---
title: "Purchases extra credits via slider top-up (Roles: user)"
method: POST
path: "/payment/topup"
tags: ["Payments"]
---

# Purchases extra credits via slider top-up (Roles: user)

`POST /payment/topup`

## Request body

- TopupPayload
  - `credits` integer, required — Number of credits to purchase (server computes the price from TOPUP brackets)

## Response `200`

Success

- TopupResult
  - `invoice_id` string
  - `credits` integer
  - `amount_cents` integer
  - `status` string

## Other responses

- `400` — Error

---

[API](https://skmtc.net/ludo/apis/ludo-ai-api.md) · [All operations](https://skmtc.net/ludo/apis/ludo-ai-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/ludo/ludo-ai-api/revisions/3af866d68651/schema)