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Endpoint
POST
/api/v1/translate/detectNative detection endpoint.
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Detect the source language for one logical text payload. No target language is required.
/api/v1/translate/detectNative detection endpoint.
Request example
/api/v1/translate/detectcurl -X POST "https://translate.lexel.ai/api/v1/translate/detect" \-H "Authorization: Bearer lxl_your_api_key" \-H "Content-Type: application/json" \-d '{"request_id": "req_detect_demo_001","content_mode": "plain","input": {"items": [{"txt": "地獄、それは他人である。"}]}}'
Response example
{"ok": true,"request_id": "req_detect_demo_001","operation": "detect","source_language_tag": "ja-Jpan","source_language_name": "Japanese","detection_confidence": 0.98,"inference_latency": 87,"output": {"kind": "detect"},"warnings": [],"lowConfidence": false,"fallbackSuggested": false}
| Field | Type | Required | Description |
|---|---|---|---|
| request_id | string | Yes | Caller-provided trace ID returned in the response. |
| content_mode | auto | plain | markdown | html | json | xml | yaml | csv | No | Optional content mode. Structured content is preprocessed before detection. |
| input.items | array(length = 1) | Yes | Detection accepts exactly one logical item. |
| input.items[0].txt | string | Yes | Text to detect. |
| Field | Type | Required | Description |
|---|---|---|---|
| ok | boolean | Yes | True when detection succeeds. |
| request_id | string | Yes | Echoes the request ID. |
| operation | "detect" | Yes | Response operation discriminator. |
| source_language_tag | string | Yes | Canonical detected language tag. |
| source_language_name | string | No | Human-readable detected language name. |
| detection_confidence | number | null | No | Provider-backed confidence when available. |
| inference_latency | number | null | No | Provider-reported inference latency in milliseconds when available. |
| lowConfidence | boolean | Yes | True when confidence falls below the route threshold. |
| fallbackSuggested | boolean | Yes | Legacy uncertainty hint mirroring lowConfidence. It does not control provider routing. |
| warnings | array | Yes | Non-fatal detection warnings. |
Some clients also accept camelCase aliases such as language, detectionConfidence, and inferenceLatency, but responses use snake_case fields above.