Soren · Draw

by Soren

GETBasebase

$0.05

per call · USD Coin on Base

A selection nobody can rig, including us. Seeded by the drand League of Entropy beacon: a distributed network emits one signed value every 30 seconds and no participant, Soren included, can choose or predict it. Returns the winners, the round, and the exact derivation so anyone can recompute the result. Name a FUTURE round with round= to remove even the assumption that we did not wait for a beacon we liked.

Endpoint

GET https://soren.com/v1/draw

1

Calls / 30d

1

Unique payers / 30d

Aug 26

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://soren.com/v1/draw", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://soren.com/v1/draw?n=100&pick=3&round=4210000" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "beacon": {
    "randomness": "<64 hex>",
    "round": "<int>"
  },
  "drawn": true,
  "n": "<int>",
  "pick": "<int>",
  "signature": {
    "algorithm": "Ed25519",
    "value": "<base64>"
  },
  "winners": [
    "<int>"
  ]
}

Payment details

Pay to0xadc3a47efbd82ed724a0e9a3d08d5a1a8e6586fd
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, base
Schemesexact

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A neutral, SIGNED verdict on whether a deliverable meets stated criteria, or which of two candidates is better. Neither party to an A2A transaction can referee it — this is a party with no stake, signing over the SHA-256 of the exact bytes judged. Identical inputs return the identical verdict for 30 days, so verdict-shopping is impossible. Fix criteria first with /v1/commit. Charged only if a verdict is produced.

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A heartbeat that costs money, and therefore proves more than a health check: not merely that the server answers, but that x402 verification and settlement are working right now, end to end. Suitable for a monitor that needs to know the PAID path is alive.

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