All Articles
Building a Production Multilingual Translation SaaS with Claude API — Glossaries, Style, and Domain Adaptation in Practice
A practical, code-first design guide for running a translation SaaS on Claude API: glossaries, style guides, domain adaptation, quality gates, and cost controls that survive real production traffic.
Building a Production Claude API Pipeline on Cloudflare Queues: Fault Tolerance, Backpressure, and Cost Control
A practical, code-first walkthrough for routing Claude API calls through Cloudflare Queues — covering producer/consumer code, retry-vs-DLQ branching, priority lanes, and token budgeting for production workloads.
Infrastructure Requirements for Claude API Deployment: Sizing, SLA, and Compliance Decisions Before Production
Your prototype works. But what does 'production-ready' actually mean? This guide walks through how to derive infrastructure requirements from traffic, SLA, and data-residency decisions — with concrete numbers and a sizing formula.
Production Semantic Cache for Claude API — Similarity Thresholds, Pollution Defense, and What to Track
A production playbook for adding a semantic cache in front of Claude API — threshold tuning, multi-tenant isolation, pollution prevention, fallbacks, and the metrics that actually prove it works.
Why "The requested model does not exist" Won't Go Away — Claude API Naming and Access Pitfalls
The model_not_found error in the Claude API is almost always a typo or a stale model alias — not a permissions issue. Here are the current model IDs as of April 2026 and a clear order for narrowing down the cause.
Four Infrastructure Levers That Cut Claude API Latency Before You Touch the Model
Before you downgrade Sonnet to Haiku to chase faster responses, the network and request shape around your Claude API calls usually has more headroom. Here are four infrastructure levers — region selection, connection pooling, prompt caching, and streaming — with code and measurement notes.
Claude API × Inngest — Durable AI Workflows with Retries, Idempotency, and Human Approval
A production-grade pattern for combining Claude API with Inngest. Build TypeScript-first durable AI workflows that retry safely, stay idempotent, gate dangerous calls behind human approval, and run on Vercel or Cloudflare Workers.
Building a Recurring Billing SaaS with Claude API and Stripe — From Architecture to Production
A complete architecture guide for building a SaaS product powered by Claude API with Stripe recurring billing. Covers usage metering, tiered pricing, webhook handling, and production deployment patterns.
Diagnosing Claude API Prompt Cache Misses — How to Read the usage Field
If your Claude API prompt cache isn't reducing your bill, the usage field is where to start. This guide walks through the five most common reasons cache_read_input_tokens stays at zero and how to fix each one.
Managing Claude API Prompts as Code: Registry, Versioning, and A/B Testing in Production
Anyone running Claude API in production eventually hits the same wall: which prompt was served, when, to whom, and at what version? This guide walks through a registry-based architecture with A/B testing, gradual rollouts, and automatic rollback — all implementable yourself in TypeScript.
Production Infrastructure for Claude API — 8 Things You Need Between 'It Works' and 'It Holds Up'
There is a much bigger gap than you'd think between a working Claude API call on your laptop and a service that survives real users. Here are the eight pieces of infrastructure I now consider non-negotiable, learned the hard way.
Indie Developer's Claude API SaaS Launch Blueprint — A 90-Day Roadmap from Idea to Paying Customers
A complete 90-day roadmap for building an indie Claude API business: idea validation, Stripe integration, SEO, subscription pricing tests, and the operational and emotional discipline that makes it last. Drawing on twelve years of solo app development and the new realities of AI APIs.