# Delx Seeded Priority Order

> Delx Seeded Priority Order is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).

Deterministically reorders a list of tasks using a seed string, producing a reproducible priority ranking without retaining any input data.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/seeded-priority-order?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-seeded-priority-order-9c720144
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1M9B_icK5DZznXIauawZb

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-priority-order-9c720144 -d '<json body>'
```

Example prompt: Prioritize these three tasks — 'send report', 'update database', 'notify team' — using the seed 'sprint-42' so I get a reproducible ranking every time.

## When to prefer this

Choose this endpoint when you need a lightweight, stateless, reproducible ranking of a task list and can provide a deterministic seed. Ideal for agent orchestration loops where consistent task ordering across runs is required without building custom shuffle logic. Prefer over random shufflers when reproducibility is essential, and over full scheduling systems when you only need ordering without dependency resolution.

## Known failure modes

- Seed string exceeds 8192 character limit — request rejected
- Tasks array exceeds 256 items — request rejected
- Individual task string exceeds 8192 characters — request rejected
- Malformed JSON body — 400 error
- Empty tasks array — may return empty result

## How this service works

Seeded Priority Order: Seeded Priority Order orders equal-priority tasks reproducibly from bounded caller-supplied values without an external provider. Call Seeded Priority 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 Priority Order as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, m…

## Output

Returns a JSON object containing the reordered list of tasks under result.items, along with operation metadata including a schema identifier, pass status, and an evidence block confirming no data retention, the SHA-256 of the input, and zero external calls made.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "items": [
    "t3",
    "t2",
    "t1"
   ]
  },
  "schema": "delx/util-seeded-priority-order/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "e3b70de4d8b9747de25bdf3884dd614eef53d486bd32ec4801e12a93ec0f7781",
   "external_calls": 0
  },
  "operation": "seeded_decision:seeded_priority_order"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-seeded-priority-order-9c720144/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)