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Delx Commerce — Transaction Hash Format Validator
x402
Delx Commerce — Transaction Hash Format Validator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Validates whether a given string is a correctly formatted 0x-prefixed 32-byte Ethereum/EVM transaction hash
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with a 'valid' boolean indicating whether the input string conforms to the 0x-prefixed 32-byte transaction hash format, and a 'schema' field identifying the validator version (e.g. 'delx/util-tx-hash-format-check/v1').
Example use cases
Pre-flight validation in blockchain workflow
“Before I go ahead and query the blockchain explorer, can you verify that this hash is properly formatted as a 32-byte 0x-prefixed tx hash: 0xabc123def456...?”
Catching bad input from user submission
“A user just submitted this transaction hash in my app — can you check if it's actually valid format before I try to look it up on-chain: 0x000000000000000000000000000000000000000000000000000000000000dead?”
Debugging a failed transaction lookup
“I'm getting errors when I try to fetch this transaction and I think the hash might be malformed — can you tell me if 0xdeadbeef is a valid tx hash format?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/tx-hash-format-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap ($0.001 USDC), no-signup check to confirm a transaction hash string is correctly formatted before passing it downstream to more expensive blockchain queries, explorers, or smart contract calls. It is ideal for input sanitization in automated agent workflows handling user-submitted or externally sourced transaction identifiers.
Side effects
- Missing or empty tx_hash field returns a validation failure or error response
- Non-string input may cause a 400 error
- Hash without 0x prefix will return valid: false
- Hash of wrong byte length (not 32 bytes / 64 hex chars) will return valid: false
- Network timeout or service unavailability returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tx_hash | string | 0x-prefixed 32-byte tx hash |
Output
Schema · Response
{
"type": "json",
"example": {
"valid": true,
"schema": "delx/util-tx-hash-format-check/v1"
}
}Tags
x402
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