> For the complete documentation index, see [llms.txt](https://docs.anchored.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.anchored.finance/trading-api/getting-started/conventions.md).

# Conventions

## Base URL

Production environment:

```
https://rwa-api.anchored.finance/rwa/trading
```

All API paths start with `/api/v1`:

```
GET /api/v1/symbols
```

Full production URL:

```
https://rwa-api.anchored.finance/rwa/trading/api/v1/symbols
```

> **HMAC authentication note:** For HMAC calculation, the `URI` only uses `/api/v1/symbols` — not the domain or `/rwa/trading` prefix.

## Unified response structure

All endpoints return:

| Field    | Type                  | Description                       |
| -------- | --------------------- | --------------------------------- |
| `code`   | number                | Business status. `200` = success. |
| `errMsg` | string                | Error message. Empty on success.  |
| `data`   | object / array / null | Payload.                          |
| `uuid`   | string / null         | Request UUID.                     |
| `t`      | number / null         | Server timestamp.                 |

Success example:

```json
{
  "code": 200,
  "errMsg": "",
  "data": {
    "symbol": "AAPL"
  },
  "uuid": null,
  "t": null
}
```

### Pagination

Paginated `data`:

| Field   | Type   | Description             |
| ------- | ------ | ----------------------- |
| `total` | number | Total matching records. |
| `rows`  | array  | Current page.           |

Parameters:

| Parameter | Default | Constraints                        |
| --------- | ------- | ---------------------------------- |
| `page`    | `1`     | Treated as `1` if < 1.             |
| `limit`   | `10`    | Treated as `10` if < 1; max `100`. |

## Error handling

Business errors use HTTP `400` with `code` and `errMsg` in the body.

| code    | errMsg                  | Common cause                                                  |
| ------- | ----------------------- | ------------------------------------------------------------- |
| `401`   | `Unauthorized`          | Invalid key, signature, nonce, timestamp, IP, or permissions. |
| `500`   | `Server internal error` | Validation failure, missing config, downstream error.         |
| `10000` | `Unsupported chainId`   | `x-api-chain-id` not supported.                               |
| `10001` | `Unsupported product`   | `x-api-p` not in public list.                                 |
| `10002` | `ChainId is missing`    | Missing chain ID header.                                      |
| `10003` | `Product Id is missing` | Missing product type header.                                  |


---

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