bytepack-js

Fixed-size binary encoding for AI agent communication. 20x more compact than JSON.

[](https://www.npmjs.com/package/bytepack-encode) [](https://opensource.org/licenses/MIT)

npm install bytepack-encode

const { encode, decode, health } = require('bytepack-encode');

// Encode any structured data → fixed 2,556 bytes
const result = await encode({
  action: 'observe',
  domain: 'market',
  asset: 'BTC',
  confidence: 'high',
});
console.log(`${result.s} bytes`); // 2556

// Decode back
const data = await decode(result.b64);

Encode structured data into fixed-size binary.

Decode base64 binary back to structured data.

Check service status.

• url — Override service URL (default: BYTEPACK_URL env or https://sutr.lol)
• timeout — Request timeout in ms (default: 10000)

| Metric | JSON | bytepack | |--------|------|----------| | Size | 5,000-50,000 bytes | 2,556 bytes | | Fixed size? | No | Yes | | Transport | Text | Any |

MIT