What is the key difference between Lema MCP and Radar?

Lema MCP belongs to the Cloud Platforms category with local stdio execution, while Radar belongs to the Cloud Platforms category with cloud HTTP/SSE execution.

How do I install Lema MCP or Radar in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Lema MCP and Radar free or paid?

Lema MCP operates under a Free / Open Source model (No auth required). Radar operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Lema MCP lists 5 tools with 1 views and 1 GitHub stars. Radar lists 6 tools with 4 views and 3,677 GitHub stars.

Can I use both Lema MCP and Radar together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Lema MCP vs Radar

In-depth architectural comparison of the Lema MCP and Radar MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Lema MCP

Cloud Platforms · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

Radar

Cloud Platforms · Remote HTTP/SSE

Quality: 60/100 (Good) | Auth: No auth required

Verdict Summary: Choose Lema MCP if you need specialized Cloud Platforms tools running via a local process. Choose Radar if your workspace requires Cloud Platforms integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Lema MCP when:

You need dedicated capabilities in the Cloud Platforms domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: LEMA_MCP_MODE, LEMA_PUBLIC_REPO, LEMA_API_URL, LEMA_API_TOKEN.
Primary tools included: record_decision, check_decided, search_decisions.

Explore Lema MCP Details

Choose Radar when:

You need dedicated capabilities in the Cloud Platforms domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: Built-in MCP interface for AI agents, Kubernetes topology and resource visibility, Event and log inspection.

Feature & Specification Comparison

Specification	Lema MCP Cloud Platforms	Radar skyhook-io Cloud Platforms
Summary	Cited 'why was this decided?' answers for your repo and for React, Kubernetes, and Rust.	Built-in MCP server for Radar, a modern Kubernetes visibility tool. Lets AI agents query cluster topology, resources, events, logs, and Helm/GitOps state across multiple clusters. Single binary, no agents, no cloud dependency. Apache 2.0.
Category & Scope	Cloud Platforms

Tools & Capabilities Breakdown

Lema MCP Tools (5)

record_decision

Capture a settled decision: the chosen option and the **rejected** alternatives (with why each was killed), plus rationale / refs / `supersedes`. Rejected and superseded options come back CLOSED. Append-only.

check_decided

Adjudicate one proposed direction against decisions already CLOSED → typed verdict (`ruled_out` / `not_ruled_out` / `incomplete` / `error`), off **both** your capture store **and** the repo's ADRs.

search_decisions

Natural-language query → the most relevant atomic claims (chosen / rejected / constraint / consequence) with their source ADR, under a token budget.

ask

One cited, synthesized answer over your team's **hosted** decision graph (hosted mode).

get_state_brief

Resume a hosted Run with a Project-scoped brief: primary-repository state first, then ACL-filtered context from other visible repositories.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Lema MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "lema-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "lema-mcp"
      ],
      "env": {
        "LEMA_MCP_MODE": "YOUR_LEMA_MCP_MODE_HERE",
        "LEMA_PUBLIC_REPO": "YOUR_LEMA_PUBLIC_REPO_HERE",
        "LEMA_API_URL": "YOUR_LEMA_API_URL_HERE",
        "LEMA_API_TOKEN": "YOUR_LEMA_API_TOKEN_HERE"
      }
    }
  }
}

Radar Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "skyhook-io-radar": {
      "url": "https://api.producthunt.com/widgets/embed-image/v1/top-post-badge.svg?post_id=1130618&theme=neutral&period=daily"
    }
  }
}

Frequently Asked Questions

Lema MCP is categorized under Cloud Platforms and uses a local stdio subprocess. In contrast, Radar belongs to Cloud Platforms using remote streaming HTTP/SSE transport. Select Lema MCP when you need capabilities focused on cloud platforms and Radar when you require tools for cloud platforms.