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EVM Address Normalize
x402
EVM Address Normalize 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).
Lowercase-normalizes an Ethereum/EVM address string and returns a validity flag, without EIP-55 checksum processing.
Price / call$0.001
Success—
StatusUnknown
How this service works
Lowercase-normalize EVM address shape without EIP-55 checksum work. Call when deduping addresses from mixed-case sources before storage or compare. Returns normalized lowercase address plus validity flag as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Output
Returns a deterministic JSON object containing the normalized lowercase EVM address and a boolean validity flag indicating whether the input conforms to a valid EVM address format. No RPC calls or external lookups are made.
Example use cases
Deduplicating mixed-case wallet addresses
“I'm merging wallet address lists from two different sources and some addresses are checksummed (EIP-55) while others are already lowercase — can you normalize all of them to lowercase so I can safely deduplicate before storing?”
Pre-storage address sanitization pipeline
“Before I insert this Ethereum address into my database, normalize it to lowercase and confirm it's a valid EVM address format: 0xAbCd1234AbCd1234AbCd1234AbCd1234AbCd1234”
Validating user-submitted wallet addresses
“A user just submitted this wallet address on my form — can you check if it's a valid EVM address and give me the normalized lowercase version so I can compare it consistently: 0xdAC17F958D2ee523a2206206994597C13D831ec7”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/address-normalizeWhen to prefer
Choose this endpoint when you need fast, deterministic, local normalization of EVM addresses without any blockchain RPC calls, live data, or API key setup. It is ideal for preprocessing pipelines that must deduplicate or compare wallet addresses from mixed-case sources before storage. Prefer it over full EIP-55 checksum validation endpoints when you only need lowercase normalization and a validity flag, and cost-sensitivity matters ($0.001 USDC per call).
Side effects
- Malformed or non-hex input address returns invalid validity flag
- Missing 0x prefix may affect parsing depending on implementation
- Address with incorrect length (not 20 bytes / 42 chars including 0x) flagged as invalid
- Payment failure via x402 protocol results in no response
- Network timeout on POST request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | Input field: address. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"schema": "delx/util-address-normalize/v1",
"address": "0xabcdef0000000000000000000000000000000001"
}
}Tags
x402
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