Bastion (gowthaman90) MCP Server

A reliability & security proxy for the Model Context Protocol (MCP). _Self-healing connections, runtime tool-security, and a compliance-mapped audit trail for your MCP servers._. It runs locally over stdio via the published package.

People who work with ai security and owasp and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-15 · ★ 6 · #62 OF 204 MAINTAINED SECURITY · VERIFIED 2026-09-18

Apache-2.0 · TypeScript servers · how we verify → /methodology

01 · Install Bastion (gowthaman90)

Claude Code

claude mcp add gowthaman90-mcp-bastion -- npx -y mcp-bastion

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "gowthaman90-mcp-bastion": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-bastion"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

npm package mcp-bastion - unscoped; check the name against the project README before installing

registry namespace io.github.Gowthaman90 is GitHub-verified and matches the repo owner

03 · What Bastion (gowthaman90) can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.0.2 · 2026-09-08

Fixes two unchecked type assertions in the new end-to-end test file that failed tsc --noEmit on 1.0.1; npm run check (format, lint, typecheck, 219 tests) now passes end to end. No functional change from v1.0.0 (SDK 2.0…

v1.0.1 · 2026-09-08

Follow-up to v1.0.0: the SDK 2.0 packages require Node >= 20, so engines and the CI matrix (20 / 22 / 24) are updated and the new sources are prettier-formatted (the 1.0.0 CI run failed on format:check). No functional…

v1.0.0 · 2026-09-08

The stateless-era release. mcp-bastion now runs on the MCP TypeScript SDK 2.0 line (@modelcontextprotocol/server / client / core / node), speaks both protocol eras from one process, and adds the two defences only a…

04 · Who maintains Bastion (gowthaman90)

mcp-bastion is maintained by gowthaman90. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/gowthaman90/mcp-bastion
category: security - ranked #62 of 204 actively-maintained security servers as of 2026-09-18.
release cadence: 9 releases in the last 90 days (latest 2026-09-08)
registry: io.github.Gowthaman90/mcp-bastion (active, first published 2026-07-16)
packages: npm:mcp-bastion

06 · Bastion (gowthaman90) FAQ

What is Bastion (gowthaman90)?

Is Bastion (gowthaman90) still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-15 and it shipped 9 releases in the last 90 days. We re-verify nightly.

How do I install Bastion (gowthaman90)?

Run `npx -y mcp-bastion`. You can also paste the ready-made client config above.

Does Bastion (gowthaman90) run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Bastion (gowthaman90)

Alternatives to Bastion (gowthaman90)

Maintained security servers if Bastion (gowthaman90) isn't the fit.

Pairs well with

Servers that cover what Bastion (gowthaman90) doesn't - only shown when the pairing reason fits the companion.

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