API Documentation

3. Or use the SDK (v2.0)

npm install prompty

import { compress } from 'prompty';

// Compress a prompt — runs locally, no API call needed
const result = compress('Your long prompt...');
console.log(result.compressed);
console.log(result.stats.tokensSaved);       // Real token savings
console.log(result.stats.originalTokens);     // Original token count
console.log(result.stats.totalCompressedTokens); // Compressed token count

// Optional: plug in a real tokenizer for exact counts
import { encode } from 'gpt-tokenizer';
const result2 = compress('Your long prompt...', {
  tokenizer: (text) => encode(text).length
});

// Use with any LLM provider
import OpenAI from 'openai';
const openai = new OpenAI();
const res = await openai.chat.completions.create({
  model: 'gpt-4o',
  messages: [{ role: 'system', content: result.compressed }],
});