# Export current key usage CSV

Export current key usage CSV within the current credential scope.

## Endpoint and authentication

`GET https://api.tu-zi.com/api/log/token/export`

Transport: json

Use an inference API key. Examples contain placeholders; read credentials from environment variables.

```http
Authorization: Bearer YOUR_API_KEY
```

## Query parameters

| Field | Type | Required | Description / constraints |
| --- | --- | --- | --- |
| start_timestamp | integer | Yes | Start Unix seconds, required. |
| end_timestamp | integer | Yes | End Unix seconds, required; range cannot exceed 90 days. |
| model_name | string | No | Model filter. |
| type | integer | No | Log type filter. |

## Before running

Replace https://api.tu-zi.com with this site origin (do not append /v1 twice), and YOUR_MODEL with the exact marketplace model ID. Install requests for Python; use Node.js 20+ and save JavaScript as .mjs. WebSocket samples list their own dependencies.

Create an inference key on the site and set API_KEY in the environment; replace YOUR_API_KEY in cURL. Prepare local input.png/input.wav files for upload examples.

Start with a minimal request, then read the result using the response fields below. For async APIs, a returned task ID requires polling; acceptance does not mean generation has finished.

## Code examples

### curl

```bash
curl --request GET 'https://api.tu-zi.com/api/log/token/export?start_timestamp=1700000000&end_timestamp=1700086400' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --output 'usage.csv'
```

### python

```python
import json
import os
import requests

url = "https://api.tu-zi.com/api/log/token/export?start_timestamp=1700000000&end_timestamp=1700086400"
headers = json.loads("{\"Authorization\":\"Bearer YOUR_API_KEY\"}")
headers["Authorization"] = "Bearer " + os.environ["API_KEY"]
response = requests.request("GET", url, headers=headers, timeout=120)
response.raise_for_status()
if "json" in response.headers.get("Content-Type", "").lower():
    raise RuntimeError("Expected binary content, received JSON: " + response.text)
with open("usage.csv", "wb") as output:
    output.write(response.content)
```

### javascript

```javascript
import { writeFile } from 'node:fs/promises';
// Node.js 20+
const url = "https://api.tu-zi.com/api/log/token/export?start_timestamp=1700000000&end_timestamp=1700086400";
const headers = {
  "Authorization": "Bearer YOUR_API_KEY"
};
headers.Authorization = 'Bearer ' + process.env.API_KEY;
const response = await fetch(url, { method: "GET", headers });
if (!response.ok) throw new Error(await response.text());
if ((response.headers.get("content-type") || "").toLowerCase().includes("json")) throw new Error("Expected binary content, received JSON: " + await response.text());
await writeFile("usage.csv", Buffer.from(await response.arrayBuffer()));
```

## Response fields

| Field | Type | Description / constraints |
| --- | --- | --- |
| CSV | binary | UTF-8 CSV on success; failures may be JSON success:false. |

Illustrative response; some endpoints show essential fields only. Optional fields may be absent.

```json
{
  "success": true,
  "data": {}
}
```

## Errors and retries

Check HTTP status and protocol-specific errors; do not mix error formats across protocols. For 401/403 check credentials and permissions, for 429 back off, and for 5xx check gateway/upstream status. Error bodies may contain error/message/code depending on the protocol.

Use bounded exponential backoff for reads. Do not blindly retry task creation, generation, or key mutations, to avoid duplicate billing or execution.

## Constraints

Replace example timestamps with the required Unix-second range. Account exports use a system token; key exports use that key. Check status and Content-Type before saving the CSV.

## Documentation source

Definition version: 1

Reviewed: 2026-11-02

Source: https://api.tu-zi.com/en/docs/api/reference-usage-token-export

This export contains documentation and examples only, without real credentials, account data or user requests.