Fix wallet transaction invalid error, add real multi-token trading, marketplace fork, and dashboard PnL charts

[Copilot]

Transaction failures ("Invalid error") when running paid agents stemmed from a hardcoded TESTNET network passphrase and a race condition where the server verified the tx before Horizon indexed it. The trading page used fake price data and only supported XLM.

Critical Fixes

PaymentModal — transaction invalid error

• Was hardcoding StellarSdk.Networks.TESTNET; now reads NEXT_PUBLIC_STELLAR_NETWORK to pick mainnet/testnet passphrase at runtime
• Added confirming step: polls Horizon until the tx appears on-ledger before handing the hash to the agent run route — eliminates the "Transaction not found" verification failure
• Extracts response.data.extras.result_codes from Stellar errors for actionable messages instead of String(err)
• Shows Stellar Expert explorer link after successful payment

verifyPaymentTransaction — server-side retry

• Added 6-attempt polling loop (3 s intervals) so the run route can find the tx even under brief Horizon propagation lag

Trading Page

• Real-time prices for 8 pairs (XLM, BTC, ETH, SOL, BNB, XRP, USDT, USDC) via CoinGecko free API (60 s refresh); falls back to static prices when rate-limited
• Token pair selector with live 24 h % change badges
• Real Freighter wallet XLM balance displayed in header and order panel
• Volume bar chart below price chart
• 4 new agent templates: MEV Scanner, Mempool Monitor, Liquidity & Slippage Tracker, Multi-Token Arbitrage
• Category filter for agent templates (strategy / arbitrage / mev / monitor)

Marketplace

• Loads agents from /api/agents/list dynamically instead of hardcoded static arrays
• ForkModal: pays the agent owner's fork fee in XLM via Freighter signature, then lets the user customise the agent name and system prompt

Dashboard

• Cumulative PnL area chart built from earnings array in the analytics API
• Request type pie chart: paid vs free breakdown
• XLM → USD conversion using live CoinGecko XLM price
• Refresh interval tightened to 10 s; last-fetched timestamp shown

// Before — hardcoded, breaks on mainnet or when tx not yet indexed
const networkPassphrase = StellarSdk.Networks.TESTNET;
const tx = await server.transactions().transaction(txHash).call(); // throws 404

// After — dynamic network + retry
const networkPassphrase = isMainnet ? StellarSdk.Networks.PUBLIC : StellarSdk.Networks.TESTNET;
// server polls up to 6× before giving up
for (let attempt = 0; attempt < 6; attempt++) {
  try { tx = await server.transactions().transaction(txHash).call(); break; }
  catch { await new Promise(r => setTimeout(r, 3_000)); }
}

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Project	Deployment	Actions	Updated (UTC)
0x402-pubsub	Ready	Preview, Comment	Mar 30, 2026 1:37am