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Echo UI

R0· no sign-in

A tactile React component library, and the design system that keeps your AI agent on-brand.

v0.3.5 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality81new
Trust90of 100
Uptime, 30 days50%
Latency p50407 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "echo-ui": {
      "type": "http",
      "url": "https://mcp.echo-ui.com/mcp"
    }
  }
}
claude mcp add --transport http echo-ui https://mcp.echo-ui.com/mcp
[mcp_servers.echo-ui]
url = "https://mcp.echo-ui.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "echo-ui": {
      "type": "remote",
      "url": "https://mcp.echo-ui.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "echo-ui": {
      "type": "http",
      "url": "https://mcp.echo-ui.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=echo-ui&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLmVjaG8tdWkuY29tL21jcCJ9"
}
{
  "servers": {
    "echo-ui": {
      "type": "http",
      "url": "https://mcp.echo-ui.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "echo-ui": {
      "httpUrl": "https://mcp.echo-ui.com/mcp"
    }
  }
}
extensions:
  "echo-ui":
    enabled: true
    name: "echo-ui"
    type: streamable_http
    uri: "https://mcp.echo-ui.com/mcp"
    timeout: 300

Quality 81 / 100new

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene86 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations10 of 10 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: search_components (idempotentHint); get_component (idempotentHint); get_tokens (idempotentHint); …
  • pass
    tools.token_costabout 1,842 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 0 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

10 tools, about 1,842 tokens to load them all · tool set fa2d7c81b38f · checked 2026-11-07 18:35 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 90 / 100

provenance85
liveness80
freshness100
hygiene100

+repository +dns-namespace +website +reachable +uptime-50% +updated-1d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mcp.echo-ui.com/mcp streamable-httpnoneyes50%407 ms2025-11-252026-11-07

Tools (10)

check_coderead-onlyEcho's check on a piece of code you've written or are about to write: colours, spacing, radii, shadows and timing off Echo's scales, raw elements where Echo has the component, props a component doesn't take, controls without a name, markup a keyboard or screen reader can't use, restyling Echo from outside, and the screen rules one file can show. The same rules as `npx echo-ui-cli check`, which runs on a whole project with its own theme; this one uses the default theme. Each finding says the Echo way to fix it.
check_styleread-onlyWhether a style.json is one Echo can apply, as `npx echo-ui-cli style check` says it: what stops it, the device it makes (light or dark), what the theme corrects for AA contrast, what the slop police stops (with the question for the builder) or the builder kept, and the decisions it leaves open.
fit_stylesread-onlyStyle Fit's shortlist: Echo's styles, and the builder's own passed in, measured against where a product sits on the seven axes (warmth, volume, density, formality, era, craft, ornament) and put in order: a style that misses a locked axis last, then least past tolerance first, then nearest. The same arithmetic as `npx echo-ui-cli style fit`. It orders; it doesn't pick.
get_accessibilityread-onlyThe accessibility rules a consumer of Echo can still get wrong — names on controls, form errors, announcements, focus and target size — and, with a name, what that component's accessibility was actually tested against. Echo guarantees WCAG 2.2 AA; this is the part the guarantee cannot cover for you. It's for before building a form, a dialog or anything icon-only.
get_componentread-onlyThe full record for one component: description, install command, usage (imports + smallest working snippet), composition (part tree), examples, accessibility, motion & sound, prop table and anti-patterns. It's for before writing code that uses the component: the anti-patterns are the part a model gets wrong from priors.
get_examplesread-onlyJust the usage examples for one component, without the rest of its record. For when the component is already chosen and only its calling convention is needed.
get_tokensread-onlyThe token families: Layer-3 semantic colour roles (--echo-*), sound names, motion's whole vocabulary — the motion tokens, the spring presets, the morph feels and the CSS duration and ease steps — and the shadow recipes. Any name a component's record lists under Motion is here. Echo components are styled and moved only through these: a hex, a duration or a shadow written by hand, or a token name that isn't here, is off Echo's system.
list_stylesread-onlyEcho's own styles, the looks Echo publishes, each with its one line and its fingerprint on the seven axes styles are placed on; or, with a name, one of them in full: its settings, rules, refusals, fonts, decisions and the slop police's word. The builder's own styles aren't here: they're in their library or the conversation, and fit_styles weighs them with Echo's.
search_componentsread-onlyFind the Echo UI item for a job ("a settings toggle", "confirm a delete") or by name. Leads with the best fit, or says plainly that Echo has nothing for the job yet, then lists every match with its install command. The cheapest way to find out what exists, and the first call before writing Echo code.
wear_styleread-onlyWhat a style gives a project: a link that makes the whole Echo site wear its colours, the commands that put it in a project, and, for a project without a terminal, its theme CSS and a DESIGN.md with its rules. One of Echo's styles by name, or the builder's own style.json. A style the slop police stops isn't worn; the answer says what to ask the builder.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "com.echo-ui/mcp",
  "icons": [
    {
      "src": "https://echo-ui.com/icon.svg",
      "sizes": [
        "any"
      ],
      "mimeType": "image/svg+xml"
    }
  ],
  "title": "Echo UI",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp.echo-ui.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.3.5",
  "repository": {
    "id": "1425879538",
    "url": "https://github.com/NourMtir0722/echo-ui",
    "source": "github",
    "subfolder": "mcp"
  },
  "websiteUrl": "https://echo-ui.com/docs/mcp",
  "description": "A tactile React component library, and the design system that keeps your AI agent on-brand."
}