Build on the scheduling engine we run on.

const url = "https://api.onlinescheduling.com/v1/rules";
const res = await fetch(url, {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    text: "No one works more than 40 hours a week.",
  }),
});
const rule = await res.json();

{
  "id": "rule_40h",
  "status": "draft",
  "read_back": "Each person works at most 40 hours in a week, Monday to Sunday."
}

const url = "https://api.onlinescheduling.com/v1/schedule-runs";
const res = await fetch(url, {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    from: "2026-10-19",
    to: "2026-10-25",
    mode: "preview",
    keep_existing: true,
  }),
});
const run = await res.json();

202 Accepted
{ "id": "run_5Tz", "status": "queued" }

const url = "https://api.onlinescheduling.com/v1/changes";
const res = await fetch(`${url}?after=4811`, {
  headers: { Authorization: "Bearer YOUR_API_KEY" },
});
const changes = await res.json();

{
  "seq": 4812,
  "type": "assignment.created",
  "actor": { "type": "key", "name": "Quickstart" },
  "reason": "Theo is out Friday",
  "subject": { "shift": "shf_fri_oak", "resource": "res_lena" },
  "signature": "b7d0…3c19"
}

const url = "https://api.onlinescheduling.com/v1/resources";
const res = await fetch(url, {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    kind: "asset",
    name: "Mower 1",
    tags: ["mower"],
    facts: ["Zero-turn riding mower"],
  }),
});
const mower = await res.json();