Your first slate in an hour
Keys, the catalog, one recommend call and the interactions back. Copy-ready in curl, TypeScript, Go and Python.
Patterna developer documentation
Recommendations that prove their lift
Ask for a slate, show it, report what happened. Every surface runs against a holdout, so the number you report is one you can defend.
Prove the lift
Start a holdout, size it with the readable sample, and read the ledger row: difference, interval, and when it is readable.
For AI agents
A self-contained brief your coding agent can execute, plus llms.txt and the OpenAPI contract for its context.
Popular guides
Guides Go live in six steps The setup checklist in six steps, from connecting a data source to a live surface with a holdout and the first readable ledger row.Connectors Backend API Call Patterna directly from your backend: the three key scopes, a curl for each, and event signing.Guides Run a holdout Start a holdout on a surface, size it with the readable sample, keep it valid until it can be read, and end it.Concepts What the engine uses, and what it refuses The full list of signals: request context, catalog attributes, events with their weights, the nightly artifacts, what is refused, and the rule for what a reason may say.Concepts Consent modes The three consent modes personalized, cohort and non_profiled, and what each stores, learns from and never stores.API Serve scope Annotated requests and responses for recommendations and interactions under the serve scope.
OpenAPI 3.1 · v0.3.3
The whole API, interactive
Three scopes, one contract. Try calls against the API with a playground key, straight from the reference.
Browse by section
Guides 8 pages Go live in six steps · Run a holdout · Read a ledger row · Fix a tag and approve a health claim Concepts 11 pages What Patterna is · What the engine uses, and what it refuses · Consent modes · Proof and the ledger Connectors 7 pages Backend API · SDK TypeScript · SDK Go · PostHog API 4 pages API overview · Serve scope · Ingest scope · Admin scope Reference 8 pages Event types · Flow config reference · Reason keys · Error codes