Finance
Student Loan Calculator
Calculate student loan repayment with an optional grace period and subsidized/unsubsidized interest. Unsubsidized loans accrue interest during the grace period that capitalizes into principal; subsidized loans do not. Shows monthly payment, total interest, total repayment, a balance curve, and a yearly breakdown.
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Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/student-loan-calculator' \
-H 'Content-Type: application/json' \
-d '{"loanAmount":30000,"interestRate":5.5,"repaymentYears":10,"graceMonths":6,"interestType":"unsubsidized","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/student-loan-calculatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| loanAmount | number | Yes | — |
| interestRate | number | Yes | — |
| repaymentYears | number | Yes | — |
| graceMonths | number | No | — |
| interestType | select | No | — |
| decimalPlaces |
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-student-loan-calculator": {
"name": "student-loan-calculator",
"description": "Calculate student loan repayment with an optional grace period and subsidized/unsubsidized interest. Unsubsidized loans accrue interest during the grace period that capitalizes into principal; subsidized loans do not. Shows monthly payment, total interest, total repayment, a balance curve, and a yearly breakdown.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=student-loan-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": "student-loan-calculator",
"arguments": {
"loanAmount": 30000,
"interestRate": 5.5,
"repaymentYears": 10,
"graceMonths": 6,
"interestType": "unsubsidized",
"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).