# US Pre-judgment Interest Calculator MCP for AI Agents AI Agent Connect

> US Pre-judgment Interest Calculator lets your AI client find and calculate the exact legal interest rates required by state statutes. It handles everything from identifying the correct state-specific rules to crunching the numbers on accrued debt based on default dates.

## Overview
- **Category:** finance
- **Price:** Free
- **Endpoint:** https://edge.vinkius.com/vk_preview_LvyVp0L7QvLxQnDEjqWh9yOMMlQhnBTydFATj55n/ai-agent-connect
- **Tags:** interest, calculator, us-law, statutory, finance-tool

## Description

When you're dealing with litigation, calculating pre-judgment interest isn't just a math problem; it's a legal research task. Every state has its own rules on whether interest is simple or compound, and the rates change constantly. This Connector handles the heavy lifting by giving your AI client a direct line to state-specific statutes. Instead of manually looking up a New York or California code and then trying to figure out the day count between a default date and today, you can just ask the agent to do it. It handles the date arithmetic and applies the correct legal logic automatically. By using this through the Vinkius catalog, you get a reliable way to ensure your debt calculations actually hold up under legal scrutiny. It turns a multi-step research and math process into a single prompt. For example, if you need to know the current rules for Texas or New York, the agent pulls the exact details from the statute. This means you don't have to worry about outdated info or misinterpreting a complex legal paragraph. Whether you're preparing a demand letter or a formal court filing, having the correct pre-judgment interest figure is vital. It removes the headache of manual cross-referencing and ensures your numbers are based on the current legal reality of each jurisdiction.

## Tools

### calculate_accumulated_interest
Calculates the total interest accrued on a debt. It uses the specific rules for the state to give you a final amount.

### get_state_statute_details
Pulls the legal interest rules for a specific state. This ensures the AI knows if the state uses simple or compound interest.

### list_supported_jurisdictions
Lists every US state currently supported by the tool. Use this to see which states you can run calculations for.

## Prompt Examples

**Prompt:** 
```
What is the legal interest rate for California?
```

**Response:** 
```
The annual statutory interest rate for California is **7%**. It uses the **Simple interest** calculation method.
```

**Prompt:** 
```
Calculate interest for a $10,000 debt in New York that defaulted on 2023-01-01, as of 2024-01-01.
```

**Response:** 
```
**$900.00** in total interest has accrued over 365 days. (Based on New York statutory rules).
```

**Prompt:** 
```
Which states can I check for interest rates?
```

**Response:** 
```
You can check the following supported jurisdictions:

* **California**
* **New York**
* **Texas**
```

## Capabilities

### Identify state-specific interest rules
The agent pulls the current legal requirements for simple or compound interest for any supported US state.

### Calculate total interest on a debt
It calculates the full amount of interest accrued based on a specific debt amount and default date.

### List all supported US states
You can quickly see which jurisdictions the tool currently covers.

### Determine simple or compound rates
It automatically applies the correct interest type required by state law.

### Calculate days elapsed between dates
The agent handles the precise date arithmetic between a default date and a reference date.

## Use Cases

### Verifying interest for a New York filing
A paralegal asks the agent to check New York's rules and calculate the interest from a 2022 default date. The agent uses get_state_statute_details and calculate_accumulated_interest to provide the total.

### Checking state coverage for debt collection
A debt collector wants to see which states they can bill interest for. The agent uses list_supported_jurisdictions to provide a clear list for the collector's records.

### Confirming California's interest type
A lawyer needs to know if California uses simple or compound interest. The agent calls get_state_statute_details and reports the 7% simple interest rate.

### Auditing a multi-state loan portfolio
A finance pro asks the agent to calculate the total interest for five different debts in five different states, and the agent handles all the state-specific logic.

## Benefits

- Stop cross-referencing state codes manually because get_state_statute_details pulls the correct rules for you.
- Eliminate math errors in litigation filings by using calculate_accumulated_interest for precise totals.
- Quickly see which states are covered by using list_supported_jurisdictions to check your coverage.
- Get consistent results across different states like California, New York, and Texas without hunting for new rules.
- Save hours of research by letting your agent handle complex date arithmetic and statutory logic in one go.

## How It Works

The bottom line is you get accurate, state-compliant interest totals without doing the manual research or math yourself.

1. Tell your AI client which state and debt amount you're looking at.
2. The agent checks the specific legal rules for that jurisdiction.
3. You get the total accrued interest amount based on the default date.

## Frequently Asked Questions

**Can the US Pre-judgment Interest Calculator handle different states?**
Yes, it supports multiple US jurisdictions. You can ask your AI client to check the specific rules for states like California, New York, or Texas to get accurate results.

**Does the US Pre-judgment Interest Calculator do simple or compound interest?**
It handles both, depending on what the law requires. The Connector looks up the specific state statute to determine which method you need to use.

**How does the US Pre-judgment Interest Calculator handle date math?**
It automatically calculates the number of days between the default date and your reference date. This ensures the interest amount is precise based on the actual time elapsed.

**Is the US Pre-judgment Interest Calculator for personal loans?**
It's primarily designed for statutory interest, which is what the law requires for debts. For private contracts with custom rates, a regular calculator is usually better.

**Can I use the US Pre-judgment Interest Calculator for legal filings?**
Yes, that's a primary use case. It helps you get the correct figures for litigation and debt recovery by following state-specific legal rules.

**How do I know which states are supported?**
You can use the `list_supported_jurisdictions` tool to retrieve a complete list of all US states currently implemented in the calculator.

**Does the calculation support compound interest?**
Yes, the engine applies either Simple or Compound interest based on the specific statute of the state provided. For example, Texas uses Compound interest.

**What inputs are required for calculating interest?**
To use `calculate_accumulated_interest`, you must provide the debt amount, the default date (ISO 8601), a reference date (ISO 8601), and the name of the US state.