# Party & Event Planner – Bill Split Calculator

> Party & Event Planner – Bill Split Calculator is a paid API for AI agents from party-event-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).

Splits a restaurant or event bill among multiple people with exact-cent tip and tax calculations, supporting tip-on-subtotal or tip-on-total modes and optional round-up to whole dollars.

## Facts

- Endpoint: GET https://party-event-calc.x402tookit.com/bill-split?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/party-event-planner-bill-split-calculator-cf20b16d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PvSh9c-EiYTadH_o9ZD6T

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability party-event-planner-bill-split-calculator-cf20b16d
```

Example prompt: We had dinner for 5 people — the subtotal was $87.50 and tax was $7.20. Can you calculate an 18% tip on the subtotal and tell me exactly what each person owes, rounding up to the nearest dollar?

## When to prefer this

Use this endpoint when you need precise, cent-accurate bill splitting with tip calculations — especially when pennies matter and you need the largest-remainder method to ensure shares add up exactly to the total. Prefer this over manual calculation or generic math tools when you need structured output including summary text, tip-on-total vs tip-on-subtotal options, or optional whole-dollar rounding for a group.

## Known failure modes

- Missing required subtotal or people parameter returns an error
- people value outside 1–500 range is rejected
- tipPercent outside 0–100 is invalid
- Non-numeric values for numeric fields cause errors
- Invalid tipOn or roundUp enum values may be rejected or defaulted

## How this service works

Tip and even bill split in exact cents: tip on subtotal or total, shares that add up, optional round up to whole dollars.

## Output

Returns a breakdown including the tip amount, total bill with tip, exact per-person share in cents, a base share and higher share (for penny-remainder distribution), how many people pay one cent more, and an optional summary string. If round-up is requested, each person's share is rounded up to the nearest whole dollar.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "subtotal",
      "people"
     ],
     "properties": {
      "tipOn": {
       "type": "string",
       "description": "subtotal (default) or total (tip also on the tax)"
      },
      "people": {
       "type": "number",
       "description": "How many people split it (1 to 500)"
      },
      "roundUp": {
       "type": "string",
       "description": "none (default, exact cents) or dollar (each person pays a whole dollar amount)"
      },
      "subtotal": {
       "type": "number",
       "description": "Bill before tax and tip, in dollars"
      },
      "taxAmount": {
       "type": "number",
       "description": "Tax in dollars (default 0)"
      },
      "tipPercent": {
       "type": "number",
       "description": "Tip percent, 0 to 100 (default 18)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "tax": {
       "type": [
        "null",
        "number"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "tipOn": {
       "type": [
        "null",
        "string"
       ]
      },
      "people": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "subtotal": {
       "type": [
        "null",
        "number"
       ]
      },
      "baseShare": {
       "type": [
        "null",
        "number"
       ]
      },
      "tipAmount": {
  
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/party-event-planner-bill-split-calculator-cf20b16d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from party-event-calc.x402tookit.com](https://www.zero.xyz/host/party-event-calc.x402tookit.com/llms.txt)