Live on Base Sepolia — paying real USDC

x402 Services
by KyvernLabs

Production APIs that agents pay for with USDC via x402. Every payment tracked through our own Pulse dashboard.

Price Oracle

$0.001 USDC per call

Live

Real-time crypto prices for AI agents. Returns price, 24h change, market cap, and volume for BTC, ETH, SOL, USDC, and 6+ more tokens.

Endpoint
GETkyvernlabs.com/api/x402/oracle?token=ETH
Parameters
tokenstringToken symbol: BTC, ETH, SOL, USDC, MATIC, AVAX, ARB, OP, LINK
Example Response
{
  "token": "ETH",
  "price_usd": 3245.67,
  "change_24h_pct": 2.14,
  "market_cap_usd": 389000000000,
  "volume_24h_usd": 12400000000,
  "timestamp": "2026-04-03T...",
  "powered_by": "x402"
}
Tracked via withPulse() middlewareVerify on BaseScan

Agent Reputation

$0.01 USDC per call

Live

On-chain wallet reputation scoring. Checks transaction history, balances, and activity to determine if an agent wallet is trustworthy for x402 payments.

Endpoint
GETkyvernlabs.com/api/x402/reputation?address=0x914b67B249bdE528C61fEcC4FC84557BC7Eff33F
Parameters
addressstringWallet address to analyze (0x...)
Example Response
{
  "address": "0x914b...f33F",
  "reputation_score": 75,
  "tier": "good",
  "on_chain": {
    "transaction_count": 42,
    "eth_balance": 0.05,
    "usdc_balance": 19.5
  },
  "analysis": {
    "has_funds": true,
    "is_active": true,
    "can_pay_x402": true
  },
  "powered_by": "x402"
}
Tracked via withPulse() middlewareVerify on BaseScan

Build your own x402 service

Wrap any API with x402 payments + Pulse analytics in one line of code.

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