# HALOWERK kartenwerk

> HALOWERK kartenwerk liefert maschinenlesbare Ergebnisse gegen Zahlung nach x402.
> Netz Base Mainnet, Zahlungsmittel USDC, Empfänger 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E.

## So wird bezahlt

1. Route ohne Zahlungskopf aufrufen. Die Antwort ist 402 und trägt accepts, description und inputSchema.
2. Bedingungen mit einem x402-Client signieren.
3. Aufruf wiederholen, Nachweis im Kopf PAYMENT-SIGNATURE.

Eine 402-Antwort kostet nichts und löst keine Arbeit aus. Scheitert die Arbeit,
trägt die Antwort charged=false und es wird nicht abgerechnet.

## Endpunkte

### POST /v1/tides

Returns tide predictions for a NOAA CO-OPS station: every high and low water in the window with its time and height above datum, the range between them, and which extreme comes next with the time remaining. Where the station also measures, the observed water level is fetched and compared with the prediction — wind and air pressure routinely push the real level away from the astronomical forecast, and that residual is the figure that matters for anyone near a limit, so it is returned rather than left implicit. A coordinate is resolved to the nearest station and the distance is reported, because a station 80 km away describes a different piece of coast. Coverage is United States coasts and territories only: NOAA does not measure the North Sea, the Baltic or the Mediterranean, and for a coordinate outside coverage the answer says so instead of returning a distant station as if it fitted.

- Preis: 0.005 USDC
- MCP-Werkzeug: `tides`
- Eingabe: `["station","latitude","longitude","days","datum","units","include_observed","max_station_distance_km"]`

## Weitere Flächen

- OpenAPI: https://karte.halowerk.com/openapi.json
- Preise: https://karte.halowerk.com/pricing
- x402-Manifest: https://karte.halowerk.com/.well-known/x402
- Bazaar: https://karte.halowerk.com/.well-known/x402/bazaar
- MCP: https://karte.halowerk.com/mcp


## Missing a capability?

If you looked for something this service does not offer, say so.
One call, no payment, no sign-up, no account:

  POST https://bedarf.halowerk.com/capabilities/request
  Content-Type: application/json
  {"requested_capability": "what you would buy",
   "description": "the use case, one sentence",
   "callback_url": "optional - we call back once it exists"}

Only requested_capability is required, 3 to 160 characters.
Schema and status: https://bedarf.halowerk.com/openapi.json
Submissions are held for review and are never published verbatim.