Koskamo

MCP-Bastion

MCP-Bastion is a zero-infrastructure runtime middleware for the Model Context Protocol that provides enterprise-grade security. It blocks prompt injection, PII leakage, and resource exhaustion through features like exfiltration canaries, secret redaction, and JSONPath argument guards. It supports audit logging, cost-aware policies, and boundary mode for mandatory proxy authentication.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

MCP-Bastion logo, by vaquarkhanCommunity listingLocal stdioSource reviewed; not executedPublished by vaquarkhan
You need:pip install mcp-bastion-python[redis]pip install mcp-bastion-python[policy]
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 7 GitHub stars

What you can do with it

  • Block prompt injection and PII leakage
  • Redact secrets in tool outputs
  • Audit MCP interactions with JSONL logs
  • Enforce cost-aware policies and rate limits

Source and maintenance

Community listingRegistry 5.1.0
mcp-registry: io.github.vaquarkhan/mcp-bastion@5.1.0Source repository
Last repository push
Latest release
v5.1.0
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

mcp-bastion-python 5.1.0

pypi
mcp-bastion-python package definition
{
  "version": "5.1.0",
  "transport": "stdio",
  "identifier": "mcp-bastion-python",
  "registryType": "pypi"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mcp-bastion": {
      "command": "uvx",
      "args": [
        "mcp-bastion-python==5.1.0"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mcp-bastion": {
      "command": "uvx",
      "args": [
        "mcp-bastion-python==5.1.0"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mcp-bastion": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-bastion-python==5.1.0"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mcp-bastion": {
      "command": "uvx",
      "args": [
        "mcp-bastion-python==5.1.0"
      ]
    }
  }
}

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