CSS SOTA is an MCP server with 6 tools an agent can call, among them audit_css, check_support, dont_make_me_think. It answers at https://css-sota-mcp.lusrodri.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 20 October 2026, succeeded.
What CSS you can actually ship today, from live Baseline data and MDN browser-compat-data.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
audit_css | Scan CSS source and report every feature in it that does not meet a browser support target. Targets are either a Baseline level ("baseline-widely", "baseline-newly") or an explicit browser list ("chrome 120, safari 17.4, firefox 128"). Repo Inputs: source, target, include_passing |
check_support | Look up which browser versions support a CSS property, value, selector, at-rule or function, from MDN browser-compat-data bundled with this server (no network call). Give either a BCD key ("css.properties.anchor-name") or a property with an Inputs: bcd_key, property, value, all_browsers |
dont_make_me_think | UI/UX guidelines and a review of a page against them. mode="guidelines" returns the principles — Nielsen's 10 heuristics, Hick's and Fitts's laws, WCAG 2.2, neurodiversity-inclusive design, motion and microinteractions (including when Lotti Inputs: mode, topic, html, css, url |
get_feature | Get everything known about one CSS feature: Baseline status and dates, the browser versions it shipped in, its description, spec links, Web Platform Tests scores, usage, and MDN reference prose. Accepts a web-features id ("container-queries Inputs: feature_id, include_mdn |
search_css_features | Search CSS features on the Web Platform Dashboard (webstatus.dev) by keyword, Baseline status, and the date range in which they reached Baseline. Use this to answer questions like "which CSS features for scroll animations are Baseline yet?" Inputs: query, baseline, since, until, limit |
whats_new | List CSS features that crossed a Baseline threshold within a date range, newest first. Use this to answer "what CSS can I start using now?", to write release notes, or to catch up after time away. Defaults to the last 180 days. The date is Inputs: since, until, transition, limit |
Every block below points at https://css-sota-mcp.lusrodri.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http css-sota https://css-sota-mcp.lusrodri.workers.dev/mcp
{
"mcpServers": {
"css-sota": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://css-sota-mcp.lusrodri.workers.dev/mcp"]
}
}
}{
"mcpServers": {
"css-sota": {
"url": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}{
"servers": {
"css-sota": {
"type": "http",
"url": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}{
"context_servers": {
"css-sota": {
"url": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}{
"mcpServers": {
"css-sota": {
"serverUrl": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}{
"mcpServers": {
"css-sota": {
"url": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}name: CSS SOTA
version: 0.0.1
schema: v1
mcpServers:
- name: CSS SOTA
type: streamable-http
url: https://css-sota-mcp.lusrodri.workers.dev/mcp{
"mcpServers": {
"css-sota": {
"httpUrl": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}{
"mcpServers": {
"css-sota": {
"type": "http",
"url": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}{
"mcpServers": {
"css-sota": {
"url": "https://css-sota-mcp.lusrodri.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fcss-sota-mcp.lusrodri.workers.dev%2Fmcp&type=streamable_http&id=css-sota&name=CSS%20SOTA
It answered our last check on 20 October 2026 in 274 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
6, as returned by the server's own tools/list on 12 September 2026: audit_css, check_support, dont_make_me_think, get_feature, search_css_features, whats_new.
It answered our last check on 20 October 2026 in 274 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://css-sota-mcp.lusrodri.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.lusrodri. Endpoint host: css-sota-mcp.lusrodri.workers.dev. ARD identifier: urn:air:io.github.lusrodri:mcp:css-sota-mcp.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.