# HALOWERK marktwerk — Exchange Trading Hours Lookup

> HALOWERK marktwerk — Exchange Trading Hours Lookup is a paid API for AI agents from markt.netzhandwerker.de, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Returns whether a given stock exchange is currently open or its trading hours status at a specified instant in time.

## Facts

- Endpoint: POST https://markt.netzhandwerker.de/hours
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-marktwerk-exchange-trading-hours-lookup-e3116e75
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6K7LChs4wguVQs69h2w7Q

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-marktwerk-exchange-trading-hours-lookup-e3116e75 -d '<json body>'
```

Example prompt: Is the Frankfurt Stock Exchange (XETR) open right now, or is it currently outside trading hours?

## When to prefer this

Use this endpoint when you need a programmatic, pay-per-call check of whether a specific major global stock exchange is open at a given moment or historical timestamp. It supports a curated list of major exchanges (XETR, XFRA, XNYS, XNAS, XLON, XPAR, XAMS, XSWX, XTKS, XHKG) and is priced at $0.002 USDC per call via x402 on Base Mainnet, making it suitable for lightweight, on-demand trading-hour checks within automated agent workflows.

## Known failure modes

- Invalid MIC code (not matching the 4-letter pattern or unsupported exchange) returns an error
- Malformed ISO 8601 timestamp causes a validation error
- Payment failure via x402 protocol results in 402 Payment Required response
- Network or service unavailability returns a 5xx error

## How this service works

HALOWERK marktwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.

## Output

A response indicating whether the specified exchange (identified by its 4-letter MIC code) is open or closed at the given timestamp, along with any relevant trading session details such as session type or hours boundaries.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mic": {
   "type": "string",
   "default": "XETR",
   "pattern": "^[A-Za-z]{4}$",
   "description": "Market Identifier Code of the exchange: XETR, XFRA, XNYS, XNAS, XLON, XPAR, XAMS, XSWX, XTKS or XHKG."
  },
  "timestamp": {
   "type": "string",
   "description": "Instant to evaluate, as an ISO 8601 string. Empty or absent means now."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-marktwerk-exchange-trading-hours-lookup-e3116e75/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from markt.netzhandwerker.de](https://www.zero.xyz/host/markt.netzhandwerker.de/llms.txt)