Free Public APIs for Developers and Agents
Free public web APIs that developers and AI agents can call. Entries come from the open public-apis list; each link was checked automatically (HTTP status) on the date shown, which says the site responded, not that the API is good.
ddownload
File Sharing and Storage
dead-drop
Ephemeral zero-knowledge encrypted data sharing
Deep Blue Alpha
Real-time Ethereum whale wallet tracking, DEX trades, net flow, and conviction scoring
DeepAI
Provides AI-powered APIs for text generation, image processing, and more
Deepcode
AI for code review
DeepDNA
Cited gene, variant and CPIC drug-gene lookups for developers and AI agents
Deezer
Music
DefiLlama
Open and transparent DeFi data, TVL, coin prices, volumes, and yields
Degenscan Intel
Hyperliquid funding on every dex (HIP-3 incl.), cross-dex spreads, event feed; free trial key
Degenscan Intel Macro
U.S. Treasury auctions, stablecoin supply, Brazil crypto-dollar premium vs BCB PTAX; free trial key
Descripio Amazon Reviews
Amazon product reviews for 12 marketplaces
Destiny The Game
Bungie Platform API
Detect Language
Detects text language
Deutscher Bundestag DIP
This API provides read access to DIP entities (e.g. activities, persons, printed material)
Dev.to
Access Forem articles, users and other resources via API
DevITjobs UK
Jobs with GraphQL
DevLifeCheck
Security-update end dates, recalls and evidence for 1,300+ phones, tablets, Chromebooks and routers
Diagrams.so
Generate editable draw.io architecture diagrams from text or infrastructure code
Dialogflow
Natural Language Processing
Dicebear Avatars
Generate random pixel-art avatars
Dictum
API to get access to the collection of the most inspiring expressions of mankind
Digi-Key
Retrieve price and inventory of electronic components as well as place orders
Digimon Information
Provides information about digimon creatures
Digimon TCG
Search for Digimon cards in digimoncard.io
DigitalOcean Status
Status of all DigitalOcean services
DigMyName
Domain availability and registrar pricing across 52 TLDs
Disban
Classify email domains as disposable, free, alias, testing or parked to block fake signups
DiscGolf
Structured disc golf course data
Disclosed Capitol
US congressional & executive-branch stock trade disclosures (STOCK Act + OGE)
Discogs
Music
Discord
Make bots for Discord, integrate Discord onto an external platform
Disify
Validate and detect disposable and temporary email addresses
Disney
Information of Disney characters
Disqus
Communicate with Disqus data
DistrictAPI
US school districts and schools by address, with enrollment and boundaries
DocCheap
Read passports, ID cards and driver's licences into JSON, $0.01 per recognised document
Docker Hub
Interact with Docker Hub
DocStruct
AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV
Dog Facts
Random dog facts
Dog Facts
Random facts of Dogs
Dogs
Based on the Stanford Dogs Dataset
Domain Info by LifeStep
DNS records, SPF/DMARC detection and TLS certificate expiry
Domain Intelligence
DNS, WHOIS/RDAP, SSL, subdomain enumeration, and email security in one parallel call
DomainDb Info
Domain name search to find all domains containing particular words/phrases/etc
Domainsdb.info
Registered Domain Names Search
Dota 2
Provides information about Player stats , Match stats, Rankings for Dota 2
DotaSense Timings
Reviewed Dota 2 objective timings in JSON and CSV
dotsweep
Domain availability across 1200+ TLDs with registration and renewal prices
DoughMatrix
Sourdough and pizza dough formula calculators: true hydration, DDT, fermentation windows
DownStatus
Real-time status for GitHub, AWS, Discord and 90+ services
Dribbble
Discover the world’s top designers & creatives
Drillr
Fundamentals, filings, earnings, ownership and events for US, China and Japan equities
Drivet URL Shortener
Shorten a long URL easily and fast
Dropbox
File Sharing and Storage
DropMail
GraphQL API for creating and managing ephemeral e-mail inboxes
Drupal.org
Drupal.org
Ducks Unlimited
API explorer that gives a query URL with a JSON response of locations and cities
Dudelytics
Productive crypto indices, daily benchmarks, sector indices and market-stress data
DummyImage
Generate placeholder images with custom size, colors and text
DummyJSON
Fake REST API with products, users, posts, comments, todos and more
Dune
A simple API which provides you with book, character, movie and quotes JSON data
Dungeons and Dragons
Reference for 5th edition spells, classes, monsters, and more
Dungeons and Dragons (Alternate)
Includes all monsters and spells from the SRD (System Reference Document) as well as a search API
DunkAPI
NBA, WNBA and college basketball: play-by-play, shot locations, box scores and sportsbook odds
Dwellir
RPC endpoints for 150+ blockchain networks, including Ethereum, Solana, Polkadot and Hyperliquid
dYdX
Decentralized cryptocurrency exchange
DynaPictures
Generate Hundreds of Personalized Images in Minutes
eBay
Sell and Buy on eBay
eBird
Retrieve recent or notable birding observations within a region
Econdb
Global macroeconomic data
Economia.Awesome
Portuguese free currency prices and conversion with no rate limits
EconPulse
Live economic data — CPI, PPI, energy, treasury rates, BTC premium
eCourtsIndia
Indian court case status, judgments, and hearing schedule API
Edamam
Food and nutrition data API with recipe search
Edamam nutrition
Nutrition Analysis
Edamam recipes
Recipe Search
Edgepedia
Search and read Edgepedia, a free and growing encyclopedia with citations
Edgepedia
Search and read Edgepedia, a free and growing encyclopedia with citations
Edgrapi
US government data as JSON: SAM.gov contract opportunities, USAspending awards, Grants.gov grants
EditalMD
Brazilian public procurement (PNCP) notices as Markdown with deadlines and requirements
EIA Open Data
US energy statistics: electricity, petroleum, gas
eidosSpeech
Free text-to-speech API with 1,200+ neural voices in 75+ languages
Election
Source-linked U.S. election and civic records with coverage limits
ELI
Natural Language Processing Tools for Thai Language
Email Spam Tester
Send a test message and get a spam score, 41 checks with RFC citations and a fix plan
Email Validation
Validate email addresses for deliverability and spam
Email Validator by LifeStep
Validate email syntax and MX, detect disposable/role addresses, suggest typo fixes
EmailJS
Send emails directly from client-side JavaScript without a backend server
EmailRep
Email address threat and risk prediction
Emboss
Make PDF forms fillable, fill them from JSON or documents, and read filled forms back
EmojiHub
Get emojis by categories and groups
ENA
Nucleotide sequences, genomes and raw reads archive
EndOfLife.date
Software end-of-life dates and support lifecycles
English Random Words
Generate English Random Words with Pronunciation
Enigma Public
Broadest collection of public data
EOD Historical Data
Real-time and historical stock market data with 150+ exchanges
EOSL
Hardware end-of-sale and end-of-service-life dates by part number, source-linked
EPA
Web services and data sets from the US Environmental Protection Agency
EPO
European patent search system api
ERstat
Live Canadian emergency room closures and service disruptions, by province