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Delx Commerce — Blockchain Confirmations Needed Calculator
x402
Delx Commerce — Blockchain Confirmations Needed Calculator 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).
Calculates how many additional block confirmations are needed before a blockchain transaction is considered final, given a target confirmation count and current block heights.
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 required confirmation threshold has been reached (done: true/false), the target number of confirmations, how many confirmations have occurred so far, and how many more are still needed (remaining). Uses schema identifier 'delx/util-confirmations-needed/v1'.
Example use cases
Waiting for deposit to clear
“My deposit transaction landed in block 19800000 and the chain is currently at block 19800004 — I need 10 confirmations before I can proceed. How many more confirmations do I still need?”
DeFi settlement readiness check
“I'm waiting on a DeFi swap to settle — it was mined at block 22100050, the current head is 22100058, and the protocol requires 12 confirmations. Are we there yet, and how many blocks are left?”
Cross-chain bridge transfer monitoring
“A bridge transfer was included in block 20000100, the latest block is 20000107, and we need 15 confirmations for the bridge to release funds. Can you tell me how many confirmations are still remaining?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/confirmations-needed?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call computation to determine blockchain transaction finality without running a full node. Ideal for agents monitoring settlement status in DeFi, bridge, or exchange workflows where you know the transaction block, current head block, and required confirmation threshold. Prefer this over custom RPC calls when you want verifiable, priced delivery with no signup friction via the x402 protocol on Base or Solana.
Side effects
- Missing required fields (target, tx_block, head_block) result in validation errors
- head_block less than tx_block yields nonsensical or negative remaining values
- Non-integer input for block fields causes schema rejection
- Network or payment (x402) failure returns 402 Payment Required if USDC payment is not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| target | integer | Input field: target. |
| tx_block | integer | Input field: tx block. |
| head_block | integer | Input field: head block. |
Output
Schema · Response
{
"type": "json",
"example": {
"done": false,
"schema": "delx/util-confirmations-needed/v1",
"target": 12,
"remaining": 6,
"confirmations": 6
}
}Tags
x402
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