CONTINUOUSLY CRAWLED & HAND-CLAIMED

Every API on the internet, indexed.

We file public APIs as registry entries. Search the index, claim your listing, and — when you're ready — sell access through our marketplace.

POPULAR: development open data geocoding finance games & comics

№ APD-00012 UNCLAIMED

Abstract IP Geolocation

Geolocate website visitors from their IPs

auth: api-key · spec: not published · pricing: freemium

seed-2022 YOURS? CLAIM IT →

FROM THE INDEX № APD-00879 · open data nhs scotland № APD-02176 · numlookup № APD-00285 · core № APD-02095 · goldprice.dev № APD-01575 · gov authorized partner api specification

The Index

54 CATEGORIES · 2,359 LISTINGS

01 animals 25 02 anime 19 03 Anti-Malware 15 04 Art & Design 26 05 Artificial Intelligence 19 06 Authentication & Authorization 7 07 Blockchain 78 08 Books 27 09 Business 73 10 Calendar 20 11 Cloud Storage & File Sharing 15 12 Continuous Integration 11 13 Cryptocurrency 90 14 Currency Exchange 20 15 Data Validation 9 16 Development 353 17 Dictionaries 13 18 Documents & Productivity 52 19 Email 32 20 Entertainment 24 21 Environment 21 22 Events 4 23 Finance 117 24 Food & Drink 26 25 Games & Comics 102 26 Geocoding 123 27 Government 101 28 Health 35 29 Jobs 24 30 Machine Learning 37 31 Messaging & Email 17 32 Music 34 33 News 21 34 Open Data 128 35 Open Source Projects 7 36 Patent 4 37 Payments & Fintech 18 38 Personality 25 39 Phone 25 40 Photography 30 41 Programming 1 42 Science & Math 43 43 Security 55 44 Shopping 61 45 Social 64 46 Sports & Fitness 48 47 Test Data 30 48 Text Analysis 50 49 Tracking 13 50 Transportation 94 51 URL Shorteners 20 52 Vehicle 10 53 Video 97 54 Weather 36

From the index

GET FEATURED → · SPONSOR A CATEGORY →

№ APD-00012 UNCLAIMED

Abstract IP Geolocation

Geolocate website visitors from their IPs

auth: api-key · spec: not published · pricing: freemium

YOURS? CLAIM IT →

№ APD-02355 UNCLAIMED

49 Gallery Historical Data

Free no-signup REST API for normalized historical records, 25 daily-updated reference series, OpenAPI 3.1 and CORS.

auth: unknown · spec: not published · pricing: unknown

YOURS? CLAIM IT →

№ — OPEN SLOT

Your API, right here.

A featured entry spends 7 days in this row — seen by every visitor to the index. Stamped, because paid placement always is.

$39 · 48 h review · 7 days featured

FEATURED ENTRY TAKE THE SLOT →

FOR DEVELOPERS

Find the API that actually fits.

01Search and filter the whole index — by auth model, spec format and category.

02Registry records show what the crawler actually observed — dead links included.

03Structured endpoint pages, built from each API's own OpenAPI spec.

BROWSE THE INDEX →

FOR API OWNERS

Your API is probably already in here.

01Claim your listing — one click with an email on your domain, or a DNS record.

02The stamp flips to VERIFIED OWNER and the entry is yours.

03Get seen: featured entries and one sponsored slot per category.

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Get your API in front of the people searching for one.

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FEATURED ENTRIES 7 days on the homepage, $39. Stamped, capped at three, first come first served. SPONSORED CATEGORIES Own the only slot in your category for 30 days — the listing page and every entry in it. THE DATASET The index as data — every listing, spec and observation. Licensing opens soon; write to us.