Claude Fable 5.1 & GPT-6 Astra packages are live

API

12 packages, each available for 11 model families.

api-security

Securing an HTTP API — authentication at the edge, per-object authorization, input validation, transport, and the controls that stop the OWASP API…

11 models

filtering

Filter parameters that are expressive without being injectable — allowlisted fields, typed operators, index-backed queries, and bounded cost.

11 models

graphql

GraphQL schema and server rules — bounding query cost, killing N+1 with dataloaders, per-field authorization, and errors clients can act on.

11 models

open-api

OpenAPI specifications that stay true — generating from code, gating breaking changes in CI, and producing docs and SDKs from one source.

11 models

pagination

Cursor and offset pagination — which to use, how to encode a cursor, and why deep OFFSET pages get slower and skip rows.

11 models

rate-limiting

Rate limiting that protects the service without punishing legitimate clients — algorithm choice, key selection, headers, and distributed enforcement.

11 models

rest

Designing HTTP APIs that clients can rely on — resource modelling, correct status codes, idempotency, and the conventions that prevent breaking…

11 models

rpc

gRPC and typed RPC — protobuf evolution rules, deadlines and cancellation, streaming, error models, and when RPC beats REST.

11 models

sdk

Publishing client SDKs that stay correct — generation from the spec, retries and idempotency, typed errors, versioning, and release automation.

11 models

sorting

Sort parameters that are stable, indexed and injection-proof — allowlisted keys, deterministic tiebreakers, null ordering, and locale-aware text.

11 models

versioning

Versioning an HTTP API without stranding clients — what counts as breaking, where the version lives, and how to deprecate on a schedule people can…

11 models

webhooks

Sending and receiving webhooks reliably — HMAC signatures, replay protection, at-least-once delivery, retries with backoff, and idempotent consumers.

11 models

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