Glossary

Short definitions. Linked pages have the how-to.

Term	Meaning
Canopy	Configurable web UI framework (Next.js). Powers PolyUI and customer CRUD apps. Canopy
PolyUI	Default Canopy app for managing Poly resources. Login: /canopy/polyui/login (API key).
Vari	Variable and secret store (get / inject). Vari Variables
Tabi	Managed PostgreSQL tables for structured row data. Prefer over Vari for thousands of rows. Tabi Tables
Project Glide (Glide)	Git-backed polyConfig → prepare → sync. Project Glide
Server Function	Your code on Poly’s Knative FaaS. Server Functions
Context	Dot-separated namespace. With name, SDK path poly.<context>.<name>. Context
Visibility	ENVIRONMENT | TENANT | PUBLIC — who can discover/call, not who can edit. Visibility
Tenant	Company / billing boundary on an instance.
Environment	Isolation unit inside a tenant. Keys and most resources are env-scoped.
API Function	Trained outbound HTTP template, executed by the gateway. API Function Training
Client Function	In-process helper in the generated SDK. Client Functions
Snippet	Copy-paste source text, not a callable. Snippets
API Endpoint (Webhook Handle)	Inbound HTTP on the gateway. Canopy/REST still say Webhooks. API Endpoints (Webhooks)
Trigger	Binding from a webhook or error-handler filter to a server function. Events and Triggers
Event (docs convention)	Three args: eventPayload, headersPayload, paramsPayload (Jobs + webhook Triggers). Not CNCF CloudEvents.
Job	Scheduled run of server function(s) with Event args. Jobs
GraphQL Subscription	Upstream subscription → server function with [event, params]. GraphQL Subscriptions
AI Function	LLM wrapper in the catalog (prompt, args, optional tools). AI Functions

Choosing a type: Choosing a Poly resource. Runtime diagram: Platform architecture.

Product docs vs API reference

• Product docs — this site (https://docs.polyapi.io/).

• API reference (Swagger) — https://<your-instance>/swagger. Canopy Helpful Links should use that label for the Swagger URL (not “PolyAPI Docs”). API reference