Build with UPSKILL

// Check skill reputation before payment
const trust = await upskill.getTrustScore(skillAddress);

// trust.tier: 'bronze' | 'silver' | 'gold' | 'diamond'
// trust.successRate: 0.0 - 1.0
// trust.totalCalls: number
// trust.stakedAmount: bigint

// Only call skills that meet your standards
const MIN_TIER = 'silver';
const MIN_SUCCESS_RATE = 0.99;

if (trust.tier >= MIN_TIER && trust.successRate >= MIN_SUCCESS_RATE) {
  // Proceed with x402 payment
  const result = await paymentFetch(skillEndpoint);
} else {
  // Skip this skill, find a better one
  console.log('Skill does not meet trust requirements');
}

import { wrapFetchWithTrust } from '@upskill/middleware';

// Wrap your fetch with trust-gating built in
const trustedFetch = wrapFetchWithTrust(paymentFetch, {
  minTier: 'silver',
  minSuccessRate: 0.99,
  onReject: (skill, trust) => {
    console.log(`Rejected ${skill}: tier=${trust.tier}`);
  }
});

// Now all calls are automatically trust-gated
const result = await trustedFetch(skillEndpoint);

npm install x402-fetch viem

import { createWalletClient, http } from 'viem';
import { privateKeyToAccount } from 'viem/accounts';
import { base } from 'viem/chains';

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const wallet = createWalletClient({
  account,
  chain: base,
  transport: http(),
});

import { wrapFetch } from 'x402-fetch';

const paymentFetch = wrapFetch(fetch, wallet);

const response = await paymentFetch(
  'https://market-analysis.up.railway.app/api/price?symbol=ETH'
);
const data = await response.json();
console.log(data.price);