---
title: "Prepare a wallet-bound incident discount for an explicitly supported paid service"
method: POST
path: "/v1/support/tickets/{ticketId}/checkout"
tags: ["Support"]
---

# Prepare a wallet-bound incident discount for an explicitly supported paid service

`POST /v1/support/tickets/{ticketId}/checkout`

## Request

- Base URL: `https://agent.connskill.com` (the document declares no server; this is the origin it was published from)
- URL: `https://agent.connskill.com/v1/support/tickets/{ticketId}/checkout`
- Auth: API key in header `Sign-In-With-X`

Free quote, no money moves. Send the same body to the returned payment resource with X-Support-Checkout to receive its reduced HTTP 402. The later signed authorization must use the exact wallet, nonce and amount. No manual transfers or stacking.

## Path parameters

- `ticketId` string, required

## Request body

- object
  - `service` 'eu-embed-v1', required
  - `paymentNonce` string, required
  - `request` object, required: Exact JSON body for the future paid request. Never include a price or promotion.

## Response `200`

Successful free support operation

- object

## Other responses

- `400`: Invalid request
- `401`: Wallet proof missing, invalid, expired or reused
- `404`: Ticket or purchase does not exist for this wallet
- `409`: Discount unavailable, disabled or ineligible
- `429`: Challenge rate limit
- `503`: Support storage or signature verifier unavailable; no access was granted

---

[API](https://skmtc.dev/connskill/apis/connskill-growth-services.md) · [All operations](https://skmtc.dev/connskill/apis/connskill-growth-services/llms.txt) · [OpenAPI document](https://skmtc.dev/connskill/apis/connskill-growth-services/revisions/aae873ea0805?raw)