Public APIs with no API key — page 33

Fake REST API with chaos controls: force any status code, add latency, or a failure rate

Static JSON dataset of 10,000+ Florida Man headlines by date

Fuck Off As A Service

On-chain top-10 holder concentration and contract permissions for crypto tokens

Open-source search engine aggregating tech jobs from company ATS boards

Exchange rates for 144 currencies with daily history back to the 1990s, English and Arabic

Translate Text into funny languages

Trading hours and session windows for 65 futures products on 16 global exchanges

Source-linked historical reference exchange rates with CSV, JSON and an MCP server

French geographical data

Barcode (EAN-13, UPC-A, Code 128, ITF-14) and QR code images, PNG or SVG. Docs in Portuguese

Bilingual Web3 lessons, glossary search and role-based learning paths

GitHub Trending repositories with star history and open-source alternatives to paid tools

Cross-validated gold, silver & copper spot, futures & 30-year history in 13 currencies

A lightweight URL shortener, focused on ease-of-use for the developer and end-user

Pressure scores, demand, generation mix and alerts for the 10 major U.S. power grids

Data-quality grades and prioritized fixes for 2,400+ public transit GTFS feed records

GW2Spidy API, Items data on the Guild Wars 2 Trade Market

US Treasury auction results with the tail and bidder split, plus scored economic releases

News with media bias scoring, balanced news synthesis, live market data, AI options pricing

Elixir and Erlang package versions and docs

Hipster-themed lorem ipsum generator for placeholder text

Source-backed hosting price and provider record lookup

Basic DNS query via HTTP GET request