Math & Numbers
Compute observed frequency and frequency shift for a moving source and/or observer
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/doppler-effect-calculator' \
-H 'Content-Type: application/json' \
-d '{"sourceFreq":700,"mediumPreset":"air","waveSpeed":343,"sourceMotion":"approaching","sourceSpeed":30,"observerMotion":"stationary","observerSpeed":0}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/doppler-effect-calculator| Name | Type | Required | Description |
|---|---|---|---|
| sourceFreq | number | Yes | — |
| mediumPreset | select | No | — |
| waveSpeed | number | No | — |
| sourceMotion | select | No | — |
| sourceSpeed | number | No | — |
| observerMotion |
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-doppler-effect-calculator": {
"name": "doppler-effect-calculator",
"description": "Compute observed frequency and frequency shift for a moving source and/or observer",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=doppler-effect-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "doppler-effect-calculator",
"arguments": {
"sourceFreq": 700,
"mediumPreset": "air",
"waveSpeed": 343,
"sourceMotion": "approaching",
"sourceSpeed": 30,
"observerMotion": "stationary",
"observerSpeed": 0
}
}
}Questions or issues? Contact [email protected]
| select |
| No |
| — |
| observerSpeed | number | No | — |
HTML result
{
"result": "<div>Processed HTML content</div>",
"error": "Error message (optional)",
"message": "Notification message (optional)",
"metadata": {
"key": "value"
}
}