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

# GET /v1/balance — 账户余额与交易状态

> 查询您的 CSBoard 美元余额，已结算和冻结的金额，以及您的 API 密钥是否启用了交易。

balance 端点返回您当前以美元计的余额，以及对自动化购买至关重要的明细：有多少是**已结算**（不可撤销且可用于不可撤销购买）的，以及当前有多少处于**冻结**状态。请使用 `trading_enabled` 在尝试下单之前确认该密钥已开启购买功能。

**需要身份验证。** 请将密钥作为 `Authorization: Bearer csb_pub_...` 发送。

## 参数

此端点不接受任何查询参数。

## 响应字段

<ResponseField name="currency" type="string" required>
  始终为 `"USD"`。所有金额均以美元计价。
</ResponseField>

<ResponseField name="balance_usd" type="number" required>
  您以美元计的总余额。
</ResponseField>

<ResponseField name="trading_enabled" type="boolean" required>
  此 API 密钥是否启用了购买功能。如果为 `false`，购买端点将返回 `trading_not_enabled`。
</ResponseField>

<ResponseField name="settled_balance_usd" type="number" required>
  您余额中已结算且不可撤销的部分。这部分余额可用于不可撤销的购买，例如 `POST /v1/market/buy`。
</ResponseField>

<ResponseField name="held_usd" type="number" required>
  您余额中当前处于冻结状态的部分。
</ResponseField>

<ResponseField name="held_until" type="datetime | null" required>
  冻结部分解冻时的 ISO 8601 时间戳；如果没有冻结金额，则为 `null`。
</ResponseField>

## 示例请求

```bash theme={null}
curl https://csboard.com/v1/balance \
  -H "Authorization: Bearer csb_pub_..."
```

## 示例响应

```json theme={null}
{
  "currency": "USD",
  "balance_usd": 1240.55,
  "trading_enabled": true,
  "settled_balance_usd": 980.10,
  "held_usd": 260.45,
  "held_until": "2026-07-06T12:00:00Z"
}
```

## 错误代码

| HTTP 状态码 | 代码                                    | 含义                                |
| -------- | ------------------------------------- | --------------------------------- |
| 401      | `missing_api_key` / `invalid_api_key` | API 密钥缺失或无效。                      |
| 429      | `rate_limit_exceeded`                 | 请求过多。请按照 `Retry-After` 响应头中的秒数退避。 |

<Tip>
  在调用不可撤销的购买端点之前，请检查 `settled_balance_usd` 而非 `balance_usd`——冻结资金无法用于此类购买。
</Tip>


## OpenAPI

````yaml GET /balance
openapi: 3.1.0
info:
  title: CSBoard API
  version: 1.0.0
  description: >-
    Market data over the CSBoard marketplace — live listings, floats, stickers,
    minAsk prices, FX rates — plus opt-in buying straight from your balance.
    Free to read, key-gated, built for automation.
  contact:
    name: CSBoard
    url: https://csboard.com/docs
servers:
  - url: https://csboard.com/v1
    description: Production
security:
  - bearerAuth: []
tags:
  - name: Status
    description: Liveness and freshness probes.
  - name: Market data
    description: Read the live catalog, prices, and FX rates.
  - name: Trading
    description: Buy listings from your CSBoard balance. Opt-in, key-gated.
  - name: Account
    description: Your balance, settled funds, and trading status.
paths:
  /balance:
    get:
      tags:
        - Account
      summary: Account balance and trading status
      description: >-
        Your current balance in USD, plus how much of it is settled
        (reversal-safe) versus held. Use `settled_balance_usd` to know what is
        available for reversal-safe spending, and `trading_enabled` to check
        whether buying is turned on for this key.
      operationId: getBalance
      responses:
        '200':
          description: Current balance and trading status.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Balance'
              example:
                currency: USD
                balance_usd: 1240.55
                trading_enabled: true
                settled_balance_usd: 980.1
                held_usd: 260.45
                held_until: '2026-07-06T12:00:00Z'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  schemas:
    Balance:
      type: object
      properties:
        currency:
          type: string
          example: USD
        balance_usd:
          type: number
          description: Total balance in USD.
        trading_enabled:
          type: boolean
          description: Whether buying is enabled for this key.
        settled_balance_usd:
          type: number
          description: >-
            Portion of the balance that is settled (reversal-safe) and spendable
            on reversal-safe purchases.
        held_usd:
          type: number
          description: Portion of the balance currently held.
        held_until:
          type:
            - string
            - 'null'
          format: date-time
          description: When the held portion clears, or null if nothing is held.
      required:
        - currency
        - balance_usd
        - trading_enabled
        - settled_balance_usd
        - held_usd
        - held_until
    Error:
      type: object
      description: >-
        All errors return { code, detail }. Some carry extra fields (e.g.
        price_moved adds current_total_usd, insufficient_balance adds
        required_usd/current_usd).
      properties:
        code:
          type: string
          description: >-
            Machine-readable error code, e.g. rate_limit_exceeded,
            trading_not_enabled, price_moved.
        detail:
          type: string
          description: Human-readable explanation.
      required:
        - code
  responses:
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            code: unauthorized
            message: Missing or invalid API key.
    RateLimited:
      description: Rate limit exceeded. Includes a Retry-After header.
      headers:
        Retry-After:
          description: Seconds to wait before retrying.
          schema:
            type: integer
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            code: rate_limit_exceeded
            message: Too many requests.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Send your key as a Bearer token on every request: `Authorization: Bearer
        csb_pub_...`. Generate keys in your CSBoard profile.

````