read-only-postgres vs PlainQuery | MCP DB Agent
read-only-postgres is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑29.
read-only-postgres is a plugin bundle for AI coding tools published by jawwadfirdousi. No marketplace we read lists it any more. PlainQuery | MCP DB Agent is an MCP server published by Jarvis-27. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-05. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  PlainQuery | MCP DB Agent | |
|---|---|---|
| Community marketplace jawwadfirdousi/agent-skills | Removed on 2026-10-29 Version: 0.1.1 Forks (GitHub): 1 Stars (GitHub): 15 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.0.1 Forks (GitHub): 0 Stars (GitHub): 0 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 | read-only-postgresno longer listed · | PlainQuery | MCP DB Agent |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 15 | 0 |
| Forks (GitHub) (differs) | 1 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (plainquery.in/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/jawwadfirdousi/agent-skills | github.com/jarvis-27/mcp-db-agent |
| Changes in the last 7 days | 0 | 0 |
| First seen (differs) | 2026-10-22 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Status out of date: no HTTP response at the last check 2 days ago |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of read-only-postgres
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Create, connect, and interact with an AlloyDB for PostgreSQL database and data.
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Explore and query PostgreSQL read-only: catalogue search, schema introspection and bounded queries.
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postgres ai.waystation/postgres
Connect to your PostgreSQL database to query data and schemas.
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Single plugin with intelligent routing — generic PG always available, Azure skills gated by connection detection
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Bounded, read-only PostgreSQL access for AI assistants: nine DBA tools, compact CSV output
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mcp-postgres-nl-query io.github.infoinlet-marketplace/mcp-postgres-nl-query
RLS/tenant-aware Postgres for AI agents — schema, read-only SQL, NL→SQL with safety rails.
What each says it does
read-only-postgres
Execute read-only SQL queries against PostgreSQL databases.
PlainQuery | MCP DB Agent
Query PostgreSQL databases in plain English — LLM-generated, safety-validated SQL.
How to run each
read-only-postgres
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
PlainQuery | MCP DB Agent As a remote MCP server
claude mcp add --transport http mcp-db-agent https://plainquery.in/mcp/ --header "X-API-Key: <YOUR_X_API_KEY>"Requires: X-API-Key header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only PlainQuery | MCP DB Agent has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: read-only-postgres · What it can do: PlainQuery | MCP DB Agent · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. 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.