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List available slots

GET
/v1/scheduling/event_types/{event_type}/slots

Starts an attendee can book between start and end (at most 62 days), as UTC instants to show in their own time zone. A host whose calendar can't be read isn't offered.

Authorization

bearerAuth
headerAuthorizationBearer <token>

A secret API key from the dashboard: coss_live_… for production environments, coss_test_… for sandbox environments.

Path Parameters

event_type*string

The event type's id or uid.

Query Parameters

start*string

An ISO 8601 instant with an offset.

end*string

An ISO 8601 instant with an offset.

host?string

Only this host's slots (id or uid).

duration_minutes?integer
Range5 <= value <= 1440
attributes?string

A JSON object narrowing a pool, such as {"licensed_in":"CA"}.

Header Parameters

Coss-Version?"2026-10-10"

The API version (a date) to use for this request. Defaults to your organization's version, pinned to the latest one when it first used the API and upgraded from the dashboard. The SDK always sends the version it was built for.

Value in"2026-10-10"

Response Body

The slots.

application/json
  1. response
object*"list"
Value in"list"
data*array<>
has_more*false
Value infalse
import { Coss } from "coss";const coss = new Coss({  apiKey: process.env.COSS_API_KEY,  baseUrl: "https://api.coss.com",});const { data, error } = await coss.scheduling.slots.list({  value: "evtype_01kd2m9a0b1c2d3e4f5g6h7j8m",}, {  start: "2027-01-04T15:00:00.000Z",  end: "2027-01-04T15:00:00.000Z",});
{  "object": "list",  "data": [    {      "start": "2027-01-04T15:00:00.000Z",      "end": "2027-01-04T15:30:00.000Z",      "hosts": [        "host_01kd2m9a0b1c2d3e4f5g6h7j8m"      ]    }  ],  "has_more": false}