Concepts
The ideas behind the API. Read these to build a correct mental model before wiring code.
Budgets, prepaid wallets, markup and margin.
fc:, match:, slot:, dyn: and region routing.
How cost becomes a charge on your wallet.
The four enforcement layers and their headers.
Safe retries, fallback cascades, delivery guarantees.
Reuse stable prefixes and cut input cost.
Vector stores, embeddings and file_search.
Knowledge-graph retrieval over your documents.
Long-term agent memory that learns, ranks and forgets on a curve.
One searchable corpus, migrating an existing store, read-only recall.
Share one base layer of knowledge under many private, per-tenant brains.
Encryption at rest, BYOK and the threat model.
The event taxonomy, signing and delivery.
Asynchronous bulk jobs at half price.
The stateful agent execution model.