loan_apr
True cost of a loan including fees: the US Truth in Lending APR (Regulation Z actuarial method) and the EU APRC (Consumer Credit Directive annual effective rate), plus the payment, amount financed, finance charge and total of payments for a level-payment loan. Handles origination fees and points ...
This record as markdown: /tools/com-it-scorptech-x402/loan-apr.md
What loan_apr does on ScorpTech x402 API
AI agents call loan_apr to retrieve information from ScorpTech x402 API without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
fees | number | — | Prepaid finance charges (origination, points, broker fees) |
amount | number | Yes | Loan amount (principal before financed fees) |
points | number | — | Discount points as % of the loan amount (added to fees) |
balloon | number | — | Extra amount due with the last payment |
payment | number | — | Use this payment instead of computing it |
ratePct | number | Yes | Nominal annual note rate |
termMonths | integer | Yes | |
feesFinanced | boolean | — | true: fees are added to the loan balance; false: paid upfront / deducted from proceeds |
paymentsPerYear | integer | — |
Parameters from the server's own tool schema.
Why loan_apr is rated Low
Even though loan_apr only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs loan_apr safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ScorpTech x402 API, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For loan_apr, this is the rule to start with:
loan_apr is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every loan_apr call is checked against it from then on.
Questions about loan_apr
True cost of a loan including fees: the US Truth in Lending APR (Regulation Z actuarial method) and the EU APRC (Consumer Credit Directive annual effective rate), plus the payment, amount financed, finance charge and total of payments for a level-payment loan. Handles origination fees and points paid upfront or rolled into the loan, a balloon payment, and weekly to annual payments. Compares the note rate with the real borrowing rate so offers can be ranked. Price: $0.002 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/loan-apr. It is categorised as a Read tool in the ScorpTech x402 API MCP Server, which means it retrieves data without modifying state.
loan_apr accepts 9 parameters: fees, amount, points, balloon, payment, ratePct, termMonths, feesFinanced, paymentsPerYear. Required: amount, ratePct, termMonths. The full parameter table on this page comes from the server's own tool schema.
Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for loan_apr: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ScorpTech x402 API. Nothing to install.
loan_apr is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the loan_apr rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for loan_apr. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
loan_apr is provided by the ScorpTech x402 API MCP server (https://scorptech.it.com/api/x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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