Education
Enzyme Activity Unit Calculator (U, µmol/min)
Converts product-amount or ΔA/min assay data into enzyme units: 1 U = 1 µmol/min = 16.67 nkat, with Beer–Lambert absorbance conversion and linear-window checks. 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/enzyme-activity-unit' \
-H 'Content-Type: application/json' \
-d '{"mode":"amount","productUmol":6,"timeMin":3,"deltaAPerMin":0.622,"extinctionCoeff":6.22,"pathLength":1,"volumeMl":1,"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/enzyme-activity-unitParameters
| Name | Type | Required | Description |
|---|---|---|---|
| mode | select | Yes | Enter product amount and time, or convert an absorbance slope. |
| productUmol | number | Yes | Product formed during the assay (amount mode). |
| timeMin | number | Yes | Time over which the product accumulated (amount mode). |
| deltaAPerMin | number | Yes | Initial linear slope of the absorbance trace (absorbance mode). |
| extinctionCoeff | number | Yes |
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-enzyme-activity-unit": {
"name": "enzyme-activity-unit",
"description": "Converts product-amount or ΔA/min assay data into enzyme units: 1 U = 1 µmol/min = 16.67 nkat, with Beer–Lambert absorbance conversion and linear-window checks. Educational use only.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=enzyme-activity-unit",
"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": "enzyme-activity-unit",
"arguments": {
"mode": "amount",
"productUmol": 6,
"timeMin": 3,
"deltaAPerMin": 0.622,
"extinctionCoeff": 6.22,
"pathLength": 1,
"volumeMl": 1,
"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]