Developer & SEO Tools
Structured data, AI token budgets and technical SEO utilities built by engineers who ship production sites.
AI Cost Calculator
Estimate and compare the monthly cost of Claude, GPT and other LLM APIs. Model token usage, caching and batch discounts to find the cheapest model for your workload.
Schema Generator
Generate valid JSON-LD structured data for Article, FAQ, Product, LocalBusiness, HowTo, Recipe, Event and more. Rich-result ready and validated as you type.
Developer guides
Article Schema: Every Property That Matters and Why
Article markup is the most widely implemented structured data type and among the most frequently incomplete. Here is what each property...
DeveloperHow Many Tokens Is a Word? A Practical Token Budgeting Guide
Every LLM cost estimate starts with a token count, and most token counts start with a guess. The guess is usually low, and the error...
DeveloperWhich Schema Types Still Earn Rich Results?
Google has retired or restricted several rich result types over recent years, and a good deal of advice online still recommends...
DeveloperBatch API vs Real-Time: When the 50% Discount Is Free Money
Batch APIs offer roughly a 50% discount in exchange for asynchronous delivery, usually within 24 hours. For a large share of production AI...
DeveloperStructured Data Errors in Search Console: How to Fix Each One
Search Console's Enhancements reports flag structured data problems, and the messages are terse enough that the required fix is often...
DeveloperPrompt Caching Explained: How It Works and What It Saves
Prompt caching is the highest-leverage cost optimisation available to most LLM applications, and it is frequently left unimplemented...