Amazon Neptune vs io.github.agentic-eng/a2db
Amazon Neptune is an MCP server published by awslabs. Marketplaces we read that list it: 1 (Docker MCP Catalog). io.github.agentic-eng/a2db is an MCP server published by agentic-eng. 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 |  Amazon Neptune |  io.github.agentic-eng/a2db |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:aaf8bad96551 Forks (GitHub): 1 806 Pulls (Docker Hub): 12 108 Stars (Docker Hub): 0 Stars (GitHub): 9 779 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.2.1 Downloads/month (PyPI): 173 Downloads/week (PyPI): 43 Forks (GitHub): 0 Stars (GitHub): 2 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 | io.github.agentic-eng/a2db |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 9 779 (better) | 2 (worse) |
| Pulls (Docker Hub) (differs) | 12 108 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 1 806 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (mcp/amazon-neptune-mcp-server) | On your machine (a2db) |
| Transport | stdio | stdio |
| Tools it declares (differs) | 4 | Not published |
| Environment variables it asks for (differs) | 3, secrets among them: 0 | Not published |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/awslabs/mcp | github.com/agentic-eng/a2db |
| 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.
io.github.agentic-eng/a2db
Safe, read-only database access for AI agents. 5 databases, batch queries, SQLGlot.
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-serverio.github.agentic-eng/a2db As a local MCP server: PyPI package
claude mcp add --transport stdio a2db -- uvx a2dbCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of io.github.agentic-eng/a2db publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of io.github.agentic-eng/a2db publish no settings it asks for, so we do not compare settings.
What it can do: Amazon Neptune · What it can do: io.github.agentic-eng/a2db · 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.