---
title: "Topup Account"
method: POST
path: "/register/account/topup"
tags: ["account"]
---

# Topup Account

`POST /register/account/topup`

## Request

- Base URL: `https://anchorregistry.com` (the document declares no server; this is the origin it was published from)
- URL: `https://anchorregistry.com/register/account/topup`
- Auth: none declared

Extend an existing ACCOUNT's capacity via x402 payment.

## Request body

- TopupRequest
  - `anchor_key` string, required
  - `capacity_tier` string

## Response `200`

Successful Response

- unknown

## Other responses

- `402`: Payment Required
- `422`: Validation Error

---

[API](https://skmtc.dev/anchorregistry/apis/anchorregistry-api.md) · [All operations](https://skmtc.dev/anchorregistry/apis/anchorregistry-api/llms.txt) · [OpenAPI document](https://skmtc.dev/anchorregistry/apis/anchorregistry-api/revisions/73ff7877dda3?raw)