TypeScript SDK

npm install @belticlabs/kya

import {
  validateDeveloperCredential,
  validateAgentCredential,
  decodeToken,
  verifyHttpSignature,
  generateKeyDirectory,
} from '@belticlabs/kya';

// Validate a developer credential
const devResult = validateDeveloperCredential(credentialData);
if (!devResult.valid) {
  console.error('Validation errors:', devResult.errors);
}

// Validate an agent credential
const agentResult = validateAgentCredential(agentData);
if (agentResult.valid) {
  console.log('Agent:', agentResult.data.agentName);
}

import { validateDeveloperCredential, isDeveloperCredential } from '@belticlabs/kya';

const dev = require('../beltic-spec/examples/developer/v1/tests/valid-individual-minimal.json');

const result = validateDeveloperCredential(dev);
if (!result.valid) {
  throw new Error('Invalid developer credential');
}

console.log('Developer verified:', result.data.legalName);

import { validateAgentCredential, isAgentCredential } from '@belticlabs/kya';

const agent = require('../beltic-spec/examples/agent/v1/tests/valid-simple-agent.json');

const result = validateAgentCredential(agent);
if (result.valid) {
  console.log('Agent name:', result.data.agentName);
  console.log('Safety scores:', result.data.safetyAttestation);
}

import { verifyHttpSignature, fetchAgentCredential } from '@belticlabs/kya';

// Verify incoming signed request
const result = await verifyHttpSignature(
  {
    method: req.method,
    url: `https://${req.hostname}${req.path}`,
    headers: req.headers,
    body: req.body
  },
  {
    fetchKeyDirectory: async (url) => {
      const response = await fetch(url);
      return response.json();
    }
  }
);

if (result.valid) {
  // Optionally fetch the agent's full credential
  const { credential } = await fetchAgentCredential(result.signatureAgentUrl);
  console.log('Request from verified agent');
}