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Delx Commerce — EVM Chain ID Hex Normalizer
x402
Delx Commerce — EVM Chain ID Hex Normalizer 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).
Converts an EVM chain ID (in any format) to its canonical hex and decimal representations in a single in-memory, stateless computation.
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 the normalized chain ID in both hex (0x-prefixed) and decimal forms, plus an evidence block confirming no data was retained and no external calls were made, along with a pass/fail status and schema identifier.
Example use cases
Pre-flight EVM transaction formatting
“Before I submit this transaction to Base mainnet, normalize chain ID 8453 to its 0x-prefixed hex format for me.”
Multi-chain wallet chain validation
“My wallet just received chain ID '137' as a plain decimal — can you convert it to the canonical hex format Polygon uses in EVM calls?”
Cross-chain agent routing
“I need the hex chain ID for Ethereum mainnet (chain ID 1) so my agent can correctly route the next EVM RPC request.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/evm-chain-id-hex-normalize?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, stateless, verifiable conversion of an EVM chain ID to its canonical hex representation with cryptographic evidence of no data retention — ideal for privacy-sensitive agent pipelines or pre-flight EVM transaction validation where auditability matters. Prefer over a local utility when you need the evidence receipt or are already operating within the Delx x402 micropayment flow.
Side effects
- Invalid or non-numeric chain_id string returns an error or unexpected result
- chain_id exceeding 8192 characters may be rejected
- Malformed input (empty string, null) may cause a 400 or processing error
- Payment failure via x402 (insufficient USDC balance) blocks the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain_id | string | Chain Id supplied to EVM Chain Id Hex Normalize; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"hex": "0x2105",
"decimal": 8453
},
"schema": "delx/util-evm-chain-id-hex-normalize/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "be323df1e1cdb84b28aeaec9e86e6786c27277b63126d7361e444f5d6fce0979",
"external_calls": 0
},
"operation": "evm_preflight:evm_chain_id_hex_normalize"
}
}Tags
x402
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