Tip calculator API: tip, total and split per person

$0.01 per call · failed calls are never charged · no account or API key needed

Tip and total for a bill at a tip percentage, split between any number of people, optionally rounding each share up to the next whole amount. Use for receipts, expense apps and group payments.

When to use it

Add a tip percentage to a bill and get the total
Split the total between several people
Round each share up to a whole amount

Run it free (25 free calls) Buy credits by card (from $5) Example result (JSON)

Inputs

Name	Type	Description
`bill` (required)	number	Bill amount before tip
`percent`	number	Tip percent, 0-100 (default 15)
`people`	integer	People sharing, 1-100 (default 1)
`roundUp`	string	true to round each share up to a whole amount

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/calc/tip?bill=84.5"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/calc/tip?bill=84.5&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "bill": 84.5,
  "percent": 18,
  "tip": 15.21,
  "total": 99.71,
  "people": 3,
  "perPerson": 33.24
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is calc_tip, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

Questions

What is the default tip?

15% unless you pass percent.

How many people can share?

From 1 to 100.

How do I pay?

Each successful call costs $0.01; failed calls are not charged. The first 25 calls are free. Then pay with card credits (from $5) or per call in USDC over x402 or MPP. No account or API key is needed.