cards.dev/components
Dev.cards
Is the Dev.cards MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-13.
Free UI components with full source in HTML/CSS/JS and React: heroes, pricing, dashboards, forms.
alive probed 2026-11-14 · unchanged since 2026-11-13 · HTTP 200
- Endpoint
- https://dev.cards/mcp (streamable-http)
- Host
- dev.cards
- Protocol
- 2025-11-25
- Reports itself as
- dev-cards 1.0.0
- Capabilities
- tools
- Instructions
- 451 characters
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 676 tokens in Claude Opus 5.5, exact, measured 2026-11-13. With the Claude Code prefix mcp__…__ on each tool name: 694. The o200k_base estimate is 378. Counted again when the tool definitions change. Method.
- Website
- https://dev.cards/mcp
- Registry
- active, updated 2026-11-12 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.79×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| get_component_code | 281 | 157 | 42 % |
| search_components | 241 | 135 | 36 % |
| get_component | 154 | 86 | 23 % |
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Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.
Fixed something? Probe it now, with the same steps as the daily run. This page updates with the next daily run.