Delx Commerce — Batch Idempotency Keys

x402

Delx Commerce — Batch Idempotency Keys 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).

Generates deterministic, namespaced idempotency keys in bulk for a batch of items, with no data retention and cryptographic auditability.

Price / call$0.001

Seller volume →—

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 an array of objects each containing a deterministic hex idempotency key and its corresponding index in the input array, along with the SHA-256 hash of the input for auditability, a flag confirming no cryptographic secret was used, and evidence that no data was retained and no external calls were made.

Example use cases

Deduplicating agent task queue

“I have a list of 50 webhook events that might get retried — can you generate a unique idempotency key for each one under the namespace 'webhook-dedup' so I can safely process them without duplicates?”

Batch payment request keying

“Before I submit these 30 payment requests to my processor, generate a deterministic idempotency key for each one under namespace 'payments-batch-2024' so retries don't result in double charges.”

Namespaced operation fingerprinting

“I need stable, collision-resistant keys for each of these 10 data pipeline steps under the namespace 'etl-run-42' — can you compute them in one shot so I can use them for retry tracking?”

Technical details

Endpoint

POSThttps://commerce.delx.ai/api/v1/x402/batch-idempotency-keys?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to generate multiple idempotency keys in a single call without storing data server-side, when auditability via input SHA-256 evidence is required, or when operating in an agent context that pays per-result with no signup overhead. Prefer it over custom hashing logic when you need verifiable, namespace-scoped deterministic keys for batches up to 256 items.

Side effects

Exceeds 256 items in the batch — array capped at maxItems 256
Namespace string exceeds 8192 characters — rejected with validation error
Malformed or non-object items in the array — may produce unexpected keys or errors
Payment failure via x402 — request not processed if USDC payment cannot be settled

Input

Schema · Request body

Field	Type	Description
items	array	Items supplied to Batch Idempotency Keys; used only for this bounded calculation and processed in memory without retention.
namespace	string	Namespace supplied to Batch Idempotency Keys; used only for this bounded calculation and processed in memory without retention.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "result": {
      "keys": [
        {
          "key": "a7b59420f6ae73743bb81f97fe5222c4b3db261381bd9d0d85c9bd08996d04b7",
          "index": 0
        },
        {
          "key": "884e051ec6969bb1bc6dfd28dc6b13d09cab07dc71f656acd2a398e9c5473587",
          "index": 1
        }
      ],
      "cryptographic_secret": false
    },
    "schema": "delx/util-batch-idempotency-keys/v1",
    "status": "pass",
    "evidence": {
      "retained": false,
      "input_sha256": "375be9a5b0dc421b8588d162f162af2105b72820be462c39a74f3ceab5fd0343",
      "external_calls": 0
    },
    "operation": "data_batch:batch_idempotency_keys"
  }
}

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