API features

Two-way script conversion

Convert Simplified Chinese to Traditional Chinese and back.

Simple source and target codes

Choose the source and destination script with the documented s and t values.

Mixed-content support

Preserve numbers, Latin text, punctuation, and surrounding content.

Structured text response

Receive the converted text in a predictable JSON field.

Long-form content

Process articles, documentation, and other text up to the documented limit.

Publishing workflows

Prepare Chinese content for publishing, search, localization, and review.

API Document

HTTP Protocol:HTTPS

HTTP Method:POST

HTTP Endpoint:https://api.gugudata.io/v1/text/stconvert

Response Type:application/json; charset=utf-8

DEMO Endpoint:https://api.gugudata.io/v1/text/stconvert/demo

Live Demo:Try Interactive Demo

Postman Collection:Run in Postman

API Request Parameters

Name	Type	Is Required	Default Value	Remark
appkey	string	true	YOUR_APPKEY	API key used to authenticate the request.
content	string	true		Nonblank Chinese text to convert, up to the documented size limit.
from	string	true		Source script: s for Simplified Chinese or t for Traditional Chinese.
to	string	true		Target script: s for Simplified Chinese or t for Traditional Chinese.

API Response Parameters

Name	Type	Remark
dataStatus	object	Legacy response metadata. `dataStatus.statusCode` is not the HTTP status code for this endpoint family.
dataStatus.requestParameter	string	Privacy-safe summary of the normalized request.
dataStatus.statusCode	integer	Application-level status code.
dataStatus.statusDescription	string	Human-readable application status message.
dataStatus.responseDateTime	string	Time at which the response was generated.
dataStatus.dataTotalCount	integer	Number of matching or returned records for this request.
data	object	Object containing the converted Chinese text.
data.convertedContent	string	Converted content text.

API Response Status Codes

Status Code	Explanation of Status Code	Remarks
200	Request processed successfully.	Some endpoints expose a separate application-level status field in the response body, such as `dataStatus.statusCode`.
400	Invalid request parameters or request format.	Check required fields, data types, and request body format.
401	Missing or unknown application key.	Provide a valid `appkey` with the request.
403	The application key is recognized but access is not allowed.	The key may be expired, inactive, or not permitted for the requested API.
429	Request rate or trial usage limit exceeded.	Reduce request frequency and retry with backoff. If a trial allowance is exhausted, check Trial Keys for remaining requests and subscribe to continue.
500	Internal service error.	Retry later or contact support if the error persists.
503	Upstream service unavailable.	Retry later; the requested upstream dependency is temporarily unavailable.

Remote MCP

AI client access

Use this API through GuGuData Remote MCP

Connect your AI client once, authorize in the browser, and the client can use the GuGuData API tools available to your account. You do not need to paste an appkey into the MCP client.

Endpoint https://mcp.gugudata.io/mcp

Open MCP Guide

Generic MCP configuration

{
  "mcpServers": {
    "gugudata": {
      "url": "https://mcp.gugudata.io/mcp",
      "transportType": "streamable-http"
    }
  }
}

Code Snippets

Run in Postman Open LLM Page

Frequently asked questions

Can I convert Chinese text in both directions?

Yes. Set from=s and to=t for Simplified-to-Traditional conversion, or from=t and to=s for Traditional-to-Simplified conversion. Send the original text in content.

Does this translate Chinese into English?

No. It converts between Chinese writing scripts. English translation, pinyin generation, summarization, and language detection are outside this endpoint’s documented purpose.

What happens to numbers, Latin text, and punctuation?

The product documents mixed-content support, preserving surrounding numbers, Latin text, and punctuation while converting Chinese script. Test representative content when exact formatting is important.

Can I choose separate Taiwan or Hong Kong terminology profiles?

The current request exposes only the s and t script values. It does not document a regional terminology profile selector, so do not assume that every localized phrase will match a specific regional style.

Where is the converted text returned?

Read data.convertedContent from the response. Keep the original text if your publishing workflow needs comparison or editorial review, especially for names and context-dependent wording.

What does the 5 requests per second limit mean?

It is a request-rate limit, not a concurrency allowance. Keep your request rate at or below 5 per second. If the service returns a rate-limit response, reduce the frequency and retry with backoff.

Is total paid usage limited?

There is no total request cap during an active paid subscription and no usage-based overage charge.

How does the free trial work?

Each account can receive a limited trial key. Requests are shared across APIs in the same category. Check Trial Keys for the exact allowance and remaining requests.

How do renewal and cancellation work?

The plan renews annually until canceled. Manage or cancel the renewal from Dashboard → Orders & Billing. Access continues through the paid period after cancellation. See the Terms of Service for the current refund policy. If the billing portal is unavailable, contact support.

Technical support

Need help choosing an API or getting started?

support@gugudata.io

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