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QuantaFlow Overpass API Gateway (x402)
x402
QuantaFlow Overpass API Gateway (x402) is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).
Proxies POST requests to the OpenStreetMap Overpass API via a micropayment-gated x402 gateway, returning geospatial and map data.
Price / call$0.01
Success—
StatusUnknown
How this service works
Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.
Output
The raw upstream Overpass API response body (typically GeoJSON, OSM XML, or JSON depending on the query output format), along with the content-type header, passed through after the $0.01 USDC x402 micropayment is processed.
Example use cases
Find nearby amenities for trip planning
“Use the Overpass gateway to find all hospitals within 2km of latitude 51.5074, longitude -0.1278 in London — give me the name and coordinates of each one.”
Extract road network for routing analysis
“Query OpenStreetMap via the Overpass gateway to get all primary and secondary roads inside the bounding box 48.85,2.34,48.87,2.36 in Paris so I can analyze the street network.”
Locate public transport stops in a city
“Pull all bus stops and metro stations in Berlin using an Overpass QL query through the QuantaFlow gateway — I need their names and positions for a transit coverage map.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/overpassWhen to prefer
Choose this endpoint when you need programmatic access to OpenStreetMap geographic data via Overpass QL and want to pay per-query with USDC micropayments rather than manage API keys or subscriptions. Ideal for AI agents operating in web3 contexts where x402 payment rails are already integrated.
Side effects
- Invalid Overpass QL syntax returns upstream query error
- Bounding box too large causes Overpass timeout or rate-limit rejection
- Payment failure or insufficient USDC balance blocks the request with 402 response
- Malformed JSON body results in forwarding error
- Overpass server overload returns 429 or 504 from upstream
- Path not pointing to valid Overpass endpoint returns 404
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| body | string | Optional JSON body forwarded to POST requests. |
| path | string | Path below the selected upstream origin. |
| query | object | |
| method | string |
Output
Schema · Response
{
"description": "The upstream response body and content type are passed through after successful payment."
}Tags
x402
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