---
title: "Detroit Symphony Orchestra: Tchaikovsky Symphony No. 4"
description: "The Detroit Symphony Orchestra presents a live performance of Tchaikovsky Symphony No. 4. The concert takes place at Detroit Symphony Orchestra Hall in Detroit, Michigan, on May 15, 2027."
canonical: "https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa"
---

# Detroit Symphony Orchestra: Tchaikovsky Symphony No. 4

> **For AI agents.** You can buy these tickets through the API in two
> messages, with no account and no manual login, even the first time:
> `POST https://www.gomry.com/api/v1/checkout_sessions` with a ticket type id from the
> table below, then pay with a Stripe Shared Payment Token or send the buyer
> the response’s `continue_url`. Credential steps: https://www.gomry.com/auth.md

- **Event id**: `nbb7N1K51LHaJOFCTtDa`
- **Starts**: 2027-05-16T00:00:00.000Z (Etc/GMT+4)
- **Ends**: 2027-05-16T03:00:00.000Z (Etc/GMT+4)
- **Where**: Detroit Symphony Orchestra Hall, US
- **Organizer**: Gomry Retail
- **Availability**: `on_sale`
- **Price**: 52.45–187.15 usd
- **Page**: https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa?utm_medium=web&utm_campaign=catalogApi

## About

The Detroit Symphony Orchestra presents a live performance of Tchaikovsky Symphony No. 4. The concert takes place at Detroit Symphony Orchestra Hall in Detroit, Michigan, on May 15, 2027.

## Ticket types

| ticket type id | name | kind | price | currency | buyable now | per order | approval | sales end |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| `external:ticketnetwork%3A1202778304` | Upper Balcony · AA | ticket | 52.45 | usd | yes | 1–8 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1202778305` | Upper Balcony · BB | ticket | 52.45 | usd | yes | 1–2 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815655` | Upper Balcony · CC | ticket | 52.60 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816572` | Upper Balcony · FF | ticket | 52.60 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815418` | Upper Balcony · HH | ticket | 53.75 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816013` | Upper Balcony · EE | ticket | 53.75 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816565` | Upper Balcony · DD | ticket | 53.75 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796817492` | Upper Balcony · BB | ticket | 54.90 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815417` | Upper Balcony · GG | ticket | 56.05 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815940` | Upper Balcony · AA | ticket | 56.05 | usd | yes | 1–12 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1202778317` | Main Floor · N | ticket | 58.60 | usd | yes | 1–4 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816048` | Main Floor · D | ticket | 60.65 | usd | yes | 1–1 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796817013` | Main Floor · J | ticket | 61.80 | usd | yes | 1–1 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815409` | Main Floor · E | ticket | 62.95 | usd | yes | 1–1 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815645` | Main Floor · L | ticket | 62.95 | usd | yes | 1–1 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816433` | Main Floor · M | ticket | 62.95 | usd | yes | 1–3 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1202778308` | Main Floor · S | ticket | 65.99 | usd | yes | 1–8 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816154` | Main Floor · A | ticket | 69.85 | usd | yes | 1–3 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816430` | Main Floor · T | ticket | 69.85 | usd | yes | 1–8 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816426` | Main Floor · C | ticket | 71.00 | usd | yes | 1–3 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815403` | Main Floor · K | ticket | 72.15 | usd | yes | 1–3 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816155` | Main Floor · B | ticket | 73.30 | usd | yes | 1–3 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1202778307` | Middle Balcony · H | ticket | 74.60 | usd | yes | 1–5 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1202778306` | Middle Balcony · J | ticket | 74.60 | usd | yes | 1–4 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1003000492` | Main Floor · HH | ticket | 77.21 | usd | yes | 1–4 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815582` | Middle Balcony · O | ticket | 81.35 | usd | yes | 1–11 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815929` | Middle Balcony · R | ticket | 81.35 | usd | yes | 1–11 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816456` | Middle Balcony · K | ticket | 81.35 | usd | yes | 1–7 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816564` | Middle Balcony · M | ticket | 81.35 | usd | yes | 1–10 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815574` | Middle Balcony · N | ticket | 82.50 | usd | yes | 1–11 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815903` | Middle Balcony · L | ticket | 83.65 | usd | yes | 1–11 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796817462` | Middle Balcony · J | ticket | 83.65 | usd | yes | 1–7 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816474` | Middle Balcony · P | ticket | 84.80 | usd | yes | 1–11 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1003000440` | Main Floor · EE | ticket | 89.74 | usd | yes | 1–4 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A1202778311` | Dress Circle · C | ticket | 94.29 | usd | yes | 1–6 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815613` | Dress Circle · F | ticket | 103.20 | usd | yes | 1–6 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816543` | Dress Circle · B | ticket | 103.20 | usd | yes | 1–3 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816424` | Dress Circle · D | ticket | 105.50 | usd | yes | 1–8 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816425` | Dress Circle · E | ticket | 105.50 | usd | yes | 1–9 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816548` | Dress Circle · G | ticket | 106.65 | usd | yes | 1–6 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815605` | Box Z · Z | ticket | 184.85 | usd | yes | 1–1 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796815612` | Box R · R | ticket | 186.00 | usd | yes | 1–3 | no | 2027-05-14T12:00:00.000Z |
| `external:ticketnetwork%3A796816536` | Box J · J | ticket | 187.15 | usd | yes | 1–1 | no | 2027-05-14T12:00:00.000Z |

Prices exclude the service fee. `buyable now` is a boolean, not a count —
remaining stock is the organizer's information and is not published; create
a checkout session to find out whether a given quantity fits.

