 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 | neon | Knowledge Graph RDBMS |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 100 (better) | 1 (worse) |
| Forks (GitHub) (differs) | 21 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (mcp.neon.tech/mcp) | On your machine (knowledge-graph-rdbms) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 2, secrets among them: 0 |
| Parts of the bundle (differs) | 9 | Not a bundle |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/neondatabase/agent-skills | github.com/cunicopia-dev/knowledge-graph-rdbms |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | not checked yet | 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
neon
Manage your Neon projects and databases with the neon-postgres agent skill and the Neon MCP Server.
Knowledge Graph RDBMS
A label property graph on SQLite/Postgres with multi-ontology routing and a gated MCP server.
How to run each
neon As a Claude Code plugin
/plugin install neon@claude-plugins-officialKnowledge Graph RDBMS As a local MCP server: PyPI package
claude mcp add --transport stdio knowledge-graph-rdbms -- uvx knowledge-graph-rdbms --from "knowledge-graph-rdbms[mcp]" kgrdbms-mcpCommands 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
The marketplaces of neon publish no settings it asks for, so we do not compare settings.
What it can do: neon · What it can do: Knowledge Graph RDBMS · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-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.