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

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

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

US Business Entity Check 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.

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

Yes. MCP clients support multiple servers: add us-business-entity-check and 21st-dev-magic-mcp 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, US Business Entity Check has a quality signal of 40/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Magic MCP has 53/100 (Good) with 16 views, 1 installs and 5,997 GitHub stars.

US Business Entity Ch… vs Magic MCP

US Business Entity Ch… vs Magic MCP | AllMCPs

Feature & specification comparison

Rows where the two servers differ are marked.

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

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.

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

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 vs Magic MCP

Which MCP server should you choose?

U
Choose US Business Entity Check when

Choose Magic MCP when

Feature & specification comparison

Tools & capabilities

US Business Entity Check tools

Magic MCP tools

Ready-to-paste client configs

US Business Entity Check

Magic MCP

Frequently asked questions

UChoose US Business Entity Check when

Choose Magic MCP when

US Business Entity Check tools

Magic MCP tools

US Business Entity Check

Magic MCP

Frequently asked questions

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

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

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

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

Which MCP server has higher directory engagement and quality ratings?

Popular comparisons with US Business Entity Check

Popular comparisons with Magic MCP

U
Choose US Business Entity Check when