banditrunning.com
verified_user Multi-version UCP compliance, backward compatibility & transport audit
schedule Last scanned 5/20/2026
Conformance
63%Capability
100%Coverage
59%Backward Compat
60%Negative
28%Transport
86%Latency
95%Audit Details
Cache-Control max-age is within recommended bounds
No Cache-Control header — clients may re-fetch every request
Profile response advertises cache headers
Discovery response has no Cache-Control header
Profile declares at least the checkout capability
Completed in 74ms
Capability version strings are valid ISO dates
Completed in 78ms
Profile response Content-Type is application/json
Completed in 142ms
Discovery endpoint exposes CORS headers
Completed in 74ms
Profile is served over HTTPS
Completed in 4ms
Two consecutive profile fetches return identical bodies
Completed in 143ms
Signing JWKs use only allowed kty/crv values
Profile declares no signing_keys array — the field is optional per the UCP spec, but agents cannot verify signed payloads from this merchant
No duplicate capability entries (same name + version)
Completed in 81ms
OpenAPI servers[] URL is reachable
Completed in 13ms
Business profile has a valid structure
Completed in 77ms
Merchant responses are signed with the published signing_keys
Profile declares no signing_keys; nothing to verify against. DISC-0002 tracks absence separately.
robots.txt allows AI agents to read the UCP profile
Completed in 127ms
All declared schema URLs use HTTPS
Completed in 76ms
Signing keys are importable via Web Crypto
Profile declares no signing_keys array — the field is optional per the UCP spec, but agents cannot verify signed payloads from this merchant
Profile advertises well-formed signing keys
Profile declares no signing_keys array — the field is optional per the UCP spec, but agents cannot verify signed payloads from this merchant
Service binding transports are in the allowed set
Completed in 101ms
Profile declares a ucp.version string
Completed in 112ms
Profile ucp.version is one the grader recognizes
Completed in 97ms
Profile is served at the canonical .well-known/ucp path
Completed in 69ms
Declared capabilities match operations in the OpenAPI
No OpenAPI operations available to cross-check
Capability JSON Schemas declare a modern $schema draft
Capability-level JSON Schemas are well-formed
OpenAPI components.schemas has no orphans
5 of 5 components.schemas are unreferenced
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- checkout_result
- cart_result
- order_result
- catalog_get_product_result
- meta
Service-level OpenAPI document is valid OpenAPI 3.x
Schema document is missing the "openapi" version field
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Every OpenAPI operation declares a 2xx JSON response schema
OpenAPI declares no operations
Every $ref referenced schema document is reachable
Completed in 1454ms
All declared schema URLs return 200
Discovery profile matches the published JSON Schema
Completed in 78ms
Get a product by id
Expected 200 or 404, got 200
Search products returns a products array
Expected 2xx for query "shirt", got 200
Selected options filter variants in product detail
No product with options/variants found in catalog
Canceling a session twice with the same idempotency key is idempotent
createSession returned status=200
Cancel a checkout session
createSession returned 200
Create checkout session with defaults
createSession returned status=200
Repeated createSession with same idempotency key returns same session
First create failed: 200
Create session then set shipping address
createSession returned 200
Retrieve a checkout session by id
createSession returned 200
Reusing an Idempotency-Key with a different body must be rejected
First createSession returned status=200
update_checkout is idempotent on replay and rejects conflicting replays
createSession returned status=200
Select a shipping method on a checkout session
createSession returned 200
Shipping methods are returned after setting an address
createSession returned 200
Catalog capability advertised for product lookup
Catalog capability is declared
Checkout capability is declared and reachable
Completed in 437ms