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💰 Top Up API Balance

Add balance to your API key. Pay with credit card or USDC.

API Key
Enter your key below
Current Balance
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Choose Payment Method

💳 Credit Card

Credit card payments coming soon. Use x402 (USDC on Base) for now.

⚡ USDC on Base (x402 Protocol)

Pay directly with USDC on Base chain. Zero friction for crypto-native users.

Every API endpoint accepts x402 payment headers automatically. No top-up needed — just include payment with each request. 

# x402 payment is automatic with the SDK
pip install x402
# See getting-started guide for full setup

📧 Manual Top-Up

Send USDC to our wallet on Base chain with your API key prefix in the transaction memo:

Wallet: 0xf59621FC406D266e18f314Ae18eF0a33b8401004
Network: Base (Chain ID: 8453)
Token: USDC
Memo: your API key prefix (e.g., ak_0159f1e...)

After sending, email [email protected] with your tx hash and API key prefix. Balance credited within 24h.

Don't have an API key? Sign up instantly — free $0.10 seed balance, no wallet needed.