#apidesign

Short answer: put a small, explicit quota boundary in front of every realtime connection, make...

A lookup that accepts both a random public handle and an auto-increment id gives you an enumerable API even when every URL you generate is unguessable. The dangerous part is the helper that accepts either.

An unpaginated list endpoint that a human tolerates will destroy an agent. Ours returned 794KB and blew the context window of the model calling it, on the API we sell to agents.

Short answer: set a hard spend cap for the amount you cannot exceed, then put a budget alert...

There is a pattern that feels completely natural when building an API. The frontend gets an Approve button, so the backend gets an endpoint: POST...

How goformx freezes, packages, and checksums its OpenAPI contract so external clients can pin to a specific, verifiable release instead of a moving branch.

How northway's SQLite store keeps paid AI-provider queries idempotent and budget-bounded, using a single writer, lease-based claims, and a reserve-then-settle spend model.

When building data pipelines for contact intelligence, the reality of public data is rarely uniform....

How pre-spend validation, content-aware engine routing, live cost preview, and transient error retry patterns reduce wasted spend on AI video APIs that cost $0.10–$2.00 per generation.

10-table schema with composite keys, immutable versioning, dual event pipelines, step state machines, and a full REST API delivered in 6 stacked PRs.

Migrating FastAPI lifecycle hooks, fixing Langfuse integration, enforcing Firestore security rules, and stabilizing a headless API used by external CI/CD pipelines.

Senior Software Engineers and Architects face a critical choice in API design for high-throughput services. This guide provides a rigorous architectur