WaiverFile MCP by usefulapi

io.usefulapiPublished by usefulapi.ioOfficial publisherv1.15.4Updated Nov 7, 2026

Read WaiverFile waivers, events, forms and SMS opt-ins; create and update events, invite managers.

The publisher's own server: Ably MCP by usefulapi

VerifiedStreamable HTTPWeb executableProductivity & WorkflowBusiness & Commerce

Overview

AI-generated overview

Reads WaiverFile waivers, events, forms and SMS opt-ins, and lets an assistant create or update events and invite event managers.

What you can do
  • Inspect the site, its waiver forms and event categories
  • List events by date range or upcoming, with headcount and spots remaining
  • Retrieve, search and count signed waivers, including by signer details or external reference ids
  • Export flat waiver rows for a date range, with optional custom form columns
  • List SMS marketing subscribers who opted in or out
  • Create and update events, create categories, and email manager invitations
When to use it
Useful when you manage a WaiverFile account and want to ask questions in plain language about who signed waivers, how many were signed in a period, or which events are coming up, and to set up events without opening the WaiverFile dashboard.
Requirements
Remote MCP endpoint reached over streamable HTTP; no local package. Sign-in is via OAuth, and on first connect you paste your WaiverFile API key and Site ID from the WaiverFile settings. No Authorization header or API key goes in the client config. A paid plan is needed beyond the free monthly call allowance.
Before you install
Tools return personal data of signers and participants, including names, emails, phones and dates of birth, and SMS subscriber phone numbers; handle and retain it accordingly. Write tools create or replace events, create categories and send invitation emails to addresses you supply. Update replaces the whole event, so omitted fields are reset. The free tier is capped at 50 calls per month, and upgrade tools return payment links for paid plans.

Installation

In SourceWeft

  1. Open WaiverFile MCP by usefulapi in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.usefulapi%2Fwaiverfile/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "waiverfile-by-usefulapi": {
      "type": "http",
      "url": "https://waiverfile.usefulapi.io/mcp"
    }
  }
}

README

WaiverFile MCP by usefulapi

Read WaiverFile waivers, events, forms and SMS opt-ins; create and update events, invite managers.

Live endpoint: https://waiverfile.usefulapi.io/mcp · Homepage: https://usefulapi.io/waiverfile

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://waiverfile.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http waiverfile https://waiverfile.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
json
{  "mcpServers": {    "waiverfile": {      "url": "https://waiverfile.usefulapi.io/mcp"    }  }}

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your WaiverFile credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/waiverfile/

On first connect you'll paste your WaiverFile API key and Site ID (WaiverFile → Settings → API → API keys; click Show to reveal the key, the Site ID is shown below it).

Tools

ToolTypeWhat it does
waiverfile_get_sitereadGet site details
waiverfile_list_waiver_formsreadList waiver forms
waiverfile_list_eventsreadList events by date range
waiverfile_list_upcoming_eventsreadList upcoming events
waiverfile_list_event_categoriesreadList event categories
waiverfile_get_event_waiversreadGet waivers for an event
waiverfile_search_waiversreadSearch waivers
waiverfile_get_waiverreadGet a waiver
waiverfile_find_waivers_by_referencereadFind waivers by reference id
waiverfile_list_waiversreadList waivers by date range
waiverfile_export_waiver_datareadExport waiver data
waiverfile_count_waiversreadCount waivers in a date range
waiverfile_list_sms_subscribersreadList SMS subscribers
waiverfile_create_eventwriteCreate an event
waiverfile_update_eventwriteUpdate an event
waiverfile_invite_event_managerswriteInvite event managers
waiverfile_create_event_categorywriteCreate an event category
waiverfile_usage_statusmetaUsage status (free-tier meter)
waiverfile_request_featuremetaRequest a missing feature
waiverfile_upgrademetaUpgrade to Pro or Pro+
waiverfile_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro (per user)$9/mo or $90/yr (2 months free)Unlimited*

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with waiverfile_upgrade (it returns a Stripe Checkout link). Cancel any time with waiverfile_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running waiverfile_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT © usefulapi. Not affiliated with or endorsed by WaiverFile.

Source: servers/waiverfile/README.md at commit 4046075

Tools

17

waiverfile_get_site

Get site details

Details of the WaiverFile site (WaiverSite) this API key belongs to: name, settings and plan information as WaiverFile reports them. GET /GetSiteDetails.

Takes no parameters.

waiverfile_list_waiver_forms

List waiver forms

List the waiver forms of the site (name, id, which fields they collect: email, address, phone, date of birth, minimum age, signature). Active forms by default; set include_deleted for all forms including deleted ones. Use the form ids when creating or updating events. GET /GetActiveWaiverForms or /GetAllWaiverForms.

Parametersinclude_deleted

waiverfile_list_events

List events by date range

List waiver events (a class, tour, party or session that collects waivers) whose date falls in a range, optionally only one event category. Each event has an id, name, start/end, headcount and spots remaining. Dates are UTC. GET /GetEventsByDateRange or /GetEventsByCategory.

Parametersendrequiredstartrequiredcategory_id

waiverfile_list_upcoming_events

List upcoming events

List upcoming waiver events between two dates (UTC), for example the next 7 days. GET /GetUpcomingEvents.

