What is the main functional difference between Magic MCP and US Business Entity Check?

Magic MCP is categorized under Developer Tools and uses a local stdio subprocess. US Business Entity Check belongs to Developer Tools and uses a remote HTTP/SSE transport. Pick Magic MCP for developer tools work and US Business Entity Check for developer tools.

How do I install Magic MCP or US Business Entity Check in Claude Desktop, Cursor, or Windsurf?

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.

Are Magic MCP and US Business Entity Check free to use, or do they require API keys?

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

Can I run both Magic MCP and US Business Entity Check at the same time in my AI client?

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

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Magic MCP has a quality signal of 53/100 (Good) with 16 views, 1 installs and 5,997 GitHub stars. US Business Entity Check has 40/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.

Magic MCP vs US Business Entity Ch…

Magic MCP vs US Business Entity Ch… | AllMCPs

Feature & specification comparison

Rows where the two servers differ are marked.

Spec	Magic MCP	U US Business Entity Check
Category	Developer Tools	Developer Tools
Quality signal	53/100 · Good	40/100 · Fair
Install command	Confirmed	Confirmed
Transport	Local subprocess (stdio)	Remote HTTP/SSE
Auth	API key required	Not declared
Pricing	Paid service	Not declared
Required env vars	`TWENTY_FIRST_API_KEYAPI_KEY_21ST`	None listed
Verified owner	Community listing	Community listing
GitHub stars	5,997	0
Directory activity	16 views 1 installs 0 upvotes	0 views 0 installs 0 upvotes
Tools	Not listed	Not listed
Full listing	View Magic MCP	View US Business Entity Check

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.

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"
      }
    }
  }
}

US Business Entity Check

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "us-business-entity-check": {
      "url": "https://mcp.apify.com/?tools=plainfold/sam-gov-contract-opportunities,plainfold/business-entity-check,plainfold/company-hiring-signals,plainfold/sec-company-financials"
    }
  }
}

Magic MCP vs US Business Entity Check

Which MCP server should you choose?

Choose Magic MCP when

U
Choose US Business Entity Check when

Feature & specification comparison

Tools & capabilities

Magic MCP tools

US Business Entity Check tools

Ready-to-paste client configs

Magic MCP

US Business Entity Check

Frequently asked questions

Choose Magic MCP when

UChoose US Business Entity Check when

Magic MCP tools

US Business Entity Check tools

Magic MCP

US Business Entity Check

Frequently asked questions

What is the main functional difference between Magic MCP and US Business Entity Check?

How do I install Magic MCP or US Business Entity Check in Claude Desktop, Cursor, or Windsurf?

Are Magic MCP and US Business Entity Check free to use, or do they require API keys?

Can I run both Magic MCP and US Business Entity Check at the same time in my AI client?

Which MCP server has higher directory engagement and quality ratings?

Popular comparisons with Magic MCP

Popular comparisons with US Business Entity Check

U
Choose US Business Entity Check when