Easter date calculator · Easter Date

by Easter date calculator

POSTBaseSolanaArbitrumPolygonMonadAvalancheeip155:1329OptimismFraxtaleip155:42220stellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

$0.001

per call · USD Coin on Base

Compute the date of Easter Sunday for a given year using the Anonymous Gregorian algorithm (Meeus/Jones/Butcher). Also returns Good Friday, Ash Wednesday, Palm Sunday, Pentecost, and the day-of-year for Easter.

Endpoint

POST https://agent402.tools/api/easter-date

4

Calls / 30d

1

Unique payers / 30d

Aug 31

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/easter-date", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "year": 2026
  }),
});
const data = await res.json();
cURL
curl -X POST \
  "https://agent402.tools/api/easter-date" \
  -H "Content-Type: application/json" \
  -d '{"year":2026}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "ashWednesday": "2026-02-18",
  "dayOfYear": 95,
  "easter": "2026-04-05",
  "goodFriday": "2026-04-03",
  "palmSunday": "2026-03-29",
  "pentecost": "2026-05-24",
  "year": 2026
}

Payment details

Pay to0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana, Arbitrum, Polygon, Monad, Avalanche, eip155:1329, Optimism, Fraxtal, eip155:42220, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
Schemesexact, upto

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