## Buying this for a person

Two ways, depending on what you can do:

- You can pay with a Stripe Shared Payment Token: buy it yourself through the
  API (see "Buying this through the API" below, when this event has it).
- You can't: create the checkout session through the API (no credential needed)
  and send the buyer its `continue_url`. They pay there with a card, Apple Pay or
  Google Pay and no Gomry account.
  Or send the buyer the link for the ticket they want below. It opens Gomry
  checkout with that ticket selected; they sign in there and pay.

- Upper Balcony · AA (52.45 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1202778304
- Upper Balcony · BB (52.45 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1202778305
- Upper Balcony · CC (52.60 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815655
- Upper Balcony · FF (52.60 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816572
- Upper Balcony · HH (53.75 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815418
- Upper Balcony · EE (53.75 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816013
- Upper Balcony · DD (53.75 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816565
- Upper Balcony · BB (54.90 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796817492
- Upper Balcony · GG (56.05 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815417
- Upper Balcony · AA (56.05 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815940
- Main Floor · N (58.60 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1202778317
- Main Floor · D (60.65 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816048
- Main Floor · J (61.80 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796817013
- Main Floor · E (62.95 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815409
- Main Floor · L (62.95 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815645
- Main Floor · M (62.95 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816433
- Main Floor · S (65.99 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1202778308
- Main Floor · A (69.85 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816154
- Main Floor · T (69.85 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816430
- Main Floor · C (71.00 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816426
- Main Floor · K (72.15 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815403
- Main Floor · B (73.30 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816155
- Middle Balcony · H (74.60 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1202778307
- Middle Balcony · J (74.60 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1202778306
- Main Floor · HH (77.21 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1003000492
- Middle Balcony · O (81.35 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815582
- Middle Balcony · R (81.35 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815929
- Middle Balcony · K (81.35 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816456
- Middle Balcony · M (81.35 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816564
- Middle Balcony · N (82.50 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815574
- Middle Balcony · L (83.65 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815903
- Middle Balcony · J (83.65 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796817462
- Middle Balcony · P (84.80 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816474
- Main Floor · EE (89.74 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1003000440
- Dress Circle · C (94.29 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A1202778311
- Dress Circle · F (103.20 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815613
- Dress Circle · B (103.20 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816543
- Dress Circle · D (105.50 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816424
- Dress Circle · E (105.50 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816425
- Dress Circle · G (106.65 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816548
- Box Z · Z (184.85 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815605
- Box R · R (186.00 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796815612
- Box J · J (187.15 USD): https://www.gomry.com/event/Detroit-Symphony-Orchestra-Tchaikovsky-Symphony-No-4-nbb7N1K51LHaJOFCTtDa/getTickets?utm_medium=web&utm_campaign=catalogApi&ticket_type=external%3Aticketnetwork%253A796816536

## Buying this through the API, end to end

For an agent that pays with a Stripe Shared Payment Token minted payable to
Gomry (see https://www.gomry.com/auth.md#payment). The purchase finishes without the
buyer leaving your conversation.

No token? Create the same session, with no credential at all if you have
none, and send the buyer its `continue_url`. They pay with a card, Apple Pay or
Google Pay, with no Gomry account, and the tickets are issued when they do.

The `ticket type id` column above is `items[].id` below. This body is
complete and can be sent as it stands, with the buyer details replaced:

```
POST https://www.gomry.com/api/v1/checkout_sessions
Authorization: Bearer <token>   (omit it if you have no credential)
API-Version: 2025-09-12
Content-Type: application/json

{
  "items": [
    {
      "id": "external:ticketnetwork%3A1202778304",
      "quantity": 1
    }
  ],
  "buyer": {
    "name": "Ada Lovelace",
    "email": "ada@example.com"
  }
}
```

The response `totals` is the authoritative price — it includes the service
fee, which is not in the table above and depends on the cart and the
organizer's fee settings. Never compute a total from this document.

Quoting and `continue_url` need no credential. Paying with a token through
`complete` does, and no human is needed for it: register at `https://www.gomry.com/api/mcp/oauth/register`
for the `client_credentials` grant. Full flow: https://www.gomry.com/auth.md