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Originally shared on Hacker News

Bastion

A native macOS app that runs each MCP server once for every client on the Mac, storing credentials in the Keychain and logging every call.

Last shared
01 / The problem

What it addresses

MCP servers need per-client isolation with secure credential storage and a log of every call.

02 / Source history

Shared over time

Each entry reflects what was shared on that date. Details may have changed since then.

  1. Bastion

    A native macOS app that runs each MCP server once for every client on the Mac, storing credentials in the Keychain and logging every call.

    Problem: MCP servers need per-client isolation with secure credential storage and a log of every call.

    Posted by @olouv · Original comment ↗

    “Bastion - (https://bastion.mgcrea.io/), which runs each MCP server once for every client on the Mac, with credentials in the Keychain and every call logged.”
    Links shared