Parametersendrequiredstartrequired

waiverfile_list_event_categories

List event categories

List the event categories of the site (id and name). Use the ids to filter events or to put a new event in a category. GET /GetEventCategories.

Parametersinclude_disabled

waiverfile_get_event_waivers

Get waivers for an event

The waivers collected for one event: who signed, when, and the participants. Personal data of signers. GET /GetWaiversForEvent.

Parametersevent_idrequired

waiverfile_search_waivers

Search waivers

Search signed waivers by free-text terms (a signer's name, email or phone). Personal data of signers. GET /SearchWaivers.

Parameterstermsrequired

waiverfile_get_waiver

Get a waiver

One signed waiver by id: signer, date signed, participants, collected form data, event and the agreement text. Set lite for only the collected form data (no agreement text or event info). Signature and image bytes are never returned. GET /GetWaiver or /GetWaiverLite.

Parameterslitewaiver_idrequired

waiverfile_find_waivers_by_reference

Find waivers by reference id

Find waivers by the reference ids an outside booking or reservation system attached to them (referenceID1, 2, 3). Give at least one of reference_id_1/2/3, or reference_id_any to match all three fields. GET /GetWaiversByReferenceID.

Parametersreference_id_1reference_id_2reference_id_3reference_id_any

waiverfile_list_waivers

List waivers by date range

A page of the waivers signed in a date range. Set lite for only the collected form data (smaller). For a flat export with custom form columns use waiverfile_export_waiver_data; for totals use waiverfile_count_waivers. Personal data of signers. GET /GetAllWaiversByDateRange or /GetAllWaiversByDateRangeLite.

Parametersendrequiredlitestartrequiredpage_sizepage_index

waiverfile_export_waiver_data

Export waiver data

A page of flat waiver rows for a date range (the data behind the WaiverFile export): standard fields, optionally every custom form field as a column, and participants either as one comma-separated column or one row each. Personal data of signers. GET /GetWaiverData.

Parametersendrequiredstartrequiredpage_sizepage_indexinclude_custom_columnsconsolidate_participants

waiverfile_count_waivers

Count waivers in a date range

How many waivers a date range holds: record_count (GetWaiverDataCount, the rows waiverfile_export_waiver_data pages through) and waiver_count (GetAllWaiversByDateRangePageCount, which WaiverFile documents as the number of waivers in the range, used to work out the pages of waiverfile_list_waivers). pages_at_page_size is waiver_count divided by page_size (default 25), rounded up. GET /GetWaiverDataCount and /GetAllWaiversByDateRangePageCount.

Parametersendrequiredstartrequiredpage_size

waiverfile_list_sms_subscribers

List SMS subscribers

SMS marketing subscribers (phone numbers) that opted in during a date range, or with opted_out set the ones that opted out. Dates are UTC. Personal data. GET /GetSubscribersByDate or /GetOptedOutSubscribersByOptOutDate.

Parametersendrequiredstartrequiredopted_out

waiverfile_create_event

Create an event

Create a waiver event (a class, tour or session that collects waivers) with a name and a start/end time (UTC). Optionally an all-day flag, category, location, signing cut-off, participant limit and which waiver forms to attach (default: WaiverFile's own choice, see list_waiver_forms). Not idempotent: calling twice creates two events. Sends no email. POST /InsertEvent.

Parametersendrequirednamerequiredstartrequiredall_daylocationcategory_idsigning_cutoffwaiver_form_idsmax_participants

waiverfile_update_event

Update an event

Update an existing event. WaiverFile replaces the whole event, so name, start, end and all_day are required and anything left out is reset: category_id empty = no category, waiver_form_ids empty = ALL active forms are attached. Read the event first (waiverfile_list_events) and send its current values for the fields you do not change. Same input twice gives the same result. POST /UpdateEvent.

Parametersendrequirednamerequiredstartrequiredall_dayrequiredevent_idrequiredcategory_idwaiver_form_ids

waiverfile_invite_event_managers

Invite event managers

SENDS EMAIL: invites people (by email address) to manage one event; they can log in to WaiverFile and see its signers and participants, with the fields set in the account settings. WaiverFile emails each address, with your optional message in the body (skip_email_if_account_exists suppresses the email for people who already have an account). Cannot be undone by this server except with the vendor's own remove-managers action. Requires confirm=true after the user approved it. POST /InviteEventManagers.

Parametersconfirmmessageevent_idrequiredemail_addressesrequiredskip_email_if_account_exists

waiverfile_create_event_category

Create an event category

Create an event category (a label to group events). Not idempotent: calling twice with the same name creates two categories. POST /InsertEventCategory.

Parametersnamerequiredactive

Version history

14
  1. v1.15.4LatestNov 7, 2026
  2. v1.14.3Nov 5, 2026
  3. v1.14.2Nov 5, 2026
  4. v1.14.1Nov 4, 2026
  5. v1.14.0Nov 3, 2026
  6. v1.13.1Nov 3, 2026
  7. v1.12.0Nov 1, 2026
  8. v1.10.0Oct 31, 2026
  9. v1.9.0Oct 31, 2026
  10. v1.8.2Oct 30, 2026
  11. v1.8.0Oct 30, 2026
  12. v1.3.0Oct 26, 2026
  13. v1.0.3Oct 25, 2026
  14. v1.0.0Oct 25, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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