Geography
Midpoint Calculator
Calculate the geographic midpoint between two coordinates on Earth
json· JSON resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/midpoint-calculator' \
-H 'Content-Type: application/json' \
-d '{"lat1":40.7128,"lon1":-74.006,"lat2":51.5074,"lon2":-0.1278,"outputFormat":"decimal","precision":6}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST https://api.elysiatools.com/en/api/tools/midpoint-calculatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| lat1 | number | Yes | — |
| lon1 | number | Yes | — |
| lat2 | number | Yes | — |
| lon2 | number | Yes | — |
| outputFormat | select | No | — |
| precision |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-midpoint-calculator": {
"name": "midpoint-calculator",
"description": "Calculate the geographic midpoint between two coordinates on Earth",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=midpoint-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
tools/list
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
tools/call
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "midpoint-calculator",
"arguments": {
"lat1": 40.7128,
"lon1": -74.006,
"lat2": 51.5074,
"lon2": -0.1278,
"outputFormat": "decimal",
"precision": 6
}
}
}Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).
Questions or issues? Contact [email protected]