Amazon Neptune vs Knowledge Graph RDBMS
Amazon Neptune is an MCP server published by awslabs. Marketplaces we read that list it: 1 (Docker MCP Catalog). 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 2026-10-13. 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 |  Amazon Neptune |  Knowledge Graph RDBMS |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:aaf8bad96551 Forks (GitHub): 1 805 Pulls (Docker Hub): 12 099 Stars (Docker Hub): 0 Stars (GitHub): 9 773 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.9 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 | Amazon Neptune | Knowledge Graph RDBMS |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 9 773 (better) | 1 (worse) |
| Pulls (Docker Hub) (differs) | 12 099 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 1 805 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (mcp/amazon-neptune-mcp-server) | On your machine (knowledge-graph-rdbms) |
| Transport | stdio | stdio |
| Tools it declares (differs) | 4 | Not published |
| Environment variables it asks for (differs) | 3, secrets among them: 0 | 2, secrets among them: 0 |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/awslabs/mcp | github.com/cunicopia-dev/knowledge-graph-rdbms |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
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
Amazon Neptune
Graph database queries with Cypher and Gremlin.
Knowledge Graph RDBMS
A label property graph on SQLite/Postgres with multi-ontology routing and a gated MCP server.
How to run each
Amazon Neptune As a local MCP server: Docker image
claude mcp add --transport stdio amazon-neptune -- docker run -i --rm mcp/amazon-neptune-mcp-serverKnowledge 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
The marketplaces of Knowledge Graph RDBMS publish no list of tools, so we do not compare tools.
Settings each asks for
Only Amazon Neptune asks for
AWS_PROFILEAWS_REGIONNEPTUNE_ENDPOINT
Only Knowledge Graph RDBMS asks for
KGRDBMS_DEFAULT_ONTOLOGYKGRDBMS_HOME
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: Amazon Neptune · What it can do: Knowledge Graph RDBMS · 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. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.