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UCP Playground docs

How to point the Playground at a target, drive a model against it, and read a result you can hand to a merchant.

Start herefive minutes
What is UCP?An introduction to Universal Commerce Protocol and what UCP Playground does.Quick StartGet up and running with UCP Playground in under five minutes.Understanding ResultsHow to read session results, tool call timelines, and outcome classifications.
Everything else
01Test a storePoint the harness at a store: inspect tools by hand, run real agents, save targets.
Endpoint DiscoveryTool InspectorWebMCP: the store pageReading Tool ResultsAgent RunsBrowser ExtensionChoosing ModelsComparing ModelsSessions & ReplaysSaved Targets
02Test your agentThe other side of the handshake: validate your agent against live reference stores.
Authorization Failures
03AutomateThe same harness, headless: API, collections, schedules, assertions, webhooks, CI.
API QuickstartWhat Are Evals?Creating CollectionsReading ReportsCI/CD Integration
04Test locallyStores on your own machine — tunnels today, the Local runtime next.
Localhost & Tunnels
05ConformanceWhat the verdicts mean: schema quality, identity enforcement, funnel outcomes, scoring.
Schema QualityIdentity EnforcementFunnel & OutcomesHow Scoring Works
06Be testedFor merchants: make your store agent-ready and verify who is calling it.
UCP Manifest SetupMCP Endpoint ConfigurationREST API FallbackAgent IdentityTesting Your Store
07WorkspaceTeams, roles, scoped API tokens, and usage.
Creating a TeamMembers & RolesSwitching ContextTokens & AbilitiesUsage Dashboard
08ReferenceThe precise layer: glossary, API contract, error shapes.
GlossaryAPI ReferenceErrors & Diagnostics
09TroubleshootingWhen something breaks: common errors, OAuth, transports.
Common ErrorsTransport Failures
Take the harness with youA Chrome side panel that runs a session on the tab you're on — the storefront beside what the agent actually received.
chrome side paneldetects /.well-known/ucppersonal access token
Add to Chrome ↗Read the guide
Spec, not productThe protocol itself is documented separately — transports, schemas, and the identity profile.
UCP specAPI contractChangelog