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 · Data access / search

Jan Linketscher

Profile and essays of Jan Linketscher (i22, Bonn), full-text search, and booking a call.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
62 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
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 62 ms.

  • Pass
    Valid handshake

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

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

  • Not measured
    Consistent (p95)

    95th percentile 62 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

    15 of 16 parameters have a description (94%). 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 2026-10-10T12:18:41.906045Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Jan Linketscher

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 jan-linketscher https://janlinketscher.com/api/mcp

Capabilities

Tools 7

book_meeting

Book a call with Jan Linketscher on behalf of your user. The start must be a slot returned by get_availability. If your client supports elicitation (form mode, MCP 2026-07-28), the server itself asks the user to confirm time, name and email – name and email are then prefilled from your arguments and can be corrected by the user. Otherwise: show the user meeting type, date and time (with time zone), name and email, get their explicit approval, then pass name, email and confirmed: true. Use the user's real name and email; never invent them. Cal.com sends the confirmation with a calendar invite and links to reschedule or cancel to that email address.

Discovered
get_availability

Free time slots for a call with Jan Linketscher. meeting_type: "kennenlernen" (Kennenlernen, 30 min), "sparring" (Sparring, 60 min). Optional date range (YYYY-MM-DD, default: the next 14 days, at most 90 days ahead). Times are ISO 8601 with offset; the text answer lists them in Europe/Berlin.

Discovered
get_essay

Full text of one essay as Markdown (with front matter). Use the slug from list_essays or search.

Discovered
get_profile

Who Jan Linketscher is: managing director and shareholder of the digital agency i22 (Bonn), his background, how his texts are written, and how to contact him. Content is in German.

Discovered
list_essays

List the essays, newest first: title, date, one-sentence summary, topics, URL and slug. Optionally filter by topic slug. Also returns the available topics.

Discovered
list_meeting_types

The kinds of calls that can be booked with Jan Linketscher ("kennenlernen" (Kennenlernen, 30 min), "sparring" (Sparring, 60 min)), with duration, purpose and a booking link for humans.

Discovered
search

Full-text search across all essays and pages (about, context). Returns the best matches with title, URL and a short snippet. German queries work best.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected62 ms7