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PrepLayer.ai Identifier Validator
x402
PrepLayer.ai Identifier Validator is a paid API for AI agents from api.maximusmediahouse.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Validates and canonicalizes a single identifier (email, URL, phone, IBAN, payment card, UUID, SHA-256, git SHA, EVM address, or domain) and returns its validity, canonical form, and fingerprint.
Price / call$0.002
Success—
StatusUnknown
How this service works
Validate and canonicalize one identifier: email, URL, E.164 phone, IBAN (mod-97), payment card (Luhn), UUID, SHA-256, git SHA, EVM address (EIP-55) or domain. Returns {valid, canonical, fingerprint}.
Output
Returns a JSON object with three fields: 'valid' (boolean indicating whether the identifier passes all format and checksum rules), 'canonical' (the normalized, standardized form of the identifier), and 'fingerprint' (a stable hash or fingerprint of the canonical value for caching and deduplication).
Example use cases
Email validation before outreach
“Before I import this list, check if 'john.doe+newsletter@Gmail.COM' is a valid email and what its canonical form is.”
Ethereum address checksum verification
“I have an EVM wallet address '0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae' — can you verify it passes the EIP-55 checksum and give me the properly cased canonical version?”
IBAN validation for payment processing
“Validate this IBAN for me before we process the transfer: 'GB29 NWBK 6016 1331 9268 19' — is it valid and what's its canonical form?”
Technical details
Endpoint
POSThttps://api.maximusmediahouse.com/v1/validate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, deterministic, rule-based validation with canonicalization — especially for identifiers like IBANs (mod-97), payment cards (Luhn), EVM addresses (EIP-55), or E.164 phones where checksum correctness matters. Prefer it over regex-only validators when you also need the canonical normalized form and a fingerprint for deduplication. It covers 10 distinct identifier types in a single, cheap API call at $0.002.
Side effects
- Invalid 'kind' enum value returns a 400 error
- Value exceeds 512 character limit
- Malformed JSON request body
- Identifier structurally invalid but well-formed input still returns valid:false gracefully
- x402 payment failure if USDC balance insufficient
- Network timeout or 5xx on provider side
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| kind | string | Identifier type. |
| value | string | The identifier to validate (max 512 chars). |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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