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

Read-only probes

MCP server · Data access / search

Teamup Calendar MCP by usefulapi

Read and search Teamup Calendar events and sub-calendars; create, update, delete and undo events.

Checks passed
13 / 22

1 failed · 8 not measured

Median response
169 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
15

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Outdated check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?
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 169 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name teamup-calendar-mcp.

  • Pass
    Lists tools

    tools/list returned 15 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 169 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 169 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.

  • Fail
    Parameters documented

    55 of 69 parameters have a description (80%). 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.

  • Pass
    Source repo linked

    A 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 2026-11-10T23:34:03.406413Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using Teamup Calendar MCP by usefulapi

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 teamup-calendar-mcp-by-usefulapi https://teamup-calendar.usefulapi.io/mcp

Capabilities

Tools 15

teamup_create_event

WRITE: create an event. Needs a calendar key with add or modify permission. Give at least subcalendar_ids, start and end. Not idempotent: a repeated call creates a second event. The reply holds the new event and an undo_id; teamup_undo_event_action removes the event again within one hour. POST /{calendarKey}/events.

Discovered
teamup_create_subcalendar

WRITE: create a sub-calendar. Needs a calendar key with admin permission, and the plan may limit how many exist. Not idempotent: a repeated call creates a second one. POST /{calendarKey}/subcalendars.

Discovered
teamup_delete_event

WRITE, DESTRUCTIVE: delete an event, or for a recurring event the chosen occurrences. Needs modify permission. Not retried. The reply holds an undo_id; teamup_undo_event_action restores the event within one hour, after that the deletion is permanent. For one occurrence use the occurrence id (123-rid-<unix start>) and redit single (the default); redit all deletes the whole series. DELETE /{calendarKey}/events/{id}.

Discovered
teamup_get_calendar

The calendar this connection points at: title, timezone and date settings, custom event fields, sub-calendars, the permission of the calendar key in use and the plan's features. Call this first to learn the sub-calendar ids and the timezone. The calendar key itself is never returned. GET /{calendarKey}/configuration.

Discovered
teamup_get_event

One event by id: title, times, sub-calendars, location, who, notes (markdown), recurrence rule, custom fields, signups, comments, attachments (metadata), version, change history and reminders. Use the occurrence id (123-rid-<unix start>) for one occurrence of a recurring event. GET /{calendarKey}/events/{id}.

Discovered
teamup_get_subcalendar

One sub-calendar by id: name, color, overlap rule, active state and which links may use it. GET /{calendarKey}/subcalendars/{id}.

Discovered
teamup_list_access_keys

List the calendar's access keys (sharing links and user accesses) with name, role, active state and per-sub-calendar permission. Needs a key with admin permission. The secret key values are never returned (they are secrets); use the id and name to tell links apart. GET /{calendarKey}/keys.

Discovered
teamup_list_changed_events

Events created, changed or deleted since a Unix timestamp (at most 30 days back), for syncing. A recurring event comes back once, as its series, not as occurrences. Deleted events carry delete_dt. Pass the reply's timestamp as since_timestamp next time so nothing is missed. GET /{calendarKey}/events?modifiedSince=.

Discovered
teamup_list_event_signups

The people signed up for an event (name, email, id). Signups must be enabled on the event. GET /{calendarKey}/events/{id}/signups.

Discovered
teamup_list_events

List the events in a date range, optionally only on some sub-calendars. Recurring events are expanded: every occurrence in the range is returned with its own id (series id + -rid- + start). Notes come as markdown. Times use the calendar's timezone unless tz is set. GET /{calendarKey}/events.

Discovered
teamup_list_subcalendars

List the sub-calendars (the colored lanes that events belong to, such as people, rooms or resources). A key with admin permission also sees inactive ones. GET /{calendarKey}/subcalendars.

Discovered
teamup_search_events

Search events by keyword (2-100 characters) within a date range (default: today only, so always pass the range you mean). Recurring events are expanded. Paged with limit and offset. GET /{calendarKey}/events?query=.

Discovered
teamup_undo_event_action

WRITE: undo a recent event creation, update or deletion with the undo_id from that call. Works for one hour only and is refused if someone else changed the event since. PUT /{calendarKey}/events/undo/{undo_id}.

Discovered
teamup_update_event

WRITE: change fields of an event; fields you leave out keep their value (the event is read first and sent back with its version, so a concurrent edit is refused instead of overwritten; an event without a version is not changed). Needs modify permission. For a recurring event pass redit; use the occurrence id (123-rid-<unix start>) with single or future. Attachments are not touched. The reply holds the event and an undo_id for one hour (teamup_undo_event_action). PUT /{calendarKey}/events/{id}.

Discovered
teamup_update_subcalendar

WRITE: change a sub-calendar's name, color, overlap rule or active state; fields you leave out keep their value. Needs admin permission. Making a sub-calendar inactive hides it from users without admin rights. PATCH /{calendarKey}/subcalendars/{id}.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected169 ms15