Runno vs Magic MCP

A side-by-side look at the Runno and Magic MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Runno logoRunnoCode Execution · Local subprocess (stdio)Sandboxed runtime for programming languages and WASI binaries. Works in the browser, on your server, or via MCP.48FairAuth: not declaredMagic MCP logoMagic MCPArchitecture & Design · Local subprocess (stdio)Create crafted UI components inspired by the best 21st.dev design engineers.53GoodAuth: api key required

Verdict: choose Runno for code execution work as a local process; choose Magic MCP for architecture & design as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Runno logoChoose Runno when

  • You need dedicated capabilities in the Code Execution domain.
  • You prefer a local stdio subprocess transport.
Explore Runno

Magic MCP logoChoose Magic MCP when

  • You need dedicated capabilities in the Architecture & Design domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: TWENTY_FIRST_API_KEY, API_KEY_21ST.
Explore Magic MCP

Feature & specification comparison

Rows where the two servers differ are marked.

SpecRunno logoRunnoMagic MCP logoMagic MCP
CategoryCode ExecutionArchitecture & Design
Quality signal48/100 · Fair53/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredAPI key required
PricingNot declaredPaid service
Required env varsNone listedTWENTY_FIRST_API_KEYAPI_KEY_21ST
Verified ownerCommunity listingCommunity listing
GitHub stars7756,236
Directory activity 1 views 0 installs 0 upvotes 16 views 1 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Runno tools

No tool names declared yet. Check the project README from the listing page.

Magic MCP tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Runno

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "runno": {
      "command": "npx",
      "args": [
        "@runno/mcp"
      ]
    }
  }
}

Magic MCP

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "21st-dev-magic-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@21st-dev/cli@latest"
      ],
      "env": {
        "TWENTY_FIRST_API_KEY": "YOUR_TWENTY_FIRST_API_KEY_HERE",
        "API_KEY_21ST": "YOUR_API_KEY_21ST_HERE"
      }
    }
  }
}

Frequently asked questions

Runno is categorized under Code Execution and uses a local stdio subprocess. Magic MCP belongs to Architecture & Design and uses a local stdio subprocess. Pick Runno for code execution work and Magic MCP for architecture & design.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Runno has no declared pricing — check the project's own site. Magic MCP is listed as a paid service. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add runno and 21st-dev-magic-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Runno has a quality signal of 48/100 (Fair) with 1 views, 0 installs and 775 GitHub stars. Magic MCP has 53/100 (Good) with 16 views, 1 installs and 6,236 GitHub stars.