mcp-client-capabilities — security grade UNSAFE, quality 69/100

Security audit verdict: UNSAFE · quality 69/100

Flagged: reverse shell, opens a tunnel service. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

by apify · MCP Server · ★ 80

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

🔒 Is mcp-client-capabilities safe to install? View the security audit →

About mcp-client-capabilities

MCP Client Capabilities This package strives to be the most up-to-date database of all Model Context Protocol (MCP) clients and their capabilities, to enable MCP servers understand what features an MCP client supports and how to respond to it in order to provide the best user and agent experience. Unfortunately, the MCP protocol capability negotiation during the initial handshake is not sufficient for that—see Background bellow for details. In other words, this package is the programmatic version of the community MCP clients table. How it works This package provides a JSON file called that lists all known MCP clients, their metadata and capabilities. It's a single JSON file to make it easy for multiple programming languages to access the data while enabling TypeScript type safety for the NPM package. The JSON file contains an object where keys are client names and values an object with information about the MCP client: typescript { // Client name corresponds to from the MCP client's request, e.g. "ExampleClient" "": { // Display name of the MCP client, e.g. "Example Client" title: string, // URL to the homepage of

mcpmcp-clientsmodel-context-protocol

Quick Facts

Stars80
Forks10
LanguageTypeScript
CategoryMCP Server
LicenseApache-2.0
Quality Score69.3475729441181/100
Open Issues8
Last Updated2026-09-02
Created2025-08-26
Platformscli, mcp, node
Est. Tokens~10k

Compatible Skills

These tools work well together with mcp-client-capabilities for enhanced workflows:

  • square-mcp-server — semantic(0.58)+same_lang+similar_pop+shared_platform (55%)
  • mcp-server — semantic(0.43)+same_lang+similar_pop+shared_platform (50%)
  • hypertool-mcp — semantic(0.44)+rare_topics+same_lang+similar_pop+shared_platform (50%)
  • lunchmoney-mcp — semantic(0.40)+same_lang+similar_pop+shared_platform (49%)
  • mcp-server — semantic(0.53)+same_lang+similar_pop+shared_platform (49%)

mcp-client-capabilities alternative? Top 4 similar tools

Looking for a mcp-client-capabilities alternative? If you're comparing mcp-client-capabilities with other mcp server tools, these 4 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • hypertool-mcp by toolprint · ⭐ 155

    Dynamically expose tools from proxied servers based on an Agent Persona

  • dify-mcp-client by 3dify-project · ⭐ 172

    MCP Client as an Agent Strategy Plugin. Support GUI operation via UI-TARS-SDK.

  • remote-mcp-server by gleanwork · ⭐ 164

    Remote MCP Server that securely connects Enterprise context with your LLM, IDE, or agent platform of choice.

  • mcp-server by e2b-dev · ⭐ 394

    Giving Claude ability to run code with E2B via MCP (Model Context Protocol)

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Frequently Asked Questions

What is mcp-client-capabilities?

mcp-client-capabilities is Index of all Model Context Protocol (MCP) clients and their capabilities. It is categorized as a MCP Server with 80 GitHub stars.

What programming language is mcp-client-capabilities written in?

mcp-client-capabilities is primarily written in TypeScript. It covers topics such as mcp, mcp-clients, model-context-protocol.

How do I install or use mcp-client-capabilities?

You can find installation instructions and usage details in the mcp-client-capabilities GitHub repository at github.com/apify/mcp-client-capabilities. The project has 80 stars and 10 forks, indicating an active community.

What license does mcp-client-capabilities use?

mcp-client-capabilities is released under the Apache-2.0 license, making it free to use and modify according to the license terms.

What are the best alternatives to mcp-client-capabilities?

The top alternatives to mcp-client-capabilities on Agent Skills Hub include hypertool-mcp, dify-mcp-client, remote-mcp-server. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.

How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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