# Halowerk Karte Accessible Venue Search

> Halowerk Karte Accessible Venue Search is a paid API for AI agents from karte.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Searches OpenStreetMap for venues of a specified type near a coordinate and returns granular accessibility facts including step-free entrance, accessible toilet, lift, designated parking, entrance width, and step count.

## Facts

- Endpoint: POST https://karte.halowerk.com/v1/accessible-venue
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-karte-accessible-venue-search-a6cf7f9f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eO32qN_fc793hQmNuNshH

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-karte-accessible-venue-search-a6cf7f9f -d '<json body>'
```

Example prompt: Can you find accessible coffee shops within 500 meters of 52.5200° N, 13.4050° E and tell me which ones have a step-free entrance, accessible toilet, and lift — breaking down each accessibility feature separately?

## When to prefer this

Choose this endpoint when you need granular, fact-separated accessibility information (not just a binary 'accessible yes/no') for venues near a specific coordinate. It is ideal for wheelchair users, carers, event planners, or travel assistants who need to distinguish between step-free entrance, lift access, accessible toilets, and parking independently. Prefer it over generic place-search APIs when OSM accessibility tags are the primary data needed.

## Known failure modes

- Sparse OSM data for the area may result in few or no venues with complete accessibility attributes
- Unknown or unsupported venue type category returns empty results
- Coordinates outside OSM coverage areas return no results
- Very small radius combined with low venue density returns empty list
- Some accessibility fields may be null or absent if not tagged in OSM

## How this service works

Searches OpenStreetMap for venues of a chosen kind near a coordinate and reports accessibility as the separate facts it actually consists of: step-free entrance, accessible toilet, lift, designated parking, plus entrance width and step count where recorded.

## Output

A list of venues matching the requested type near the given coordinate, each with discrete accessibility facts: whether there is a step-free entrance, an accessible toilet, a lift, and designated accessible parking, plus entrance width in meters and step count where recorded in OpenStreetMap data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "lat": {
   "type": "number",
   "maximum": 90,
   "minimum": -90
  },
  "lon": {
   "type": "number",
   "maximum": 180,
   "minimum": -180
  },
  "limit": {
   "type": "integer",
   "default": 50,
   "maximum": 200,
   "minimum": 1
  },
  "require": {
   "type": "array",
   "items": {
    "enum": [
     "entrance",
     "toilet",
     "lift",
     "parking"
    ],
    "type": "string"
   },
   "maxItems": 4,
   "description": "Only venues where these are recorded as yes. Unknowns are excluded and counted separately."
  },
  "radius_km": {
   "type": "number",
   "default": 2,
   "maximum": 20,
   "minimum": 0.1
  },
  "venue_type": {
   "enum": [
    "restaurant",
    "cafe",
    "bar",
    "hotel",
    "museum",
    "pharmacy",
    "doctor",
    "hospital",
    "bank",
    "supermarket",
    "toilets",
    "station",
    "townhall",
    "library",
    "theatre",
    "cinema",
    "any_shop"
   ],
   "type": "string",
   "default": "restaurant"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-karte-accessible-venue-search-a6cf7f9f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from karte.halowerk.com](https://www.zero.xyz/host/karte.halowerk.com/llms.txt)