[ Developer / API Reference ]

API Reference

Complete reference for all LocaleNLP API endpoints. REST-based. JSON request and response. Bearer token authentication. Base URL: https://api.localenlp.com

Get API key →Documentation

Endpoints

50+

Languages

< 8ms

Avg. latency

99.9%

Uptime SLA

10 endpoints

POSTspeech

⚡ < 8ms

/api/v1/speech/recognize

Speech Recognition

Convert spoken audio in African languages to text with state-of-the-art ASR. Supports 50+ language variants, tone-aware CTC decoding, and streaming transcription.

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POSTspeech

⚡ < 12ms

/api/v1/speech/synthesize

Text to Speech

Generate natural-sounding speech from text in multiple African languages and dialects. Tone-preserving synthesis with voice variant selection per language.

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POSTspeech

⚡ async

/api/v1/speech/transcribe

Audio Transcription

Transcribe longer audio files in African languages with timestamps and speaker diarization. Supports batch processing for files up to 4 hours.

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POSTtext

⚡ < 4ms

/api/v1/text/detect-language

Language Detection

Automatically identify the African or Arabic language in a given text sample with confidence scores. Returns top 3 candidates with probability distribution.

Named Entity Recognition

Identify and classify named entities in African language text. People, organizations, locations, dates. Trained on community-validated corpora.

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POSTtext

⚡ < 6ms

/api/v1/text/sentiment

Sentiment Analysis

Determine sentiment expressed in African language text. Negative, neutral, positive, with fine-grained emotion classification for 20+ languages.

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POSTtext

⚡ < 20ms

/api/v1/text/summarize

Text Summarization

Generate concise summaries of longer texts in African languages. Extractive and abstractive modes. Tunable summary length.

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POSTtranslation

⚡ < 15ms

/api/v1/translation/translate

Machine Translation

Translate text between English and 50+ African language variants with community-validated accuracy. Document-level context window for coherent long-form translation.

Language Support

Get real-time information about supported languages, per-language model capabilities, dialect variants, and current benchmark scores.

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POSTcustom

⚡ async

/api/v1/custom/train

Custom Model Training

Fine-tune foundation models on your domain-specific data. Submit training jobs, monitor progress, and deploy custom endpoints via API.

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SDKs

Client libraries

Python

pip install localenlp

JavaScript

npm install localenlp

go get localenlp-go

Rust

cargo add localenlp

View SDK documentation →

Authentication

Bearer token. One header.

All API requests must include your API key as a Bearer token in the Authorization header. Keys are scoped to project, rotatable, and audited in real-time.

Get your API key →

~/POST /api/v1/speech/recognize

curl https://api.localenlp.com/api/v1/speech/recognize \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"audio_url":"...","language":"sw"}'

cURL