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Delx Commerce — EVM Finality Depth Check
x402
Delx Commerce — EVM Finality Depth Check 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).
Checks whether a transaction included at a given EVM block height has reached finality based on a required confirmation depth
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 indicating whether the transaction is final (boolean), the number of confirmations accumulated (current_block minus inclusion_block), the required confirmation threshold, the operation schema identifier, a pass/fail status, and tamper-evident evidence including the SHA-256 hash of the input and a flag confirming no data was retained externally.
Example use cases
Pre-payment finality check for DeFi agent
“Before I release funds, confirm whether the deposit included at block 21480000 is final — current block is 21480015 and I need 12 confirmations to proceed.”
Bridge transfer confirmation gate
“We're bridging tokens cross-chain and the lock transaction landed at block 19200050. Current block is 19200065. Tell me if we've hit our 10-confirmation finality threshold so we can mint on the destination chain.”
NFT settlement finality verification
“An NFT sale settled at block 20100000. The chain is currently at block 20100008. We require 6 confirmations — is the transaction final yet?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/evm-finality-depth-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs a lightweight, pay-per-call, verifiable finality depth check without setting up infrastructure or signing up for a service. It is ideal for EVM preflight checks in agentic pipelines where tamper-evident evidence (SHA-256 of inputs, no data retention) and a deterministic computation are required. Prefer it over full node queries when you only need a bounded depth calculation and want a receipted, auditable result for $0.001 USDC.
Side effects
- Missing required fields (current_block, inclusion_block, or required_confirmations) result in a validation error
- current_block less than inclusion_block produces a negative depth, likely an error response
- Non-integer input types cause schema validation failure
- Payment failure via x402 (insufficient USDC balance) blocks the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| current_block | integer | Current Block supplied to EVM Finality Depth Check; used only for this bounded calculation and processed in memory without retention. |
| inclusion_block | integer | Inclusion Block supplied to EVM Finality Depth Check; used only for this bounded calculation and processed in memory without retention. |
| required_confirmations | integer | Required Confirmations supplied to EVM Finality Depth Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"final": true,
"confirmations": 13,
"required_confirmations": 10
},
"schema": "delx/util-evm-finality-depth-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "a22f206fc93ec7aa456682a387c45bab6f2594ad1220aa7f26d7561636798f44",
"external_calls": 0
},
"operation": "evm_preflight:evm_finality_depth_check"
}
}Tags
x402
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