Education
CFU/mL Calculator (Colony Forming Units)
Colony count → CFU/mL with dilution factor and plate volume, plus 30–300 range TNTC/TFTC interpretation. Educational use only.
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/cfu-calculator' \
-H 'Content-Type: application/json' \
-d '{"colonies":142,"dilutionExponent":6,"platedVolumeMl":0.1,"sampleVolumeMl":0,"decimalPlaces":2}'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/cfu-calculatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| colonies | number | Yes | Colonies on the plate after incubation. |
| dilutionExponent | number | Yes | n such that the plate was seeded from the 10⁻ⁿ dilution tube. |
| platedVolumeMl | number | Yes | Volume of diluent spread on the plate (0.1 mL = 100 µL is typical). |
| sampleVolumeMl | number | No | Optional original culture volume, for total CFU in the sample. |
| decimalPlaces | number |
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-cfu-calculator": {
"name": "cfu-calculator",
"description": "Colony count → CFU/mL with dilution factor and plate volume, plus 30–300 range TNTC/TFTC interpretation. Educational use only.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=cfu-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": "cfu-calculator",
"arguments": {
"colonies": 142,
"dilutionExponent": 6,
"platedVolumeMl": 0.1,
"sampleVolumeMl": 0,
"decimalPlaces": 2
}
}
}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]