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Delx EVM Address Zero Check
x402
Delx EVM Address Zero Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Checks whether a given EVM address is the zero address (0x0000000000000000000000000000000000000000)
Price / call$0.001
Success—
StatusUnknown
How this service works
EVM Address Zero Check: EVM Address Zero Check detects the all-zero EVM address after shape normalization from bounded caller-supplied values without an external provider. Call EVM Address Zero Check before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Address Zero Check as versioned deterministic JSON. Price: $0.001 US…
Output
Returns a JSON object with the input address echoed back, a boolean is_zero field indicating whether it matches the EVM zero address, the operation name, a status of 'advisory', and an evidence block confirming no data was retained and no external calls were made.
Example use cases
Preflight check before token transfer
“Before executing this EVM transfer, verify that the destination address 0x0000000000000000000000000000000000000000 is not the zero address — block it if it is.”
Smart contract deployment guard
“I'm about to deploy a contract that takes an owner address as a constructor argument — check if 0xdEAD000000000000000042069420694206942069 is the zero address so I can reject it early.”
DeFi agent wallet validation
“My DeFi agent just scraped a recipient address from an onchain event: 0x0000000000000000000000000000000000000000 — can you confirm whether this is the null/zero address before we proceed?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/evm-address-zero-checkWhen to prefer
Use this endpoint when you need a lightweight, auditable, no-retention preflight check to detect the EVM zero address before executing a token transfer, contract deployment, or any EVM transaction. Prefer it over client-side string comparison when you need a verifiable evidence trail (input hash, no external calls) or when operating in a governed agent workflow where all operations should be logged and receipted.
Side effects
- Missing or malformed address field returns a validation error
- Address string exceeding 8192 characters is rejected
- Non-EVM address formats (e.g. Bitcoin, Solana) may return unexpected results
- Network errors or API downtime return a 5xx response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | Address supplied to EVM Address Zero Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"address": "0x0000000000000000000000000000000000000000",
"is_zero": true
},
"schema": "delx/util-evm-address-zero-check/v1",
"status": "advisory",
"evidence": {
"retained": false,
"input_sha256": "fb35427cc7fc026be258e32964fdad1d9b726d346965a22055b1d3d8ddb25f51",
"external_calls": 0
},
"operation": "evm_preflight:evm_address_zero_check"
}
}Tags
x402
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