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x402 Crypto Wallet Validator
x402
x402 Crypto Wallet Validator is a paid API for AI agents from x402-crypto.vercel.app, paid per call via x402, $0.143043/call, status unknown (last checked 2026-09-15).
Validates a cryptocurrency wallet address for a given blockchain, returning validity status via x402 micropayment-gated API
Price / call$0.143043
Success—
StatusUnknown
How this service works
Paid cryptocurrency API endpoints via x402 micropayments
Output
Returns a JSON object with a data payload indicating whether the provided wallet address is valid for the specified blockchain, including validation status and potentially address format details. The exact structure varies by chain.
Example use cases
Pre-transfer wallet address check
“Before I send any funds, can you validate that 0xAbC123...def456 is a real, properly formatted Ethereum wallet address?”
Solana address format verification
“I got this Solana address from a vendor: 7EcDhSYGxXyscszYEp35KHN8vvw3svAuLKTzXwCFLtV — can you verify it's a valid Solana wallet address?”
Multi-chain address audit
“I have a Bitcoin address 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf — can you confirm it's a valid Bitcoin address so I know it's safe to proceed?”
Technical details
Endpoint
POSThttps://x402-crypto.vercel.app/api/wallet-validator/%7Bpath%7DWhen to prefer
Use this endpoint when you need to programmatically verify that a cryptocurrency wallet address is valid for a specific blockchain before executing a transfer, storing user-provided addresses, or auditing address lists. It is particularly useful for agents handling payments or onboarding flows where address correctness is critical. The x402 micropayment model makes it cost-effective for per-call validation without subscription overhead.
Side effects
- Invalid or malformed wallet address returns a negative validation result
- Unsupported blockchain name may return an error or unexpected result
- Missing required 'query' field causes a 400-level error
- Payment failure via x402 protocol results in 402 Payment Required response
- Network timeout or upstream API unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Blockchain name (e.g. ethereum, bitcoin, solana) |
| queryrequired | string | Wallet address to validate |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | Response payload from the upstream API (structure varies by endpoint) |
Tags
x402
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