Watercare IGC (NZ)
Auckland water and wastewater Infrastructure Growth Charge calculations
Government · No auth · HTTPS
Search the API archive · Page 13
Page 13 of 215
Ordered by reported HTTPS, CORS support, no-auth access, then changed/observed facts. Access signals are not a popularity or quality score.
WealthVille
Liquidity pool scores and Enter/Hold/Exit verdicts for Solana and EVM chains
Cryptocurrency · No auth · HTTPS
Website & Web-App Cost Data
Web-project cost benchmarks by platform across 6 markets (build, hosting, 3-year TCO, hourly rates), CC BY 4.0
Open Data · No auth · HTTPS
Window Sticker
Original factory Monroney label PDF and full spec decode by VIN
Vehicle · No auth · HTTPS
XMLable
Validate XML
Development · No auth · HTTPS
Yamline
Validate Kubernetes manifests
Development · No auth · HTTPS
Yomi
Japanese tokenizer and morphological analysis web API
Text Analysis · No auth · HTTPS
ZipCheckup
U.S. drinking water quality data by ZIP code from EPA and 20+ federal sources
Environment · No auth · HTTPS
Agent Nexus
Continuously probed registry of APIs, MCP servers and CLIs callable by agents
Development · No auth · HTTPS
Email Spam Tester
Send a test message and get a spam score, 41 checks with RFC citations and a fix plan
Email · No auth · HTTPS
EU VAT Rates by Commodity Code
EU VAT rates mapped to CN and CPA commodity codes, all 27 member states
Government · No auth · HTTPS
GTFS Scorecard
Data-quality grades and prioritized fixes for 2,400+ public transit GTFS feed records
Transportation · No auth · HTTPS
SoloLuck
Bitcoin solo mining pool stats, per-address miner stats and an open dataset of solo-mined blocks
Cryptocurrency · No auth · HTTPS
XOOMAR
US market data from SEC, FINRA, CFTC and the Fed: filings, insiders, earnings dates, short interest
Finance · No auth · HTTPS
Big Data Explained
Cloud data warehouse list prices, read daily from AWS and Azure pricing APIs, with price history
Open Data · No auth · HTTPS
CorpStacking
Corporate, government and ETF Bitcoin, Ethereum and Solana treasury disclosures
Cryptocurrency · No auth · HTTPS
Face Shape Guide Lookup
Read-only lookup for published face-shape guide records
Art & Design · No auth · HTTPS
FanLine Wire
Real-time FanDuel Sportsbook odds — live & in-play and pre-match, with a keyless public snapshot
Sports & Fitness · No auth · HTTPS
Nerdulator
Everything derivable from one value: numbers, dates, colours, UUIDs, cron expressions
Development · No auth · HTTPS
OddsBench
Independent monthly latency benchmark of sports odds APIs, with free JSON and CSV data
Sports & Fitness · No auth · HTTPS
Open-Meteo
Free weather API for non-commercial use
Environment · No auth · HTTPS
Waldrand Avatar
Deterministic SVG/PNG/WebP avatars from any string, four styles
Test Data · No auth · HTTPS
Banking Access Index
Which US business banking providers accept founders by country of residence, with sources
Finance · No auth · HTTPS
Email Validator by LifeStep
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
Email · No auth · HTTPS