Prolinks

import { encodeProlink } from '@base-org/account';

const prolink = await encodeProlink({
  method: 'wallet_sendCalls',
  params: {
    version: '2.0.0',
    chainId: '0x2105',
    calls: [{
      to: '0xUSDCAddress',
      data: '0xtransferCalldata',
      value: '0x0',
    }],
  },
});

const prolink = await encodeProlink({
  method: 'wallet_sendCalls',
  params: {
    version: '2.0.0',
    chainId: '0x2105',
    calls: [{
      to: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913', // USDC on Base
      data: '0xa9059cbb000000000000000000000000RECIPIENT0000000000000000000000000000000000000000000000000000000000989680', // transfer(address,uint256)
      value: '0x0',
    }],
  },
});

const prolink = await encodeProlink({
  method: 'wallet_sendCalls',
  params: { /* ... */ },
  capabilities: {
    dataCallback: {
      callbackURL: 'https://your-api.com/callback',
      events: ['initiated', 'postSign'],
    },
  },
});

const prolink = await encodeProlink({
  method: 'wallet_sendCalls',
  params: {
    version: '2.0.0',
    chainId: '0x2105',
    calls: [
      { to: '0xToken', data: '0xapproveData', value: '0x0' },
      { to: '0xDex', data: '0xswapData', value: '0x0' },
    ],
  },
});

import { decodeProlink } from '@base-org/account';

const decoded = await decodeProlink(payload);
// decoded.method → 'wallet_sendCalls'
// decoded.params → { version, chainId, calls }
// decoded.chainId → number | undefined
// decoded.capabilities → Record<string, unknown> | undefined

const decoded = await decodeProlink(payload);

if (decoded.chainId !== 8453) throw new Error('Wrong chain');
if (decoded.method !== 'wallet_sendCalls') throw new Error('Unexpected method');

const { calls } = decoded.params;
const allowedContracts = ['0xUSDC...', '0xDex...'];
for (const call of calls) {
  if (!allowedContracts.includes(call.to)) {
    throw new Error(`Untrusted contract: ${call.to}`);
  }
}

await provider.request({ method: decoded.method, params: [decoded.params] });

import { createProlinkUrl } from '@base-org/account';

const url = createProlinkUrl(prolink, 'https://yourapp.com/pay');
// https://yourapp.com/pay?prolink=<encoded-payload>

const prolink = await encodeProlink({
  method: 'wallet_sendCalls',
  params: {
    version: '2.0.0',
    chainId: '0x2105',
    calls: [{ to: recipientAddress, data: transferCalldata, value: '0x0' }],
  },
});
const paymentUrl = createProlinkUrl(prolink);
// Share this URL or render as QR code

const decoded = await decodeProlink(payload);
const { calls } = decoded.params;

const preview = calls.map((call, i) =>
  `Call ${i + 1}: to=${call.to}, value=${call.value}`
).join('\n');