JDBC MCP Server vs Grain SQL
JDBC MCP Server is an MCP server published by igorolv. Marketplaces we read that list it: 1 (Official MCP Registry). Grain SQL is an MCP server published by pattrnlabs. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-20. 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 |  JDBC MCP Server |   Grain SQL |
|---|---|---|
| Official MCP Registry | Listed Version: 0.2.0 Forks (GitHub): 1 Stars (GitHub): 1 Not marked · First seen |
Listed Version: 0.10.35 Downloads/month (npm): 5 097 Downloads/week (npm): 1 476 Forks (GitHub): 1 Stars (GitHub): 3 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 | JDBC MCP Server | Grain SQL |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 1 (worse) | 3 (better) |
| Forks (GitHub) | 1 | 1 |
| Last release (differs) | Not published | 2026-10-20 |
| Where it runs (differs) | On your machine (ghcr.io/igorolv/jdbc-mcp-server:0.2.0) | On your machine (grain-tools) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 0 | 3, secrets among them: 1 |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/igorolv/jdbc-mcp-server | github.com/pattrnlabs/grain |
| Changes in the last 7 days (differs) | 0 | 4 |
| 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
JDBC MCP Server
Read-only SQL, plans, schema for AI agents: PostgreSQL, Oracle, SQL Server, Firebird, SQLite, JDBC
Grain SQL
Run SQL queries and inspect database schemas through safe, visible MCP tools.
How to run each
JDBC MCP Server As a local MCP server: Docker image
claude mcp add --transport stdio jdbc-mcp-server -- docker run -i --rm --mount "type=bind,src=<YOUR_DATA_DIR>,dst=/data" ghcr.io/igorolv/jdbc-mcp-server:0.2.0Grain SQL As a local MCP server: npm package
claude mcp add --env "GRAIN_CONNECTIONS=<YOUR_GRAIN_CONNECTIONS>" --transport stdio grain -- npx -y grain-toolsRequires: GRAIN_CONNECTIONS (secret)
Commands 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
Only JDBC MCP Server asks for
JDBC_MCP_RESOURCES_ENABLED
Only Grain SQL asks for
GRAIN_CONNECTIONS (secret)GRAIN_MAX_ROWSGRAIN_MCP_SAFE_MODE
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: JDBC MCP Server · What it can do: Grain SQL · Compare two other plugins
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.