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Security• MCP Alternatives Guide

Best Alternatives to MCP Bastion

Looking for an alternative to MCP Bastion? Whether you need a different runtime environment, custom authentication support, or alternative API integrations in the Security ecosystem, we have cataloged and compared the top alternative MCP servers below.

Browse all Security servers →View MCP Bastion Specs →
MCP Bastion logo
Target Reference Server

MCP Bastion Overview

mcp-bastion places a standard MCP server between an MCP client and its upstream servers, adding health checks, automatic reconnection, runtime security controls, and audit logging. It exposes control tools that let an agent inspect connection health and recover a disconnected server. Reach for it when long-running agent sessions need connection recovery, tool-definition protection, authorization, or traceable security decisions without changing the upstream servers.

Primary Use Cases for MCP Bastion:
  • Recover disconnected MCP servers during long-running agent sessions
  • Place runtime authorization between agents and upstream MCP tools
  • Detect tool-definition changes and configuration drift
  • Record redacted audit events for security and compliance review

Specification Matrix: MCP Bastion vs Alternatives

Direct comparison of key metrics, runtimes, authentication methods, and community popularity.

Server NameRuntimeAuthPricingGitHub StarsDownloadsAction
MCP Bastion logoMCP Bastion (Target)
npxNo auth requiredFree7—Current
Auth0 MCP Server logoAuth0 MCP Servernpx——122—
Agent Security Scanner MCP logoAgent Security Scanner MCPnpx——123—
Shodan logoShodannpxAPI keyBring your own API key (usage-based cost)188—
Binary Ninja MCP logoBinary Ninja MCPnpxNo auth requiredFree4561
AI Distiller MCP logoAI Distiller MCPnpxNo auth requiredFree172—
Vulnify logoVulnifynpx——2—
Privacyscrubber MCP logoPrivacyscrubber MCPnpxNo auth requiredFree3—
EchelonGraph CVE & Exposure logoEchelonGraph CVE & ExposurenpxNo auth requiredFree20—
4da MCP Server logo4da MCP ServernpxNo auth requiredFree——
Qurl MCP logoQurl MCPnpxAPI keyBring your own API key (usage-based cost)4—
Pkgproof logoPkgproofnpx————
Supply Chain Guard logoSupply Chain GuardnpxNo auth requiredFree7—

Detailed Evaluation of MCP Bastion Alternatives

Auth0 MCP Server logo

Auth0 MCP Server

Runtime: npxSecurity

Manage Auth0 applications, APIs, Actions, logs, forms, and users through natural-language MCP tools.

Key Features:
Natural-language Auth0 tenant management
Application, API, Action, log, form, and user operations
OAuth 2.0 device authorization
3 0 122
Agent Security Scanner MCP logo

Agent Security Scanner MCP

Runtime: npxSecurity

Scans agent-written code, MCP servers, prompts, actions, and dependencies for security risks and package hallucinations.

Key Features:
Project, file, and Git diff security scans
MCP server, prompt, and agent action checks
AI-suggested package existence verification
3 0 123
Shodan logo

Shodan

Runtime: npxSecurity

Connects AI agents to Shodan for host reconnaissance, device search, DNS lookups, and CVE intelligence.

Key Features:
IP reconnaissance with ports, banners, TLS, cloud, and CVE data
Shodan device search with pagination and facets
Forward, reverse, and domain DNS intelligence
2 0 188
Binary Ninja MCP logo

Binary Ninja MCP

Runtime: npxSecurity

Connects Binary Ninja to MCP clients for querying, decompiling, annotating, renaming, and retyping loaded binaries.

Key Features:
Function discovery, decompilation, IL, and disassembly
Function, variable, and data-label renaming
Address and function comment management
11 1 456
AI Distiller MCP logo

AI Distiller MCP

Runtime: npxSecurity

Distills codebases into compact API context and generates prompts for documentation, refactoring, security, and other AI analyses.

Key Features:
Distills individual files and directories into compact code structure
Filters public APIs, types, imports, documentation, and implementation details
Generates prompts for security, refactoring, bugs, documentation, and performance
5 0 172
Vulnify logo

Vulnify

Runtime: npxSecurity

Check, record, and retrieve policy decisions before AI agents read, write, delete, export, or send data.

Key Features:
Runtime ALLOW, REVIEW, or BLOCK decisions
Audited consequential-action checks
Policy testing and dry-run evaluation
2 0 2
Privacyscrubber MCP logo

Privacyscrubber MCP

Runtime: npxSecurity

Locally masks PII and secrets in prompts, files, shell output, git diffs, and RAG chunks before LLM processing.

Key Features:
Local PII, secret, credential, and custom-pattern masking
Token restoration through volatile in-memory session maps
Guarded shell, file, Git, patch, and tool-argument operations
10 0 3
EchelonGraph CVE & Exposure logo

EchelonGraph CVE & Exposure

Runtime: npxSecurity

Keyless MCP access to CVE intelligence, KEV, EPSS, SBOM checks, advisories, and Shodan-derived exposure data.

Key Features:
Searches and summarizes fused CVE intelligence
Checks packages, CPE products, SBOMs, and lockfiles
Reports CISA KEV and EPSS history
1 0 20
4da MCP Server logo

4da MCP Server

Runtime: npxSecurity

Scans dependencies for vulnerabilities, evaluates upgrade safety and impact, and preserves project decisions and agent memory.

Key Features:
OSV.dev vulnerability scanning across supported lockfiles
Release, deprecation, yank, and freshness analysis
Project-aware upgrade impact and planning
0 0
Qurl MCP logo

Qurl MCP

Runtime: npxSecurity

Creates and manages expiring qURL access links with policy controls, token rotation, session management, and one-time link delivery.

Key Features:
Policy-bound expiring qURL creation
IP, geo, user-agent, and AI-agent access filters
One-time use and session limits
1 0 4
Pkgproof logo

Pkgproof

Runtime: npxSecurity

Verify npm packages through advisories, install-script, typosquat, scope, repository, and provenance-related checks.

Key Features:
Verify npm packages and exact versions
Check advisories and install scripts
Detect typosquat and combosquat names
1 0
Supply Chain Guard logo

Supply Chain Guard

Runtime: npxSecurity

Offline MCP security scanner for vetting packages, extensions, plugins, images, and CI actions across 15 ecosystems.

Key Features:
Offline local scanning
15-ecosystem threat matching
Manifest and lockfile discovery at any depth
8 0 7

Frequently Asked Questions: MCP Bastion Alternatives

The top-rated alternatives to MCP Bastion in the Security category include Auth0 MCP Server, Agent Security Scanner MCP, Shodan. These servers offer complementary or alternative capabilities depending on your deployment stack and authentication requirements.

MCP Bastion and its alternatives vary by runtime requirement (Node.js/npx, Python/uvx, Docker, or remote HTTP/SSE endpoints). Check the specification comparison table above to verify command requirements before installing.

It varies by server. Pricing, auth and license are declared by each maintainer and shown in the comparison table where provided — a dash means nothing was declared, so check that project's own site before assuming it's free.

Click the "Compare side-by-side →" button on any alternative card to see an in-depth comparison matrix covering feature lists, stars, npm downloads, install configurations, and schema specifications.