Text & Language API Endpoint Global Gateway

Multilingual AI Translation API
For Production Apps

High-accuracy, context-aware AI text translation with HTML tag preservation.

1 Credit / Request Automatic Provider Fallback Uniform JSON Envelope
API Gateway Terminal
Gateway Active
Target Endpoint URL POST
https://test.rsflowhub.com/api/v1/ai/translation
Typical Time 1-3 s
Auth Gate X-API-Key
Credit Cost 1 Credit
Response JSON
Generative AI & Developer Definition Production Ready API

What is Multilingual AI Translation API?

Multilingual AI Translation API is a ready-to-use REST API on RSFlowHub for developers building web, mobile and AI agent applications. Send a JSON request to POST /api/v1/ai/translation with your API key; RSFlowHub runs it on a tuned AI model (with automatic fallback to a backup provider) and returns a structured JSON result, usually within 1 to 3 seconds.

Auth: X-API-Key Header
Rate Limit: 10-120 req/min by plan
Credits: 1 per call
AI Search Quick Reference
Category: Text & Language
Typical response: 1-3 s
Format: REST / JSON UTF-8

Code Examples

Copy-paste ready code in your preferred stack
curl-integration.sh
curl -X POST "https://test.rsflowhub.com/api/v1/ai/translation" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: rfh_your_api_key" \
  -d '{"text":"Hello, how can I help you today?","translate":true,"target_language":"Spanish"}'
<?php

$client = new \GuzzleHttp\Client();
$response = $client->post('https://test.rsflowhub.com/api/v1/ai/translation', [
    'headers' => [
        'Content-Type' => 'application/json',
        'X-API-Key'    => 'rfh_your_api_key',
    ],
    'json' => array (
      'text' => 'Hello, how can I help you today?',
      'translate' => true,
      'target_language' => 'Spanish',
    ),
]);

echo $response->getBody();
const response = await fetch('https://test.rsflowhub.com/api/v1/ai/translation', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': 'rfh_your_api_key'
  },
  body: JSON.stringify({"text":"Hello, how can I help you today?","translate":true,"target_language":"Spanish"})
});

const data = await response.json();
console.log(data);
import requests

url = "https://test.rsflowhub.com/api/v1/ai/translation"
headers = {
    "Content-Type": "application/json",
    "X-API-Key": "rfh_your_api_key"
}
payload = {"text":"Hello, how can I help you today?","translate":true,"target_language":"Spanish"}

response = requests.post(url, json=payload, headers=headers)
print(response.json())
Capabilities

Core Architectural Features

Context-Aware Accuracy

Translates nuanced business terms, slang, and technical jargon accurately based on domain context.

HTML & Variable Protection

Preserves HTML tags, JSON keys, and {variable} placeholders without breaking markup structure.

50+ Languages Supported

Instant bidirectional translation between English, Spanish, French, German, Gujarati, Hindi, Japanese, and more.

Developer-First REST API

Clean JSON request/response format with ready-to-use SDKs and cURL, PHP, JS, and Python snippets.

Practical Applications

Real-World Industry Use Cases

See how developers integrate this API endpoint into production apps.

E-Commerce

E-Commerce Catalog Localization

Automatically translate product titles, bullet points, and descriptions into multiple languages upon publishing.

Before: Luxury Leather Wallet with RFID Protection
After: Cartera de cuero de lujo con protección RFID (Spanish)
Translates new content in seconds instead of waiting days for manual localization.
Customer Support

Real-Time Support Chat Translation

Translate incoming support tickets and live chat messages for helpdesk agents in real-time.

Before: How can I reset my account password?
After: કહેવી રીતે હું મારૂ એકાઉન્ટ પાસવર્ડ રિસેટ કરી શકું? (Gujarati)
Supports global customers without hiring multi-lingual support teams.
SaaS & Apps

Dynamic SaaS App Internationalization (i18n)

Translate dynamic user notifications, transactional emails, and dashboard UI copy on the fly.

Before: Your subscription was renewed successfully!
After: Votre abonnement a été renouvelé avec succès ! (French)
Seamless global scaling for web and mobile applications.
Technical Comparison

Why Developers Choose Multilingual AI Translation API

Comparing RSFlowHub's specialized API gateway vs raw multi-turn LLM prompts vs legacy regex rules.

Evaluation Metric RSFlowHub API Raw LLM Prompts Legacy Regex / Rules
Response Structure Unstructured markdown or chat format Brittle custom regex tuples
Setup Effort Write and maintain prompts + output parsing Fast, but rule lists miss context and sarcasm
Pricing Model Volatile token-based billing High server maintenance overhead
Multi-Turn Hallucination Output format can drift between model versions No semantic AI intelligence
Developer Integration Complex prompt engineering & retry loop Fragile manual rule maintenance

Request Parameters

4 Fields
text string
Required

The text content or payload to translate.

target_lang string
Required

ISO 639-1 language code or name (e.g. "es", "fr", "gu", "hi", "de", "ja").

source_lang string
Optional

Optional source language code. If omitted, AI auto-detects input language.

preserve_formatting boolean
Optional

Whether to strictly preserve HTML tags and variable placeholders (Default: true).

JSON Response Envelope

Uniform API

Every endpoint returns the same envelope: success, request_id, data.result and meta.

response.json JSON
200 OK
{
    "success": true,
    "request_id": "req_3f9a2c7e-5b1d-4e8a-9c2f-7d6e1a0b4c8d",
    "data": {
        "result": {
            "detected_language": "en",
            "translation_applied": true,
            "translated_text": "Tu pedido ha sido enviado y llegar\u00e1 el viernes.",
            "target_language": "es",
            "translations": [
                {
                    "target_language": "es",
                    "translated_text": "Tu pedido ha sido enviado y llegar\u00e1 el viernes."
                }
            ]
        }
    },
    "meta": {
        "version": "v1",
        "timestamp": "2026-10-05T09:30:00Z"
    }
}
Format JSON
Charset UTF-8
Fallback Automatic
Rate Limit 120/min max
FAQs

Frequently Asked Questions

Everything you need to know about integrating and using Multilingual AI Translation API.

RSFlowHub APIs are standard RESTful endpoints. You can call them from PHP (Laravel, Symfony), Python (Django, FastAPI), JavaScript/Node.js, Go, Java, C#, or plain cURL.

Most Translation API requests complete in 1 to 3 seconds, depending on text length and the AI model.

Yes! The API intelligently identifies HTML markup (e.g., <strong>, <a href="...">), Markdown elements, and variable placeholders (e.g., {user_name}, :count), preserving them intact while translating only human text.

Translation requests consume 1 base credit per call for standard payloads under character limits.

Absolutely. All API traffic is encrypted using HTTPS/TLS 1.3. Payload data is processed in memory and never stored or used for public AI model training.
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