Five lines.Verified on-chain.

npm install prova-agent-sdk

import { ProvaClient } from 'prova-agent-sdk';
import { Keypair } from '@solana/web3.js';

const client = new ProvaClient({
  rpcUrl: process.env.SOLANA_RPC_URL,   // Helius devnet recommended
  agentKeypair: Keypair.fromSecretKey(agentSecretKey),
});

// Hash any structured action payload — deterministic, collision-resistant
const actionHash = await ProvaClient.hashAction(
  JSON.stringify({ operation: 'transfer', amount: '500', token: 'USDC' })
);

const receipt = await client.attest({
  operatorKeypair,   // wallet that registered this agent
  actionHash,
  actionType: 'Transaction',
  privacyMode: false,
});

console.log('Receipt tx:', receipt.txSignature);
console.log('Explorer:  ', receipt.explorerUrl);

// One Solana transaction → up to 100 receipts (ComputeBudget auto-scaled)
const batch = await client.batchAttest({
  operatorKeypair,
  attestations: [
    { actionHash: hash1, actionType: 'ToolCall' },
    { actionHash: hash2, actionType: 'Decision', privacyMode: true },
    { actionHash: hash3, actionType: 'ModelInvocation' },
  ],
});

import { ProvaApiClient } from 'prova-agent-sdk';

const api = new ProvaApiClient({
  apiUrl: 'https://prova-api.fly.dev',
  apiKey: 'prova_...',   // generate at /app/api-keys
});

const { data } = await api.listAttestations({ limit: 20 });

// Pattern: wrap any protocol interaction in a Prova receipt.
// Works with Jupiter swaps, pump.fun buys, Orca LPs, or any Solana program.
// No modification to the protocol — Prova is a receipt layer on top.

// 1. Build the structured payload for the action your agent just performed
const swapPayload = {
  protocol:    'jupiter',
  operation:   'exactInSwap',
  inputMint:   'EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v', // USDC
  outputMint:  'So11111111111111111111111111111111111111112',   // SOL
  inputAmount: '100000000',  // 100 USDC (6 decimals)
  slippageBps: 50,
  routePlan:   ['Orca', 'Raydium'],
  agentId:     operatorKeypair.publicKey.toBase58(),
  timestamp:   Date.now(),
};

// 2. Hash the payload — same hash every time for the same action params
const actionHash = await ProvaClient.hashAction(JSON.stringify(swapPayload));

// 3. Attest — one Ed25519 proof sealed on Solana
const receipt = await client.attest({
  operatorKeypair,
  actionHash,
  actionType: 'Transaction',
  privacyMode: false,   // set true for Vanish mode (hash on-chain, payload off-chain)
});

// → Auditors, regulators, and users can now verify what your agent swapped,
//   when, and with which parameters — without trusting your logs.
console.log('DeFi receipt:', receipt.explorerUrl);