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

Read-only probes

MCP server · Code & DevOps

Otter Waiver MCP by usefulapi

By usefulapi.io Verified namespace

Read waivers, signed participants and check-ins in Otter Waiver.

WebsiteSource code
Connect to Otter Waiver MCP by usefulapi
Checks passed
14 / 22

0 failed · 8 not measured

Median response
71 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
5

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Outdated check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?
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 71 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name otter-waiver-mcp.

  • Pass
    Lists tools

    tools/list returned 5 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 71 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 71 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

    6 of 6 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.

  • 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 2026-11-10T23:34:38.455903Z, within 180 days.

  • Not measured
    Open-source licence

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

Start using Otter Waiver 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 otter-waiver-mcp-by-usefulapi https://otter-waiver.usefulapi.io/mcp

Capabilities

Tools 5

otterwaiver_get_participant

Get one participant (adult or minor) by id: signer data, waiver id, timestamps, document and certificate links. Get the id from the participant lists or from a waiver. API: GET /participants/{id}.

Discovered
otterwaiver_get_waiver

Get one waiver with its full text, settings, additional fields and signed participants. Get the id from otterwaiver_list_waivers. API: GET /waivers/{id}.

Discovered
otterwaiver_list_latest_checkins

List the 50 most recent participant check-ins, with the same fields as otterwaiver_list_latest_participants (the checkedIn timestamp is set). API: GET /participants/latest/checkins.

Discovered
otterwaiver_list_latest_participants

List the 50 most recent participants who signed a waiver: signer contact data, emergency contact, answers to extra questions, timestamps and document links. The data is personal data of the signers. API: GET /participants/latest.

Discovered
otterwaiver_list_waivers

List the waivers of the account (title, event, status draft/active/inactive, activities, response counts). Page numbers are required by the API; the defaults are page 1 with 20 records. Filter by event name (waiver folder title) or waiver title. API: GET /waivers.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected71 ms5

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