UCP Checker

complete_checkout_session

Place the order. Must provide valid AP2 mandate.

Schema

Input Schema

{
    "type": "object",
    "required": [
        "session_id",
        "ap2_mandate"
    ],
    "properties": {
        "session_id": {
            "type": "string",
            "description": "Session ID to complete"
        },
        "ap2_mandate": {
            "type": "object",
            "properties": {
                "hash": {
                    "type": "string"
                },
                "signature": {
                    "type": "string"
                }
            },
            "description": "AP2 Mandate containing hash and signature"
        }
    }
}
Verified Stores
1
Member Stores

Stores exposing the complete_checkout_session tool

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Weekly UCP Report
Issue #50 · Sep 14, 2026
+664
new verified stores
Verified rate
Latest spec
Cart capability