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APIs with no key reported

Explore APIs listed as requiring no private key. Access is source-reported for community entries; rate limits and usage terms still apply.

1,009APIs to explore

Showing 865–900 of 1,009 APIs

Community listing
Business

Favicon.im

Instantly fetch and display the favicon for any website

◇ Reported: No keyCheck pricing
Community listing
Business

Markbase

Search 14M+ USPTO trademarks with fuzzy search and autocomplete

◇ Reported: No keyCheck pricing
Community listing
Business

Mydentify

Discover software by task through structured product directories and weekly leaderboards

◇ Reported: No keyCheck pricing
Community listing
Business

SCALA Score

Search 250M+ company records across 50+ countries with revenue, employees, and credit scores

◇ Reported: No keyCheck pricing
Community listing
Utilities

Byabbe

Seach histories from wikipedia for a particular day

◇ Reported: No keyCheck pricing
Community listing
Utilities

OpenHolidays API

Public and school holidays for many countries via an open REST API

◇ Reported: No keyCheck pricing
Community listing
Utilities

TimeZones iCal Library

Database of official time zones and corresponding iCal VTIMEZONE blocks

◇ Reported: No keyCheck pricing
Community listing
Cloud Storage & File Sharing

Mega.nz

File Sharing And Storage

◇ Reported: No keyCheck pricing
Community listing
Cryptocurrency

Crypto Fear & Greed Index (qiaobax)

Live crypto market sentiment index (0-100) computed hourly from momentum, trend, volatility and volume

◇ Reported: No keyCheck pricing
Community listing
Cryptocurrency

DexPaprika

Free DEX and DeFi data — pools, tokens, OHLCV, and trades across all chains

◇ Reported: No keyCheck pricing
Community listing
Cryptocurrency

OpenChainBench

Open dataset of crypto infrastructure benchmarks: RPC latency, oracles, bridges, prediction markets

◇ Reported: No keyCheck pricing
Community listing
Cryptocurrency

Sharpe

Crypto derivatives, funding, arbitrage, narratives, listings, and news data

◇ Reported: No keyCheck pricing
Community listing
Cryptocurrency

WealthVille

Liquidity pool scores and Enter/Hold/Exit verdicts for Solana and EVM chains

◇ Reported: No keyCheck pricing
Community listing
Finance

Cambio Uruguay

Real-time buy/sell rates from every Uruguayan exchange house with conversion and history

◇ Reported: No keyCheck pricing
Community listing
Finance

ratesapi

Free exchange rates and historical rates

◇ Reported: No keyCheck pricing
Community listing
Data Validation

NumValidate

Open Source phone number validation

◇ Reported: No keyCheck pricing
Community listing
Development

Abacus

Free and simple counting service. You can use it to track page hits and specific events

◇ Reported: No keyCheck pricing
Community listing
Development

AgentDeals

Search and compare developer free tiers, startup credits, and pricing changes

◇ Reported: No keyCheck pricing
Community listing
Development

API Status Check

Real-time status monitoring for 270+ APIs and services

◇ Reported: No keyCheck pricing
Community listing
Development

ArulJohn.com

A simple IP Address API in JSON

◇ Reported: No keyCheck pricing
Community listing
Development

Corsfix

CORS Proxy by Corsfix lets you instantly fetch any resource on the web and bypass CORS errors

◇ Reported: No keyCheck pricing
Community listing
Development

FontDownloader

A hassle free API for managing web fonts provided by Google Fonts

◇ Reported: No keyCheck pricing
Community listing
Development

ipapi.is

Public IP Address API with company, ASN and hosting detection support

◇ Reported: No keyCheck pricing
Community listing
Development

IPLocate.io

Fast, free, accurate IP geolocation and threat data (proxy/VPN/hosting detection) API

◇ Reported: No keyCheck pricing
Community listing
Development

JMESPath Free API

Run JMESPath queries on JSON data for filtering, transforming, and extracting results

◇ Reported: No keyCheck pricing
Community listing
Development

Let's Validate

Uncovers the technologies used on websites and URL to thumbnail

◇ Reported: No keyCheck pricing
Community listing
Development

msgboard

Public message board for agent-to-agent messaging, no account or key

◇ Reported: No keyCheck pricing
Community listing
Development

OOPSpam

Multiple spam filtering service

◇ Reported: No keyCheck pricing
Community listing
Development

OpenUnfurl

No-signup link unfurl API returning Open Graph, Twitter Card and oEmbed metadata

◇ Reported: No keyCheck pricing
Community listing
Development

PHPhub

Validate PHP code

◇ Reported: No keyCheck pricing
Community listing
Development

Prismix

Real-time uptime for 77 AI APIs (OpenAI, Anthropic, Cursor, Gemini) — free JSON endpoint, no auth required

◇ Reported: No keyCheck pricing
Community listing
Development

Public APIs

A collective list of free JSON APIs for use in web development

◇ Reported: No keyCheck pricing
Community listing
Development

Pythonium

Validate Python code

◇ Reported: No keyCheck pricing
Community listing
Development

QR Tag

Create an easy to read QR code and URL shortener

◇ Reported: No keyCheck pricing
Community listing
Development

Shadify

Service for generating data and executing logic to create various games and puzzles

◇ Reported: No keyCheck pricing
Community listing
Development

SQLable

Validate SQL query

◇ Reported: No keyCheck pricing
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Know what’s been checked. Reviewed guides include provider documentation and examples. Community listings contain reported information that may have changed. Our methodology →