Free API · Unlimited calls · Fair use

A ticket API you never get billed for.

Send tickets from any form, app, checkout or chatbot. Read their status. Get a signed webhook the moment something changes. No API add-on, no per-call pricing, no plan to upgrade.

Get your free API key Quickstart

POST /v1/tickets
→ 201 Created
{
  "number": "MT-1043",
  "status": "open",
  "public_token": "t_9fK2…",
  "category": "order_issue",
  "priority": "high",
  "link": "https://app.multiticket.io/t/t_9fK2…"
}

What you get, free

Unlimited API calls

No monthly call quota and no per-call fee. Fair-use rate limits only.

Unlimited websites & keys

Every site gets a public key for browsers and a secret key for servers.

Signed webhooks

HMAC-SHA256 signatures, 5 automatic retries, and a delivery log.

AI on every ticket

Spam check, category and priority come back in the API response.

Drop-in widget

Under 20 KB, no framework, with built-in bot protection.

Clear errors

One error shape everywhere: a stable code you can branch on, and a readable message.

Quickstart in 3 steps

1. Get your keys

MT_PUBLIC_KEY=pk_live_…   # safe in the browser
MT_SECRET_KEY=sk_live_…   # server only

2. Create a ticket

From your server with the secret key, or from the browser with the public key (only from your own domain).

curl -X POST https://api.multiticket.io/v1/tickets \
  -H "Authorization: Bearer $MT_SECRET_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Priya",
    "email": "priya@example.com",
    "phone": "+919800000000",
    "subject": "Order not delivered",
    "order_number": "58213",
    "message": "Ordered Monday, not here yet."
  }'

3. Listen for changes

Add a webhook URL for your site. Verify the signature, then update your own page — for example, show "Closed" on the customer's order.

// Node.js
const sig = req.get('X-MultiTicket-Signature');
const expected = 'sha256=' + crypto
  .createHmac('sha256', process.env.MT_WEBHOOK_SECRET)
  .update(rawBody).digest('hex');
if (!crypto.timingSafeEqual(Buffer.from(sig), Buffer.from(expected)))
  return res.sendStatus(401);
// event: ticket.created | ticket.replied | ticket.closed

Endpoints

Method	Path	Key	What it does
`POST`	`/v1/tickets`	public or secret	Create a ticket
`GET`	`/v1/tickets`	secret	List a site's tickets (filter by status, email, phone, date)
`GET`	`/v1/tickets/:token`	public	Status and messages, to show on your site
`POST`	`/v1/tickets/:token/messages`	public	Add a customer reply from your site

Unlimited, with fair use

"Unlimited" means we never count your calls against a quota or bill you for them. Per-minute limits exist only to stop bots and runaway scripts from slowing the service for everyone. Normal websites never hit them.

If you go over, you get a 429 with a Retry-After header — never a bill. Need more for a real use case? Tell us and we'll raise it.

Rate limits (per minute)
New tickets per website	30
New tickets per visitor (IP)	10
Read requests per key	120
AI features per workspace	1,000 / month

Your first ticket in under 5 minutes.

Get your free API key