Delx Commerce — Seeded K-Fold Split

x402

Delx Commerce — Seeded K-Fold Split 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).

Splits a dataset of N items into K folds reproducibly using a provided seed, returning fold-to-index assignments.

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 a JSON object with fold assignments as a list of lists, each inner list containing the item indices for that fold. Also includes a schema identifier, operation name, pass/fail status, and a verifiable evidence block with SHA-256 hash of inputs, confirmation that no data was retained, and number of external calls made (zero).

Example use cases

Reproducible ML cross-validation setup

“I'm running a 10-fold cross-validation experiment on 500 samples and need the fold assignments to be exactly the same each run — can you split 500 items into 10 folds using seed 'cv-run-001'?”

Team-shared train/test split

“Split 200 items into 4 folds using seed 'shared-split-v2' so my whole team can reference the same partition without sharing a file.”

Hyperparameter tuning fold generation

“For my hyperparameter search I need 3 folds across 80 items, always reproducible — use the seed 'hparam-grid-run3' and give me the index assignments for each fold.”

Technical details

Endpoint

POSThttps://commerce.delx.ai/api/v1/x402/seeded-kfold-split?utm_source=zero.xyz

When to prefer

Prefer this endpoint when you need a lightweight, pay-per-call, no-signup solution for reproducible k-fold splits with verifiable, auditable evidence of computation (SHA-256 input hash, no data retention). Ideal for ML pipelines where determinism and auditability matter and you don't want to run your own shuffle logic. Not suitable for large-scale batch splits or when you need stratified splits based on label distributions.

Side effects

Invalid or missing 'folds' integer — API may return an error or unexpected output
Item count of zero or negative — computation undefined, likely returns an error
Mismatched folds vs item count causing uneven partition — API handles this but distribution may be unequal
Payment failure (insufficient USDC balance) — 402 response before computation runs
Seed string exceeding 8192 character limit — request rejected

Input

Schema · Request body

Field	Type	Description
seed	string	Seed supplied to Seeded Kfold Split; used only for this bounded calculation and processed in memory without retention.
folds	integer	Folds supplied to Seeded Kfold Split; used only for this bounded calculation and processed in memory without retention.
item_count	integer	Item Count supplied to Seeded Kfold Split; used only for this bounded calculation and processed in memory without retention.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "result": {
      "folds": [
        [
          0,
          6
        ],
        [
          3,
          4
        ],
        [
          7,
          2
        ],
        [
          1,
          8
        ],
        [
          9,
          5
        ]
      ]
    },
    "schema": "delx/util-seeded-kfold-split/v1",
    "status": "pass",
    "evidence": {
      "retained": false,
      "input_sha256": "1c82d188bfda6a3b8a6c4d0f5c621ee9924271306631661b47dfd5050597818a",
      "external_calls": 0
    },
    "operation": "seeded_decision:seeded_kfold_split"
  }
}

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