Manage SavvyCal scheduling links, book and cancel events, read availability, and register webhooks.
SavvyCal ships in the w6w first-party pack. It declares 21 actions, 2 health checks, and the host runs its code in a sandbox that never sees the credential.
io.w6w.savvycalSavvyCal is a scheduling tool: people book time through your scheduling links. This app drives the SavvyCal Meetings API (api.savvycal.com/v1) from a workflow.
It can list and read booked events, create an event on a link at an available slot, and cancel one; create, update, duplicate, toggle and delete scheduling links (personal or under a team scope); read a link’s open time slots so a workflow can pick a real one before booking; and look up the signed-in user, time zones, and workflow rules.
It also registers and removes SavvyCal webhooks, so a workflow can be told when an event is created, rescheduled or canceled instead of polling. Connect with a personal access token for your own account, or with OAuth when acting on behalf of other users. Health checks track SavvyCal’s Instatus status page.
Three routes to the same 21 actions. The Workflow tab is generated from SavvyCal's own manifest and carries its real ids, so it is copy-pasteable; the Code and CLI examples are the same call for any action on any app, so every app-specific value in them is a blank you fill in.
event-create Book an event on a scheduling link. The start and end must match an available slot — read them with Get Link Slots first. Conferencing details may arrive after creation for some providers (Zoom).
event-list List events scheduled via SavvyCal, one cursor page at a time. Vendor defaults: confirmed events, upcoming, ascending, only those you attend.
link-create Create a scheduling link in the current user's personal scope, or under a team/individual scope when a scope slug is given.
link-duplicate Create a copy of an existing scheduling link. Returns the new link.
link-list List the authenticated user's scheduling links, one cursor page at a time.
link-slots-get List available time slots on a scheduling link. When the link allows several durations, every duration is returned (slots may share a start time). The response is a bare array of {start_at, end_at, duration, rank}, returned here under `slots`.
link-toggle Flip a scheduling link between active and disabled. Not idempotent: calling it twice restores the original state.
link-update Update a scheduling link's name, description, private name or type.
time-zone-list Time zones with localized names, offsets and DST flags, returned under `timeZones`.
user-get The authenticated user's profile: id, name, email, time zone, time format, first day of week, plan (free / basic / premium) and avatar.
webhook-create Register a webhook URL. The response includes the webhook's signing `secret` (x-savvycal-signature is HMAC-SHA256 of the body, hex, prefixed `sha256=`) — this is the one place it is returned; store it where the receiver can reach it.
webhook-list List the authenticated user's webhooks. The signing `secret` the API returns on each webhook is removed from the output.
workflow-list List SavvyCal's own automation workflows (reminders, follow-ups) for scopes the user manages.
workflow-rules-list The rules of one SavvyCal workflow (trigger type, offset and actions), returned under `rules`.
A workflow step names the app and the action, and the editor fills in the
connection when you pick one. This is the Step shape from the
workflow spec, carrying SavvyCal's real ids.
{
"manifestVersion": "2",
"name": "savvycal-example",
"steps": [
{
"id": "event-create",
"uses": {
"app": "io.w6w.savvycal",
"action": "event-create",
"connection": "conn_YOUR_CONNECTION_ID"
},
"with": {
"linkId": "<linkId>",
"displayName": "<displayName>",
"email": "<email>"
}
}
]
}event-create event-get event-list link-create link-duplicate +16 more actions available
Every app-specific value here is a blank you have to fill in. An
app action is reached through the connection that authenticates it, so the
address is a connection id, not the app id — and connections belong to your account,
so a public page cannot know yours. Create one for SavvyCal, then fill in
the three blanks: conn_YOUR_CONNECTION_ID, the action key, and the
parameters that action declares. The call itself is real — the shape is transcribed
from the studio's own snippet builder, which prints the same kind of blanks — but
nothing in it is specific to SavvyCal. The Workflow tab is where this app's
real ids are.
npm install @w6w/sdkyarn add @w6w/sdkpnpm add @w6w/sdkdeno add npm:@w6w/sdkimport { W6wClient, isActionRun } from "@w6w/sdk";
// Reads W6W_BASE_URL and W6W_TOKEN from the environment when omitted.
const client = new W6wClient();
const envelope = await client.run({
urn: "conn_YOUR_CONNECTION_ID",
action: "event-create",
payload: {
linkId: "<value>",
displayName: "<value>",
email: "<value>",
startAt: "<value>",
endAt: "<value>",
timeZone: "<value>",
// phoneNumber: "<value>",
// fields: "<value>",
// metadata: "<value>",
},
});
if (isActionRun(envelope)) console.log(envelope.value); npm install -g @w6w/cli w6w run conn_YOUR_CONNECTION_ID --action event-create --payload '{"linkId":"<value>","displayName":"<value>","email":"<value>","startAt":"<value>","endAt":"<value>","timeZone":"<value>"}' Give an AI agent SavvyCal — without giving it SavvyCal's credentials. One MCP endpoint exposes every app, function and workflow the caller is entitled to, as tools it can discover and run. Access is granted per team while we onboard.
One tool call{
"name": "w6w_invoke",
"arguments": {
"ref": "app:io.w6w.savvycal#event-create",
"input": {
"linkId": "<linkId>",
"displayName": "<displayName>",
"email": "<email>"
}
}
}
Every tool names its target with a single ref. The
app: form above doesn't name a connection at all — the
host resolves which of the caller's SavvyCal connections to sign
with, and refuses rather than guesses when the answer is ambiguous.
The token is attached host-side, at the moment of the call. It is never a tool argument, never in the model's context, and never in a transcript — so a prompt injection has nothing to exfiltrate.
Tools are derived per end user from what that person has actually connected and is entitled to — not one shared bot identity carrying the union of everyone's access.
Multi-step work runs on the workflow engine and returns a run handle the agent can poll — retries, branching and state survive the conversation that started them.
SavvyCal's declared health checks are on the surface too, so an agent can tell "the vendor is down" from "your credential expired" before it burns a retry on either.
The MCP surface is part of the hosted platform. SavvyCal itself is MIT, and the runtime that executes it is source-available (FSL).
SavvyCal declares its own checks, so its health is a property of the app rather than something the host guesses at.
Component status from savvycal.instatus.com. The verdict follows the `App` component; calendar-connection and integration components are reported but do not move it.