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Can I use API: Check browser support

Find the closest web feature by name and see its global support and support across eight major desktop and mobile browsers. Current browser support follows the versions labeled current by Can I use.

caniuse.com (opens in a new tab)Version 1ReadNo sign-inVerified Nov 2, 2026

Unofficial. Not affiliated with or endorsed by Can I use.

Inputs

Values from the run on Oct 31, 2026, shown under Output.

Feature, requiredfeature

Name of the web feature to check, for example CSS grid.

CSS grid

Output

From a run on Oct 31, 2026, shortened for this page.
{  "link": "https://caniuse.com/css-grid",  "browsers": [    {      "notes": "See also support for subgrids At first full support: There are some bugs with overflow (1356820, 1348857, 1350925)",      "browser": "Chrome",      "current_support": "supported",      "first_fully_supported_version": "57"    },    {      "notes": "See also support for subgrids",      "browser": "Edge",      "current_support": "supported",      "first_fully_supported_version": "16"    },    {      "notes": "See also support for subgrids At first full support: There are some bugs with overflow (1356820, 1348857, 1350925)",      "browser": "Firefox",      "current_support": "supported",      "first_fully_supported_version": "52"    }  ],  "description": "Method of using a grid concept to lay out content, providing a mechanism for authors to divide available space for layout into columns and rows using a set of predictable sizing behaviors. Includes support for all grid-* properties and the fr unit.",  "feature_key": "css-grid",  "feature_title": "CSS Grid Layout (level 1)",  "global_full_support_percent": 96.65,  "global_full_and_partial_support_percent": 96.89}
Price
1 credit per completed run (1¢ with pay as you go); failed runs are free.
Method
caniuse.com/check_browser_support
Returns
feature title, description, global support percentages, link, per-browser first full support version, current support and notes

Use it from your agent

Give your agent this line. It reads SKILL.md, gets a Fous API key and connects the Fous MCP server. Its run then takes the method caniuse.com/check_browser_support with the inputs above.

Ask your agent

  • Is CSS container queries safe to use in production yet? What's the global support percentage?
  • Which Safari version first fully supported the :has() selector, according to caniuse?
  • Check browser support for WebGPU across Chrome, Firefox, Safari and mobile browsers
  • Does Firefox support the View Transitions API in its current version? Include any notes.
  • Look up subgrid on caniuse.com and tell me the first version with full support in each major browser

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