21st.dev
Find UI components and themes, retrieve code, and generate with hosted 21st AI when enabled.
likely compatible
Declares API key header (x-api-key); use Copilot Studio 'API key' → Header.
Rule R2b · what this means · Not tested in Copilot Studio.
| Registry name | dev.21st/mcp |
| Endpoint used for verdict | https://21st.dev/api/mcp |
| Transports | streamable-http |
| Auth (Copilot Studio setting) | API key (header) |
| Last endpoint check | 2026-10-20T18:13:01Z · HTTP 401 |
| Website | https://21st.dev/mcp |
| Version | 1.0.1 |
| Registry updated | 2026-09-09 |
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Is this wrong or out of date? Email us. Data built 2026-10-20.