MCP-Bridge

MCP server · GitHub · ★ 923 · graded 2026-10-23Source linked

A middleware to provide an openAI compatible endpoint that can call MCP tools

No outside reports on file

MCP-Bridge is a network component that sits between an AI and your tools—it needs proper isolation, authentication, and monitoring to avoid becoming an attack vector for both data theft and unauthorized actions.

Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

Local filesNo local folder access notedLOW
Command executionNo shell command runner notedLOW
Network reachLocal or standard API callsLOW
CredentialsNo API token requiredLOW
Package sourceGitHub (SecretiveShell/MCP-Bridge)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

No npm or PyPI package is listed. Install from source: github.com/SecretiveShell/MCP-Bridge ↗

All setup options ↓

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Everything known

We found nothing about this project in the sources we read (last checked 2026-10-30). That does not mean it has no problems.

0 incidents · 0 advisories · 0 news articles · 0 community threads · checked 2026-10-30

Popularity grade: C (from public signals such as stars and downloads, not a code review). Graded 2026-10-23.

Sources we read: OSV, GitHub Advisory Database, CISA Known Exploited Vulnerabilities, 44 security news feeds and our incident library. Last checked 2026-10-30.

Check a specific version →

About MCP-Bridge

MCP-Bridge creates a middleman that translates OpenAI-compatible API requests into MCP (Model Context Protocol) tool calls. This lets you use MCP tools through standard OpenAI chat endpoints instead of direct MCP connections.

Who it’s for

Developers building AI applications who want to use MCP tools but need OpenAI API compatibility for their existing code or integrations.

Alternatives

Direct MCP integration: Use MCP protocol directly without a translation layer
LangChain/LlamaIndex tool bindings: Framework-native tool integration without middleware
Custom API wrapper: Build a minimal endpoint for your specific tools instead of a generic bridge

Setup

Check these steps against the project’s own instructions before running anything.

Follow the project's README for installation and configuration steps, as this is a bridge that requires both MCP server setup and endpoint configuration.

Why this grade

CC — Moderate risk signals

Signal-based grade (3/7 points): well starred on GitHub, public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

33/100

GitHub stars: 923
Listing last refreshed: 2026-10-29

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Risks to watch for

Access to all MCP tools: The bridge can call any MCP tool connected to it, so a compromised AI model or prompt injection could abuse those tools
Credential pass-through: API keys and authentication tokens for downstream MCP services flow through this middleware and could be exposed if it's not secured
Prompt injection via tool results: Malicious data returned by MCP tools could trick the AI into misbehaving or leaking information
Man-in-the-middle exposure: If running over unencrypted connections, traffic between client and bridge is visible to network observers
No built-in request filtering: The bridge may not validate or limit what tools get called, so any prompt can potentially request any action

How to lower the risk

Least-privilege permissions

Run the bridge with minimal system permissions
Restrict MCP tools to only what's actually needed

Network isolation

Use strong authentication between client and bridge
Run on a private network or behind a firewall

Monitoring

Log all tool calls and their inputs/outputs
Alert on unusual or repeated failed requests

Red flags to watch for

Bridge crashes or hangs frequently
Unexpected tools being called from normal prompts
Performance slowdowns or high memory use

Questions

How do I install MCP-Bridge?

MCP-Bridge does not publish a standalone npm or PyPI package. Clone or follow the setup instructions in its source repository at github.com/SecretiveShell/MCP-Bridge.

Are there security reports about MCP-Bridge?

No reports found for this package in our research (last checked 2026-10-30). MCP-Bridge currently holds Grade C (Moderate risk signals) based on public adoption and transparency signals. Key risk areas to watch include access to all mcp tools, credential pass-through, prompt injection via tool results.

Is MCP-Bridge actively maintained?

MCP-Bridge has 923 GitHub stars. Our directory data was last refreshed on 2026-10-29. Check recent commit activity, release tags, and open issues at github.com/SecretiveShell/MCP-Bridge before pinning it in production.

What are alternatives to MCP-Bridge?

Notable alternatives to MCP-Bridge include Direct MCP integration (Use MCP protocol directly without a translation layer), LangChain/LlamaIndex tool bindings (Framework-native tool integration without middleware), Custom API wrapper (Build a minimal endpoint for your specific tools instead of a generic bridge). You can also compare MCP-Bridge side by side with other MCP servers in the Related tools section on this page.

Maintain or use MCP-Bridge? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade C for MCP-Bridge

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for MCP-Bridge](https://agentarmorhq.com/api/badge/secretiveshell-mcp-bridge)](https://agentarmorhq.com/skills/secretiveshell-mcp-bridge)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/secretiveshell-mcp-bridge"><img src="https://agentarmorhq.com/api/badge/secretiveshell-mcp-bridge" alt="AgentArmorHQ Risk Grade for MCP-Bridge" height="20" /></a>

Terminal check:

terminal

curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "secretiveshell-mcp-bridge"

Share with your security lead

Need sign-off to use MCP-Bridge? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: MCP-Bridge
- **Listing URL:** https://agentarmorhq.com/skills/secretiveshell-mcp-bridge
- **Type:** App connector
- **Risk Grade:** Grade C (Moderate risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 923 GitHub stars

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** No shell command runner noted
- **Network reach:** Local or standard API calls
- **Credentials:** No API token required
- **Package source:** GitHub (SecretiveShell/MCP-Bridge)

#### Recommended Hardened Setup
- **Source Repo:** https://github.com/SecretiveShell/MCP-Bridge
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type: App connector
Publisher: SecretiveShell
Source code: github.com/SecretiveShell/MCP-Bridge
Est. context load: ~850 tokens / turn (~5 tool schemas, 0.43% of 200k context)
Popularity: 923 GitHub stars
Last updated: 2026-10-29
Last graded: 2026-10-23

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