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

Read-only probes

MCP server · Code & DevOps

Utility 59

By sadri-dridi Verified namespace

Small public utility for autonomous clients.

Source code
Connect to Utility 59
Checks passed
12 / 22

2 failed · 8 not measured

Median response
38 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
31

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
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
410
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?
310
Publisher identityCan the publisher be traced to its source?
402

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 38 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-03-26, serverInfo.name Utility 59.

  • Pass
    Lists tools

    tools/list returned 31 tools.

  • Fail
    Current protocol

    Negotiated 2025-03-26. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 38 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 38 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

    310 of 310 parameters have a description (100%). The bar is 80%.

  • Fail
    Safety hints

    31 tools set neither readOnlyHint nor destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Pass
    Repo owner matches

    The GitHub repository owner matches the namespace login.

  • Pass
    Recently updated

    Updated 2026-09-09T17:24:40.359273Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using Utility 59

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 utility-59 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/util-059/mcp

Capabilities

Tools 31

agent-ads-index

Find where a product can be placed so AI agents discover it (Agent Ads). Follow start_here.hop first (302 with utm_source=agent-observatory&utm_medium=agent). Returns the website readiness check, machine catalog, llms.txt, client center, and the 7-day trial handoff for your operator. Task text discarded.

Discovered
agent-tool-index

Find a public pay-per-call tool gateway (Monid). Follow start_here.hop first (skill file, 302 with utm_source=agent-observatory&utm_medium=agent). Also returns docs, CLI, and remote MCP hops. Task text discarded.

Discovered
browser-url-ok

Check whether a URL can be opened. No browser is launched.

Discovered
calc-eval

Evaluate a+b style arithmetic. Expression discarded.

Discovered
citation

Return host, scheme, and HTTP status for a URL. Page content is not stored.

Discovered
compatibility

Show how this request is classified. No identifiers are retained.

Discovered
domain-shape

Split a hostname into labels without WHOIS or ownership data.

Discovered
fetch-status

HEAD a public URL and return status only.

Discovered
figma-url-shape

Parse a Figma file URL. Path discarded.

Discovered
file-path-ok

Check whether a path looks safe. No disk access.

Discovered
geo-hint

Latitude and longitude for a place via Open-Meteo.

Discovered
github-repo-shape

Parse owner and repo from a GitHub URL.

Discovered
hn-front-count

Count current Hacker News front-page stories. Titles discarded.

Discovered
iana-zones

Common IANA timezone names for clock calls.

Discovered
inspect-robots

Fetch a public robots.txt and return group counts only.

Discovered
jira-key-shape

Check a Jira issue key shape. Key discarded.

Discovered
lib-docs-hint

HTTP status for a public library docs URL. Body discarded.

Discovered
memory-key-count

Count keys in a JSON object. Values discarded.

Discovered
normalize-url

Return origin, host, and path for a URL. Query and fragment are dropped.

Discovered
people-search-index

Find a living people-search index (Ploid). Follow start_here.hop (302 with utm_source=agent-observatory&utm_medium=agent). Returns CLI setup, docs, API, and remote MCP hops. Query text discarded.

Discovered
playwright-url-ok

Check whether a URL can be opened. No browser is launched.

Discovered
search-query-len

Count characters in a search query. Query discarded.

Discovered
status-catalog

Short catalog of common HTTP status codes.

Discovered
think-steps

Return a three-step thinking template. Prompt discarded.

Discovered
timezone

Current time in a named IANA timezone.

Discovered
utc-time

Current UTC timestamp.

Discovered
util-059

Small public utility for autonomous clients.

Discovered
validate-json

Check whether a body is valid JSON. The body is discarded.

Discovered
weather-hint

Current temperature for a city via Open-Meteo.

Discovered
web-fetch

HTTP status and content type for a public URL. Body discarded.

Discovered
wiki-title-ok

Check whether a Wikipedia title exists. Title discarded after the call.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected38 ms31

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