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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

Community listing

Development

Phone Specs

Real-time smartphone specifications database for 263 devices

◇ Reported: No keyCheck pricing

Community listing

Development

ProxyForge

Free auto-updating list of live-tested proxies (HTTP/HTTPS/SOCKS4/SOCKS5), refreshed every 6 h

◇ Reported: No keyCheck pricing

Community listing

Development

QR & Barcode

QR codes and barcodes (Code 128, EAN-13, Data Matrix, PDF417 + more). SVG or PNG output

◇ Reported: No keyCheck pricing

Community listing

Development

QR code

Create an easy to read QR code and URL shortener

◇ Reported: No keyCheck pricing

Community listing

Development

QR code

Generate and decode / read QR code graphics

◇ Reported: No keyCheck pricing

Community listing

Development

QR Code Crafter

Generate static QR codes in SVG, PNG, JPG, WebP, PDF, or EPS

◇ Reported: No keyCheck pricing

Community listing

Development

Qrcode Monkey

Integrate custom and unique looking QR codes into your system or workflow

◇ Reported: No keyCheck pricing

Community listing

Development

QuickChart

Generate chart and graph images

◇ Reported: No keyCheck pricing

Community listing

Development

ReqRes

A hosted REST-API ready to respond to your AJAX requests

◇ Reported: No keyCheck pricing

Community listing

Development

RSS feed to JSON

Returns RSS feed in JSON format using feed URL

◇ Reported: No keyCheck pricing

Community listing

Development

RubyGems

Ruby gem metadata, versions, dependencies and search

◇ Reported: No keyCheck pricing

Community listing

Development

Serialif Color

Color conversion, complementary, grayscale and contrasted text

◇ Reported: No keyCheck pricing

Community listing

Development

SHOUTCLOUD

ALL-CAPS AS A SERVICE

◇ Reported: No keyCheck pricing

Community listing

Development

Sonar

Project Sonar DNS Enumeration API

◇ Reported: No keyCheck pricing

Community listing

Development

Statically

A free CDN for developers

◇ Reported: No keyCheck pricing

Community listing

Development

Thunder Client

API testing tool

◇ Reported: No keyCheck pricing

Community listing

Development

TinyMind Agent Tools

Free APIs by an AI agent on a VPS: actor lookup, word-of-the-day, poems, jokes, ping

◇ Reported: No keyCheck pricing

Community listing

Development

Wandbox

Code compiler supporting 35+ languages mentioned at wandbox.org

◇ Reported: No keyCheck pricing

Community listing

Language

Chinese Character Web

Chinese character definitions and pronunciations

◇ Reported: No keyCheck pricing

Community listing

Language

Chinese Text Project

Online open-access digital library for pre-modern Chinese texts

◇ Reported: No keyCheck pricing

Community listing

Language

Free Dictionary

Definitions, phonetics, pronounciations, parts of speech, examples, synonyms

◇ Reported: No keyCheck pricing

Community listing

Language

Indonesia Dictionary

Indonesia dictionary many words

◇ Reported: No keyCheck pricing

Community listing

Language

Wiktionary

Collaborative dictionary data

◇ Reported: No keyCheck pricing

Community listing

Documents & Productivity

DocStruct

AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV

◇ Reported: No keyCheck pricing

Community listing

Documents & Productivity

Vector Express v2.0

Free vector file converting API

◇ Reported: No keyCheck pricing

Community listing

Documents & Productivity

WakaTime

Automated time tracking leaderboards for programmers

◇ Reported: No keyCheck pricing

Community listing

Email

AGPC Domain Check

Check a domain's SPF, DKIM, DMARC and MX with a graded shareable report

◇ Reported: No keyCheck pricing

Community listing

Email

Best Temp Mail

Disposable inboxes for automated email testing, with OTP extraction

◇ Reported: No keyCheck pricing

Community listing

Email

Disify

Validate and detect disposable and temporary email addresses

◇ Reported: No keyCheck pricing

Community listing

Email

DropMail

GraphQL API for creating and managing ephemeral e-mail inboxes

◇ Reported: No keyCheck pricing

Community listing

Email

Email Validator by LifeStep

Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes

◇ Reported: No keyCheck pricing

Community listing

Email

EVA

Validate email addresses

◇ Reported: No keyCheck pricing

Community listing

Email

Guerrilla Mail

Disposable temporary Email addresses

◇ Reported: No keyCheck pricing

Community listing

Email

Kickbox

Email verification API

◇ Reported: No keyCheck pricing

Community listing

Email

mail.gw

10 Minute Mail

◇ Reported: No keyCheck pricing

Community listing

Email

mail.tm

Temporary Email Service

◇ 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 →