Eventlayer / Eventlayer API

An event API you’ll
actually want to integrate.

Predictable REST resources, a typed TypeScript SDK, useful errors and the context you need when something goes wrong.

Show the API

From API key to first ticket.

Install eventlayer and set EVENTLAYER_KEY on your server. This excerpt creates an event and an available ticket. The quickstart adds Maya as an attendee and assigns her ticket, with recovery guidance for each step.

Read the quickstart

TypeScript · server-side excerpt

// npm install eventlayer
import { Eventlayer } from "eventlayer";

// Reads EVENTLAYER_KEY from your server environment.
const eventlayer = new Eventlayer(undefined, { maxRetries: 0 });
const { data: event, error } = await eventlayer.events.create({
  name: "After Hours",
  startAt: { utc: "2026-11-07T08:00:00Z", timezone: "Australia/Sydney" },
});
if (error) throw error;

const { data: ticket, error: ticketError } =
  await eventlayer.tickets.create({ eventId: event.id });
if (ticketError) throw ticketError;
console.log(ticket.id);

The Eventlayer model

Resources that fit together.

An event groups its attendees and ticket types. Each ticket belongs to a type and can be assigned to one attendee. Wallet and check-in use that ticket.

Event / After Hours

Time, location and the people coming.

Ticket types

General Admission, VIP, Staff

↓ each ticket belongs to a type

Ticket

Available → assigned → checked in

Attendees

Maya Chen and the people registered

↓ assign an attendee to a ticket

Ticket ↔ Attendee

One ticket records access. One attendee can hold multiple tickets.

From the ticketWallet passCheck-in

Useful failure context

Errors made for code, not screenshots.

Branch on a stable code and field name. Keep the request ID when a failure needs investigation.

422 · response excerpt

{
  "status": 422,
  "error": {
    "code": "VALIDATION_FAILED",
    "detail": "One or more fields are invalid.",
    "requestId": "req_01k2example",
    "fields": [{
      "field": "endsAt",
      "message": "The end time must be after the start time."
    }]
  }
}

HTTP failures come back in the SDK’s error result. Network failures throw, so you can distinguish a rejected request from an unknown outcome.

requestIdDeveloper support

Errors and recovery →

REST API

Not using TypeScript? It’s still just HTTP.

TypeScript · server

const { data, error } = await eventlayer.events.list();
if (error) throw error;
console.log(data);

cURL · server

curl https://api.eventlayer.dev/v1/event \
  -H "Authorization: Bearer $EVENTLAYER_KEY"

Explore the API reference

Your product. Eventlayer underneath.

Make your first API call.

Create a workspace, verify your email and issue your first ticket with the quickstart.

Start building

Free during private beta. No credit card.