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Base Wallet USDC Readiness Check
x402
Base Wallet USDC Readiness Check is a paid API for AI agents from x402-wallet-readiness-service.vercel.app, paid per call via x402, $2/call, status unknown (last checked 2026-09-13).
Checks whether a Base network EVM wallet address is ready to receive USDC payments by returning balance, transaction history, and contract status.
Price / call$2
Success—
StatusUnknown
How this service works
Checks Base wallets for USDC receiving readiness, publishes paid x402 data APIs, and sells fixed-price agent payment, developer-tool, VPS, wallet-risk, and QA implementation work.
Output
Returns a JSON object with the wallet address, network (base), a boolean indicating if it's a contract, the number of token transfers, total transaction count, native ETH balance, and native USDC balance.
Example use cases
Example prompt
“Can you check if the Base wallet 0x820a7bf90d944bb26bfD9b62Ab172Fc3A0829cB9 is ready to receive USDC — tell me its USDC balance, ETH balance, transaction count, and whether it's a contract?”
Technical details
Endpoint
GEThttps://x402-wallet-readiness-service.vercel.app/api/readinessWhen to prefer
Use this endpoint when you need to verify that a Base network wallet is funded and capable of receiving USDC before initiating an x402 payment or agent-to-agent transaction. Ideal for pre-flight checks before sending crypto payments to a new or unknown address, or when onboarding a wallet into an automated payment workflow.
Side effects
- Invalid or malformed EVM address (not matching 0x + 40 hex chars) returns validation error
- Payment not provided or insufficient USDC ($2 required) returns 402 Payment Required
- Wallet address not found on Base returns zeroed balances
- Network timeout or Vercel cold start may delay response
- Rate limiting if too many requests are made in quick succession
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"address": "0x820a7bf90d944bb26bfD9b62Ab172Fc3A0829cB9",
"network": "base",
"is_contract": false,
"token_transfers": 0,
"transaction_count": 0,
"native_eth_balance": "0",
"native_usdc_balance": "0"
}
}Tags
x402
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