> ## Documentation Index
> Fetch the complete documentation index at: https://commet.co/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# trial.checkout_ready

> A trial checkout link is ready to share with the customer.

## When this fires

When a subscription with a trial is created and the customer still needs to add a payment method, Commet generates a checkout link that starts the trial once completed and fires this event as soon as the link is ready.

Completing this checkout saves the card and fires `trial.started`; the customer is not charged until the trial ends. Paid (non-trial) checkouts fire `checkout.ready` instead.

Use the `checkoutUrl` and `trialDays` to drive your own "start your X-day trial" messaging.


## OpenAPI

````yaml /openapi/en/webhooks/2026-08-27.json webhook trial.checkout_ready
openapi: 3.1.0
info:
  title: Commet Webhooks
  version: '2026-08-27'
  description: >-
    Outbound webhook events emitted by the Commet API. Each event is delivered
    as a signed POST to your configured endpoints.
servers: []
security: []
paths: {}

````

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