# Timesheet to Invoice Calculator MCP for AI Agents MCP

> Timesheet to Invoice Calculator turns messy work logs into clean, billable figures. It handles the math of converting shifts, subtracting breaks, and calculating total pay so you can send out accurate invoices without manual double-checking. This MCP is built for freelancers and agencies who need to move from raw timestamps to final payments quickly. It ensures your math is always right, so you can focus on the work instead of the paperwork.

## Overview
- **Category:** productivity
- **Price:** Free
- **Endpoint:** https://edge.vinkius.com/undefined/mcp
- **Tags:** invoicing, timesheet, payroll, billing, automation

## Description

The Timesheet to Invoice Calculator acts as a bridge between your time-tracking data and financial invoicing. It lets you process arrays of work shifts, subtract break durations, and calculate the exact decimal hours worked. You can transform raw timestamps into actionable billing information, including total earned amounts rounded to two decimal places. It also helps ensure all your time blocks are logically sound and allows you to categorize the complexity of your invoicing tasks. Since Vinkius hosts this in their catalog, you can connect it to your existing workflow in seconds. It takes the headache out of payroll and invoicing by ensuring the math is always right. You can focus on the work while your agent handles the arithmetic of getting you paid. Instead of manually calculating every minute of your day or squinting at spreadsheets to see if your hours add up, you just feed the raw data into your AI client. The agent handles the subtraction of lunch breaks, converts those minutes into the decimal format required by most accounting software, and gives you a final number you can trust. It removes the friction of billing for complex projects by providing clear tiers for different types of work. Whether you are a solo contractor or managing a large team, this MCP ensures that the transition from "time spent" to "money earned" is as smooth as possible. You no longer have to worry about whether you've forgotten to account for a coffee break or a quick meeting. The system handles the heavy lifting of temporal logic, letting you move from a messy list of notes to a professional, accurate invoice without the friction of manual arithmetic.

## Tools

### calculate_payment
Calculates the total amount owed based on your work hours and set rates. It's useful for generating final totals for invoices.

### calculate_work_hours
Determines the total time worked by subtracting break durations from your shifts. This helps you get accurate decimal hours for billing.

### get_complexity_tiers
Provides information on different billing tiers based on task difficulty. Use this to categorize different types of work.

### validate_shifts
Checks your time entries for logical errors like end times occurring before start times. This prevents you from sending out broken data.

## Prompt Examples

**Prompt:** 
```
Calculate my total pay for these shifts: [{start: '2024-07-01T09:00:00Z', end: '2024-07-01T17:00:00Z'}] with a 30 minute break at $25 per hour.
```

**Response:** 
```
You worked 7.5 hours and your total earned amount is **$187.50**.
```

**Prompt:** 
```
Check if my shift data is valid: [{start: '2024-07-01T10:00:00Z', end: '2024-07-01T09:00:00Z'}]
```

**Response:** 
```
The shift is **invalid** because the end time occurs before the start time.
```

**Prompt:** 
```
What are the different invoice complexity tiers available?
```

**Response:** 
```
The available tiers are:
- **Simple**: single session, no breaks
- **Standard**: multiple sessions with breaks
- **Complex**: breaks equal to or greater than half the total duration
```

## Capabilities

### Subtract break times
Automatically removes lunch and rest periods from your total shift duration.

### Convert to decimal hours
Turns raw minutes into the decimal format required by most billing software.

### Calculate total payments
Multiplies your worked hours by your set rates to give you a final total.

### Validate shift logic
Checks your logs for errors like end times occurring before start times.

### Categorize complexity
Organizes different types of work into specific billing tiers.

### Round final totals
Ensures all payment amounts are rounded to exactly two decimal places.

## Use Cases

### Freelance billing for a week of coding
A developer has messy start and end times. They ask their agent to calculate the total pay for 40 hours of work at $80/hour with a 30-minute lunch break each day.

### Auditing agency timesheets
A manager needs to find errors in a team's logs. They ask the agent to validate_shifts to find any entries where the end time is listed before the start time.

### Determining project complexity
A consultant wants to know how much to charge for a high-intensity project. They use get_complexity_tiers to see the difference between simple and complex billing categories.

### Batch processing payroll entries
A payroll clerk has a spreadsheet of 50 different shifts. They ask the agent to use calculate_work_hours to get decimal totals for the entire list at once.

## Benefits

- Eliminate manual math errors by using calculate_work_hours to automatically subtract breaks from your total shift time.
- Ensure billing accuracy by using calculate_payment to generate totals rounded to two decimal places every time.
- Prevent embarrassing data entry mistakes with validate_shifts, which catches impossible timestamps before you send an invoice.
- Standardize your billing with get_complexity_tiers to help categorize different types of work into consistent price points.
- Save hours of administrative time by letting your agent batch-process multiple shifts into a single payment summary.

## How It Works

The bottom line is that it turns raw time logs into ready-to-bill payment totals automatically.

1. Provide your AI client with a list of start and end times for your work shifts.
2. Specify your hourly rates and any recurring break durations to subtract.
3. Receive a summarized list of decimal hours and total payment amounts ready for your invoice.

## Frequently Asked Questions

**Can the Timesheet to Invoice Calculator handle multiple breaks?**
Yes, it can subtract various break durations from your shifts to give you a clean total of time worked.

**How does the Timesheet to Invoice Calculator handle decimal hours?**
It automatically converts your minutes into decimal format and rounds the final payment to two decimal places.

**Can I use the Timesheet to Invoice Calculator to check for errors?**
Yes, you can use it to find logical errors in your logs, like when an end time is listed before a start time.

**Does the Timesheet to Invoice Calculator help with different billing rates?**
It can calculate payments based on your specific rates and help categorize your work into different complexity tiers.

**Is the Timesheet to Invoice Calculator good for payroll?**
It's great for payroll because it turns raw time entries into the exact payment amounts you need to process.

**How do I use the Timesheet to Invoice Calculator with my AI?**
You just provide your shift data to your AI client and ask it to calculate the hours or payments for you.

**How does the tool handle breaks?**
The `calculate_work_hours` tool accepts a `breakMinutes` parameter which is subtracted from the total duration of all shifts to provide net worked hours.

**Can I validate my shift data before calculating payment?**
Yes, you can use the `validate_shifts` tool to check for logical errors, such as end times occurring before start times.

**What format should the shifts be in?**
Shifts should be provided as a JSON string containing an array of objects, each with 'start' and 'end' ISO timestamps.