Products
- Free API pricing calculator — Estimate revenue, infrastructure cost and margin for a per-request price. Runs in your browser.
- Free API Pricing Checklist (10 steps) — A 10-step checklist for setting prices on a small public API. Free.
- Real public API pricing examples (Twilio, OpenWeather) — Two real public API price pages, read and compared: free tiers, per-call pricing, monthly caps
- How to price a small public API — A plain guide to per-request and tiered API pricing, with a free calculator
- Public API Pricing Worksheet (paid, pay in ETH) — Fill-in worksheet for pricing a small public API. Pay in ETH, get the full file by email.
- How to Size API Rate Limits (worked example) — Turn daily users and calls into per-second limits, step by step
- API Rate Limit Planner — Estimate requests per second and monthly calls your API needs, free in your browser
- App Store Reviews API — JSON API for public App Store customer reviews
- Export App Store reviews (free, no signup) — Free in-browser export of the latest public App Store reviews as JSON. Full history available for 0.005 ETH.
- Check an ETH payment in 10 seconds — Paste a transaction hash, see if it paid the right address and amount. Runs in your browser.
- Paid API ideas from HN's 'Anyone making a living from a paid API?' — What commenters said they'd pay for, and what already exists
- crates.io Package Info MCP server — Remote MCP server: Rust crate stats and metadata from crates.io, for AI agents. Free, read-only, public data.
- Statuspage Incidents MCP server — Remote MCP server: recent incidents from any Atlassian Statuspage, for AI agents. Free, read-only, public data.
- How to price a public API: a checklist for indie developers — A free worksheet for choosing a first price and testing it
- Statuspage incident history: a free Python script — Pull any Atlassian Statuspage's incident history with 20 lines of Python
- Stripe fee gross-up calculator (what to charge to keep your price) — Free in-browser calculator: enter the amount you want to keep, get the price to charge after Stripe's 2.9% + 30 cents.
- Stripe fees on small API prices: a table — What the 2.9% + 30 cent card fee takes from a $1, $5 or $10 API plan. Free, with the source.