API Reference
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Webhook endpoints
List event types
GET
/v1/hooks/event_types
The environment's event types by name; archived ones only with include_archived.
bearerAuthheader
AuthorizationBearer <token>A secret API key from the dashboard: coss_live_… for production environments, coss_test_… for sandbox environments.
include_archived?stringAlso list archived types (default false).
Value in
"true""false"limit?integer1-100, default 50.
Range
1 <= value <= 100after?stringCursor: the name of the last type of the previous page.
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"A page of event types.
application/json- response
- response
- …
object*"list"Value in
"list"data*array<>has_more*booleanimport { Coss } from "coss";const coss = new Coss({ apiKey: process.env.COSS_API_KEY, baseUrl: "https://api.coss.com",});const { data, error } = await coss.hooks.eventTypes.list();{ "object": "list", "data": [ { "object": "hook_event_type", "name": "invoice.paid", "description": "An invoice was paid in full.", "schema": { "type": "object", "properties": { "invoice_id": { "type": "string" }, "amount": { "type": "integer" } } }, "examples": [ { "invoice_id": "in_1042", "amount": 4200, "currency": "usd" } ], "archived": false, "created_at": "2026-01-15T09:30:00.000Z", "updated_at": "2026-01-15T09:30:00.000Z" } ], "has_more": false}