Instant Proof-of-Work computation for Altcha widgets. The only solver that respects privacy while maximizing speed.
// Solve Altcha PoW Challenge
import Sonic from 'captchasonic';
const client = new Sonic('YOUR_API_KEY');
const solution = await client.solve({
type: 'altcha',
websiteURL: 'https://example.com/form',
challenge: 'eyJhbGciOiJIUzI1NiIsI...', // The challenge string
});
// Returns the computed signature to submit
console.log(solution.signature);Industry-leading performance met with uncrackable reliability.
Pre-computed hashes allow for near-instant verification.
No cookies or fingerprinting data required to solve.
Works with all Altcha widget versions automatically.