83trust / 100

21st.dev

by 21st.dev in Developer tools

MCP serverPassing, checked 10 h ago

Find UI components and themes, retrieve code, and generate with hosted 21st AI when enabled.

https://21st.dev/api/mcp
Tools
-
behind sign-in or payment
Uptime
100%
last 30 days
Response time
84 ms
145 ms slowest 5%
Last check
Passed
10 h ago, next any minute now

Scan it nowHow to connect

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to connect

Add it to any MCP client that supports remote servers. It asks for sign-in, an API key or payment.

{
  "mcpServers": {
    "21st-dev": {
      "type": "http",
      "url": "https://21st.dev/api/mcp"
    }
  }
}

The tool list is behind sign-in or payment, so we can't show it.

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTime
10 h agoPassed40182 ms
21 h agoPassed401131 ms
31 h agoPassed40169 ms
42 h agoPassed401130 ms
2 days agoPassed401101 ms
Show 10 older checks
3 days agoPassed401104 ms
3 days agoPassed40197 ms
3 days agoPassed40184 ms
4 days agoPassed40191 ms
4 days agoPassed401123 ms
5 days agoPassed401145 ms
5 days agoPassed40167 ms
5 days agoPassed40164 ms
6 days agoPassed401137 ms
6 days agoPassed401150 ms