`preview_checkout`

Price a registration before anyone pays.

Anonymous, or a Bearer token for viewer tools

Endpoint

endpoint

https://go.sessions.website/api/mcp

When to use it

Before quoting any figure to a person — this is the only tool here that returns real money.
To check whether a discount or gift-card code applies before offering it.

Parameters

sessionstringrequired

Session id to price.

discountCodestringoptional

Optional discount code.

giftCardCodestringoptional

Optional gift-card code.

Returns

Subtotal, discount, tax, gift-card credit, total and amount due, plus any per-field errors explaining why a code did not apply.

Example

POST this to the endpoint above.

JSON-RPC

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "preview_checkout",
    "arguments": {
      "session": "<session id>",
      "discountCode": "AUTUMN10"
    }
  }
}

content

Subtotal: $24.00
Discount: -$2.40
Tax: $0.00
Total: $21.60
Amount due: $21.60

What the agent is told

The description the model reads when deciding whether to call this. It is the only thing that decides whether the tool fires at the right moment, so it is worth knowing what it says.

preview_checkout

Compute the price breakdown (subtotal, discount, tax, gift-card credit, total, amount due) for registering in a session — before any payment. Optionally apply a discount or gift-card code.