# Delx Seeded Batch Order

> Delx Seeded Batch Order is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-21).

Reorders a list of batch IDs deterministically using a seed value, returning a shuffled/ordered sequence without retaining any data.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/seeded-batch-order?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-seeded-batch-order-134815d6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8iWjSO53kdsxMzKbVVapb

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability delx-seeded-batch-order-134815d6 -d '<json body>'
```

Example prompt: Reorder these batch IDs — ['b1','b2','b3','b4'] — using the seed 'run-42' and give me the shuffled sequence back.

## When to prefer this

Use this endpoint when you need a lightweight, stateless, deterministic reordering of a list of batch IDs using a seed — ideal for reproducible shuffle operations in agent workflows where auditability matters (evidenced by SHA-256 hashing) and no external calls or data retention are acceptable. Prefer it over custom shuffle logic when you need guaranteed in-memory-only processing with a verifiable evidence trail.

## Known failure modes

- Invalid or missing seed value returns an error
- Batch IDs array exceeds 256 items limit causing rejection
- Malformed input schema results in a 400-level error
- Seed string exceeds 8192 character limit
- Empty batch_ids array may return an empty result or error

## How this service works

Seeded Batch Order: Seeded Batch Order orders batch identifiers reproducibly for replayable processing from bounded caller-supplied values without an external provider. Call Seeded Batch Order when an agent needs a reproducible decision that another run can independently replay. Returns the deterministic selection plus seed provenance, population bounds, and the operation-specific outcome for Seeded Batch Order as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, s…

## Output

Returns a JSON object containing a 'result.items' array with the input batch IDs reordered according to the seed, along with schema version, operation name, pass/fail status, and evidence metadata including a SHA-256 hash of the input, confirmation that no data was retained, and a count of zero external calls.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "seed": {
   "type": "string",
   "maxLength": 8192,
   "description": "Seed supplied to Seeded Batch Order; used only for this bounded calculation and processed in memory without retention."
  },
  "batch_ids": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 8192
   },
   "maxItems": 256,
   "description": "Batch Ids supplied to Seeded Batch Order; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "items": [
    "b1",
    "b4",
    "b3",
    "b2"
   ]
  },
  "schema": "delx/util-seeded-batch-order/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "75bbf1f9c5ed2b50d258c5b426f75becd0960e6a76e91d048952e456ce4769e9",
   "external_calls": 0
  },
  "operation": "seeded_decision:seeded_batch_order"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-seeded-batch-order-134815d6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)