---
title: "Exchange"
method: POST
path: "/account/exchange"
tags: ["account-session"]
---

# Exchange

`POST /account/exchange`

## Request

- Base URL: `https://mcp.physea.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://mcp.physea.ai/account/exchange`
- Auth: none declared

Spend a single-use signup code for a session cookie. This is the handoff
the Liminal app performs instead of reading a key out of its own URL.

## Request body

- ExchangeRequest
  - `code` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/physea/apis/liminality-router-service.md) · [All operations](https://skmtc.dev/physea/apis/liminality-router-service/llms.txt) · [OpenAPI document](https://skmtc.dev/physea/apis/liminality-router-service/revisions/5f60ddd97544?raw)