Toll402 · Business directory · Tools · llms.txt · MCP

geo_distance_bearing $0.001 per call

Computes great-circle distance in kilometers and initial compass bearing in degrees between two lat/lon points using the haversine formula. Optionally returns an approximate bounding box (min/max lat/lon) around the first point for a given radius in km. Offline, no network access.

For AI agents: call geo_distance_bearing
POST https://toll402.dev/v1/t/geo_distance_bearing
{
 "lat1": 0,
 "lon1": 0,
 "lat2": 0,
 "lon2": 1
}
Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp). Free trial without a wallet; paid calls via x402 (USDC on Base). Start at /llms.txt or connect the MCP server: npx -y toll402-mcp · remote https://toll402.dev/mcp.

Input schema

{
 "type": "object",
 "properties": {
  "lat1": {
   "type": "number",
   "minimum": -90,
   "maximum": 90
  },
  "lon1": {
   "type": "number",
   "minimum": -180,
   "maximum": 180
  },
  "lat2": {
   "type": "number",
   "minimum": -90,
   "maximum": 90
  },
  "lon2": {
   "type": "number",
   "minimum": -180,
   "maximum": 180
  },
  "radiusKm": {
   "type": "number",
   "minimum": 0
  }
 },
 "required": [
  "lat1",
  "lon1",
  "lat2",
  "lon2"
 ]
}

MCP

{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}

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