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Agent402 Solana Address Validator
x402
Agent402 Solana Address Validator is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Validates whether a string is a well-formed Solana address by checking base58 decoding and 32-byte length — does not verify on-chain account existence.
Price / call$0.001
Success—
StatusUnknown
How this service works
Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.
Output
Returns a JSON object with 'chain' (set to 'sol'), 'valid' (boolean indicating whether the address passes base58 decoding and 32-byte length check), and 'byte_length' (32 if valid). Does not confirm the account exists on-chain.
Example use cases
Pre-transfer address sanity check
“I'm about to send SOL to 'GsbwXfJraMomNxBcjYLcG3mxkBUiyWfA9d3it6Lchanges' — can you confirm that address is valid Solana format before we proceed?”
DeFi agent input sanitization
“Before routing this swap on Solana, verify that the recipient address '5Q544fKrFoe6tsEbD7S8EmxGTJYAKtTVhAW5Q5pge4j1' is a legitimate 32-byte base58 public key.”
Wallet address validation in onboarding flow
“A user just typed in their Solana wallet address as 'not-a-real-address' during onboarding — can you tell me if that's a valid Sol address format?”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/validate/sol-addressWhen to prefer
Use this endpoint when you need a fast, cheap ($0.001) structural check that a Solana address is correctly formatted before using it in a transaction, API call, or display — especially when on-chain RPC calls would be too slow, expensive, or unnecessary. Prefer this over RPC account lookups when you only need format validation, not balance or existence confirmation.
Side effects
- Address string fails base58 decoding — returns valid: false
- Address decodes to wrong byte length (not 32 bytes) — returns valid: false
- Missing 'address' field in request body — likely 400 error
- Ethereum or other chain addresses passed as input will return valid: false
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | Solana address |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "sol",
"valid": true,
"byte_length": 32
}
}Tags
x402
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