Marketplace · API · x402

api.duoleads.com/v1/geo/distance

Distance calculator: distance and direction between WGS-84 coordinates: geodesic distance by Vincenty with a haversine fallback, initial and final bearing, the midpoint, and the destination point reached from a start point on a given bearing and distance. Also computes the cumulative length of a supplied coordinate path. Results in metres, kilometres, nautical miles and miles.

Endpoint	`https://api.duoleads.com/v1/geo/distance`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~424 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39
method	GET
last updated	2026-10-27T01:58:12.639Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.duoleads.com/v1/geo/distance
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-373f29f5f714458e

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}