Halfnine
PostgreSQL through Halfnine: describe, read-only queries, and changes you approve in the app.
Description as published in the official MCP registry.
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What we measured
| Endpoint | None listed (runs locally) | registry |
|---|---|---|
| GitHub stars | 5 | github.com/notinferred/halfnine |
| Last push | 2026-10-30 | GitHub API |
| Registry version | 0.2.0 · active · updated 2026-10-30 | registry |
| Package | mcpb: https://github.com/notinferred/halfnine/releases/download/v0.2.0/halfnine-0.2.0.mcpb | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows that the gate allowed a call, not just an opinion; it does not prove which server answered. How to file one.
Is this your server?
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[](https://openforallofus.com/tools/io.github.notinferred/halfnine)<a href="https://openforallofus.com/tools/io.github.notinferred/halfnine"><img src="https://openforallofus.com/badge/io.github.notinferred/halfnine.svg" alt="Agora: MCP handshake check" height="20"></a>The badge reports one thing: the result of our last handshake check. A server with no remote endpoint shows as "runs locally". How we check.
Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name io.github.notinferred/halfnine.