# Halowerk Ernte Produce Trend

> Halowerk Ernte Produce Trend is a paid API for AI agents from ernte.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns BLE weekly wholesale price series and matched-quote week-on-week changes for a named fresh produce product over a configurable number of weeks

## Facts

- Endpoint: POST https://ernte.halowerk.com/v1/produce-trend?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-ernte-produce-trend-6aa16efe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qvuaYkUkSYUCgvkLReYeD

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 halowerk-ernte-produce-trend-6aa16efe -d '<json body>'
```

Example prompt: Pull the BLE weekly wholesale price series for Schlangengurken over the last 12 weeks and show me the matched-quote changes — I want to see both the EUR/100 pieces breakdown by piece group and how prices have shifted week on week.

## When to prefer this

Use this endpoint when you need structured weekly time-series wholesale price data for fresh produce sourced directly from BLE German market reports, especially when matched-quote changes and piece-group granularity matter. Prefer it over generic commodity price APIs when you need German wholesale market specificity, EUR denomination, and week-on-week comparable changes rather than spot prices or futures.

## Known failure modes

- Product name not recognised in BLE wholesale taxonomy — returns empty or error response
- Weeks parameter out of range (must be 4–26) — validation error
- Origin string does not match any quoted origin in the BLE data — returns empty series
- Insufficient historical data for the requested week count — partial series returned
- Network or payment failure — 402 or 5xx error

## How this service works

BLE weekly wholesale series and matched-quote changes. Example: product Schlangengurken, weeks 12. Net EUR/100 pieces for the named piece groups and net EUR/100 kg otherwise. Mixed groups have separate series; no conversion without documented piece weight.

## Output

A time series of weekly BLE wholesale price observations for the requested produce product covering the specified number of weeks, including net EUR prices (EUR/100 pieces for named piece groups, EUR/100 kg otherwise), matched-quote week-on-week price changes, and separate series for mixed piece groups. No unit conversion between piece-based and weight-based pricing is applied without documented piece weight.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "weeks": {
   "type": "integer",
   "default": 12,
   "maximum": 26,
   "minimum": 4
  },
  "origin": {
   "type": "string",
   "maxLength": 40
  },
  "product": {
   "type": "string",
   "maxLength": 60,
   "minLength": 3
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-ernte-produce-trend-6aa16efe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ernte.halowerk.com](https://www.zero.xyz/host/ernte.halowerk.com/llms.txt)