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magic-mcp
It's like v0, but in your Cursor / Claude Code / Windsurf: search 10,000+ React/Tailwind components, generate new UI with AI, and publish your own — right from your editor. Magic MCP is now the 21st MCP; this package keeps old configs working. Setup: 21st.dev/mcp
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M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.
// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
🔐
You'll be asked for 2 credentials: API_KEY, TWENTY_FIRST_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// required environment variables
This server reads these from
process.env. You'll be asked to provide them before it can run.🔐 secret
API_KEY— The API key is accepted in all the historical forms: positional ="...", --API_KEY=..., /API_KEY:..., -API_KEY ..., or the TWENTY_FIRST_API_KEY / API_KEY_21ST environment variables.config
API_KEY_21ST— The API key is accepted in all the historical forms: positional API_KEY="...", --API_KEY=..., /API_KEY:..., -API_KEY ..., or the TWENTY_FIRST_API_KEY / environment variables.config
MCP_URL_21ST🔐 secret
TWENTY_FIRST_API_KEY— The API key is accepted in all the historical forms: positional API_KEY="...", --API_KEY=..., /API_KEY:..., -API_KEY ..., or the / API_KEY_21ST environment variables.// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[](https://m8ven.ai/mcp/21st-dev-magic-mcp-g5qsel)commit: b3ea2b7e0ff09e2d11dffd1e4fd0ef7f05077b8d
code hash: 0c784fad4a2f4680380b22857c7c189f449338da317f8788346054adc2caf1b8
verified: 7/25/2026, 8:40:48 AM