UCP Checker
Check a store

cancel_cart

Cancel and discard a cart session.

11,491verified stores declare the cancel_cart tool
58.4%of the verified stores we check

Who declares it

verified stores we check
By store platform
Shopify 95%Jumpseller 4%Shopware 0% others 1%
By release
2026-08-2599.9%
2026-04-080.1%

Examples

12 of 11,491, highest UCP Score first
agentdiet.dev Shopware · 2026-08-25 alpha-stream.agentdiet.dev Shopware · 2026-08-25 arxiv-digest.agentdiet.dev Shopware · 2026-08-25 assay.agentdiet.dev Shopware · 2026-08-25 company-enrich.agentdiet.dev Shopware · 2026-08-25 cve-intel.agentdiet.dev Shopware · 2026-08-25 defi-yield.agentdiet.dev Shopware · 2026-08-25 devucp.netsgroup.com Custom or not identified · 2026-08-25 domain-osint.agentdiet.dev Shopware · 2026-08-25 email-verify.agentdiet.dev Shopware · 2026-08-25 github-audit.agentdiet.dev Shopware · 2026-08-25 hn-pulse.agentdiet.dev Shopware · 2026-08-25

Each store has its own status page. To find more, search the directory.

Input schema

inputSchema
{
    "type": "object",
    "required": [
        "meta",
        "id"
    ],
    "properties": {
        "id": {
            "type": "string",
            "description": "Cart session ID to cancel."
        },
        "meta": {
            "type": "object",
            "required": [
                "idempotency-key"
            ],
            "properties": {
                "signature": {
                    "type": "string",
                    "description": "Optional detached JWS signature (RFC 7515 Appendix F) for message integrity."
                },
                "ucp-agent": {
                    "type": "object",
                    "required": [
                        "profile"
                    ],
                    "properties": {
                        "profile": {
                            "type": "string",
                            "format": "uri",
                            "description": "URL to the platform UCP profile document (/.well-known/ucp equivalent for the agent)."
                        }
                    },
                    "description": "Platform agent identification. Carries the platform UCP profile URI."
                },
                "idempotency-key": {
                    "type": "string",
                    "format": "uuid",
                    "description": "UUID for retry safety. Required on complete_checkout and cancel_checkout."
                }
            },
            "description": "Request metadata. Include ucp-agent for capability negotiation. idempotency-key is required on complete/cancel for retry safety."
        }
    }
}

Explore protocol data