MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

Emblematic

Real websites' design specs: exact colors, fonts, type scale and a DESIGN.md. Free, no auth.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
392 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
7

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked . Not enough checks yet
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 392 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name emblematic.

  • Pass
    Lists tools

    tools/list returned 7 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 392 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 392 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    20 of 23 parameters have a description (87%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-12T16:43:41.019383Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Emblematic

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http emblematic https://emblematic.dev/mcp

Capabilities

Tools 7

browse_by

Use this to explore what the index contains: without `value` it lists the values of a facet with counts (e.g. every font family, every style tag); with `value` it lists the sites that have it. Facets: font, color (hue bucket or "neutral"), style (derived tags), stack (framework/CMS/host), scheme, hero (hero layout), accent_strategy. Not for multi-criteria queries (use search_designs).

Discovered
compose_brief

Use this when the user wants a direction that mixes references ("Linear's colors with Stripe's type"), or a ready-to-save brief from one site. Returns a markdown brief with exact values (role colors and site tokens, font stacks, type styles, radii, spacing, shadows, motion), caveats and source links. Deterministic: values are copied from the specs, nothing is invented. By default the 1st site gives color, the 2nd type, the 3rd layout; override with color_from/type_from/layout_from. Save the result to disk before implementing. Not for a single site's raw values (use get_design or get_design_md).

Discovered
find_similar

Use this when the user likes one site and wants alternatives or neighbours: "more like Linear", "sites with Stripe's typography". Ranks indexed sites by an explainable distance on palette, type or layout (or the mean, "overall") and says why each is close. Not for free-text search (use search_designs).

Discovered
get_design

Use this when you need the actual design values of one indexed site to build or restyle UI. Default returns the compact card (role colors with the site's own CSS variable names, fonts, type sizes, radius, container, caveats, links). Request more with `sections` (color, type, space, shape, depth, layout, motion, components, sections, stack, provenance) or "full" for the raw spec.json (large: ~15–20 KB). Not for search (use search_designs) or for a file to save in the project (use get_design_md).

Discovered
get_design_md

Use this when you will implement from a site's design: returns the file to save into the project verbatim. format "design.md" (default) is a DESIGN.md (YAML tokens + prose, google/design.md format); "tokens.css" is CSS custom properties; "tailwind" is a Tailwind v4 @theme block. Save the text to disk unchanged and work from the saved file. Not for answering questions about a site (use get_site or get_design).

Discovered
get_site

Use this to answer "what font/colors/framework does <site> use?" for one site. Returns brand name, fonts with roles and weights, role colors, hues, detected stack (framework, CMS, hosting) and capture date. If the site is not indexed it says so (found: false) with the closest indexed sites. Not for building UI from the spec (use get_design).

Discovered
search_designs

Use this when the user wants design references: "dark dev-tool sites", "sites using Söhne", "a warm serif editorial look", "something with #5E6AD2". Matches brand, font, style tags, hue/hex, stack and description across the Emblematic index and returns small cards (scheme, key colors, fonts, radius, one-line summary). All filters are optional and combine with AND. Not for fetching one known site (use get_design) or listing facet values (use browse_by).

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 90 days.
CheckedResultResponseTools
Connected392 ms7