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

Read-only probes

MCP server · Other

LucyESL — English teaching jobs in Korea

By lucyesl.com Verified namespace

English-teaching jobs in South Korea: salary, disclosure and by-region stats. Read-only, no key.

Website
Connect to LucyESL — English teaching jobs in Korea
Checks passed
13 / 22

1 failed · 8 not measured

Median response
861 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

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
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 861 ms.

  • Pass
    Valid handshake

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

  • 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 861 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 861 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

    18 of 18 parameters have a description (100%). 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 2026-11-01T21:08:16.03833Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using LucyESL — English teaching jobs in Korea

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 lucyesl-english-teaching-jobs-in-korea https://lucyesl.com/mcp

Capabilities

Tools 7

disclosure_stats

How many live Korean ESL job adverts state the salary, hours, severance, pension, insurance, airfare, vacation and split shifts: for each, the number that state it, out of how many, and the percentage. CC BY 4.0.

Discovered
fetch

Fetch one live LucyESL job listing by its id as a document with its title, its URL and a plain-text body giving the employer, pay, hours, housing, visas, benefits, dates and the facts the advert left unstated. An id that has closed or expired returns an error naming it.

Discovered
get_job

Get one live LucyESL job listing by its numeric id as a structured record: employer and employer type, region, pay in KRW, teaching and on-site hours, housing, visas, benefits, contract length, start date, dates, and the facts the advert left unstated (null means not stated). An id that has closed or expired returns an error naming it.

Discovered
market_stats

Live English-teaching job adverts in South Korea counted by region: how many in each, direct hire against recruiters, how many state total on-site hours, and the median advertised salary where the sample allows. Counts of adverts, not of employers. CC BY 4.0.

Discovered
salary_stats

English-teacher salary statistics for South Korea computed from the live listings: median, quartiles, by region, by employer type, effective pay per teaching hour, disclosure rates, housing. Each median comes with the number of adverts behind it. CC BY 4.0.

Discovered
search

Search live English-teaching jobs in South Korea on LucyESL with a plain-language query. Words for a region, student age, housing, schedule, visa or direct hire are read as filters. Returns up to 20 matches, each an id, a title with the employer, and the listing URL.

Discovered
search_jobs

Filter the live LucyESL board of English-teaching jobs in South Korea: region, student age, housing, visa, schedule, contract, setting, direct hire, minimum salary, free text. Returns the number that match and a page of structured records; pay in KRW per month unless stated otherwise; null means the advert did not say.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected861 ms7

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