# Batch Concurrency Plan

> Batch Concurrency Plan is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-20).

Calculates batch wave plans by dividing an item count across a bounded concurrency level, returning wave counts and normalized batch parameters as versioned deterministic JSON.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/batch-concurrency-plan?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/batch-concurrency-plan-35793edf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yuFu7J65mK6bPZHQW1Y-_

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 batch-concurrency-plan-35793edf -d '<json body>'
```

Example prompt: Calculate a batch concurrency plan for 500 items with a concurrency of 20 — I need to know how many waves that produces before I hand the plan off downstream.

## When to prefer this

Use this endpoint when an agent needs a deterministic, versioned batch wave calculation before handing a structured plan to a downstream tool with a strict contract. Prefer it over manual math when the result must be normalized, bounded, and carry a versioned contract for auditability. Ideal for pipeline orchestration steps where concurrency limits are known ahead of time.

## Known failure modes

- Non-integer or missing item_count returns a validation error
- Non-integer or missing concurrency returns a validation error
- Zero or negative concurrency may produce a division error or boundary rejection
- Concurrency larger than item_count may return a single-wave result or boundary-clamped output
- Payment failure via x402 protocol returns 402 before computation occurs

## How this service works

Batch Concurrency Plan: Batch Concurrency Plan calculates batch waves from item count and concurrency from bounded caller-supplied values without an external provider. Call Batch Concurrency Plan before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for Batch Concurrency Plan as versioned deterministic JSON. Price: $0.001 USDC vi…

## Output

Returns a versioned deterministic JSON object containing the calculated number of batch waves, normalized item count and concurrency values, and a versioned result contract — all computed in-memory without data retention.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "item_count": {
   "type": "integer",
   "description": "Item Count supplied to Batch Concurrency Plan; used only for this bounded calculation and processed in memory without retention."
  },
  "concurrency": {
   "type": "integer",
   "description": "Concurrency supplied to Batch Concurrency Plan; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "waves": 13,
   "concurrency": 8,
   "last_wave_size": 4
  },
  "schema": "delx/util-batch-concurrency-plan/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "89a4ecfe352a568bb465bd1e862817436f668a49fd51195c4cde5a572dab4e21",
   "external_calls": 0
  },
  "operation": "data_batch:batch_concurrency_plan"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/batch-concurrency-plan-35793edf/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)