Who Belongs to the API Billionaires Club?

Adam DuVander, May 25th, 2011

ProgrammableWebWe write a lot about the growth in the number of APIs on ProgrammableWeb. But how about usage? Some APIs see so many requests that they measure in billions. We refer to these companies as the API Billionaires Club. The image below, which comes from ProgrammableWeb Founder John Musser’s talk later today at Glue, shows the big names that make up this exclusive club (update: the APIs State of the Market 2011 slides are up now).

All of Twitter’s official applications use its API, including Twitter’s web client. So, naturally the 140 character service tops the list with 13 billion API calls per day. In addition to its internal use, Twitter is one of the best examples of a vibrant developer ecosystem, despite complaints from some that Twitter is squeezing out the force that made it popular.

Google’s spot on the list perhaps puts a scale on Twitter’s achievements. The 5 billion calls per day to the search giant is spread amongst the 88 Google APIs. There’s likely little internal use of Google APIs, so from a pure external developer standpoint the number of calls to Google is astounding.

Facebook gets a lot of guff for its lack of openness, with many calling it a walled garden. Though the complaints still exist, they were quieted with last year’s introduction of the Facebook Graph API, which provides access to much of the content created and shared on the worldwide social network. However, Facebook has been a member of the API Billionaires Club since before its opened graph, showcasing the longtime reach of its developer network.

Other API Billionaires may only measure in billions per month, but its as impressive given their own scale. Hardly a Google or Facebook, NPR used its API and the 1.1 billion API-delivered stories to double its web traffic. The single Netflix API supports hundreds of devices. And the Salesforce.com API, which makes up 50% of the company’s traffic, is often credited with the Software-as-a-Service pioneer’s success.

The API Billionaires Club, like the growing number of APIs, provides important stories of success. These stories will encourage continued growth of APIs–in both numbers and usage–as mainstream companies continue to pick up on what we’ve all known for at least six years: the web is not just another channel for our messages. The web is a platform upon which the future is being built.

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52 Responses to “Who Belongs to the API Billionaires Club?”

May 26th, 2011
at 8:39 am
Comment by: Open APIs: la economía de las plataformas 2011

[...] resúmen del estado de las plataformas que usan APIs en 2011 hecho por la gente de Programable Web en Glue Conf, me gusta especialmente por 3 puntos simples: a) Ver como las APIs están creciendo en [...]

May 26th, 2011
at 10:00 pm
Comment by: Linkwertig: G8, API, Google Maps, Social Media » netzwertig.com

[...] Aufrufe pro Monat erhalten. Twitter liegt mit 13 Milliarden Calls pro Tag an der Spitze.» Who Belongs to the API Billionaires Club? Google Maps Foursquare-Neid: Google will wirklich, dass wir uns vermehrt in Locations [...]

May 27th, 2011
at 7:18 am
Comment by: Nash

Great presentation! But isn’t measuring requests a bad KPI for APIs? For example, Twitter uses a terrible poll-style API where every client needs to ping it again and again (once a minute or more) just to see if there’s anything new. Wouldn’t it be better to measure number of API consumers or apps etc?

May 27th, 2011
at 8:13 am
Comment by: Tiago Dória Weblog » Blog Archive » Como estão as APIs?

[...] O ProgrammableWeb publicou um estudo sobre o uso das APIs  – APIs State of the Market 2011. [...]

June 2nd, 2011
at 10:09 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | MakeNoise : MakeNoise

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 10:12 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | User Manual Guide

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 10:13 am
Comment by: Crazy Articles Directory » Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 10:14 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click - Daily Gizmo News | Daily Gizmo News

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 10:32 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | NixTimes Daily News

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 11:08 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click « IphoneAccessoires

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 11:15 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | 5iv.info

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 11:32 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | BlackberryAccessoires

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 12:40 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | TxtJive.Com

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June 2nd, 2011
at 12:41 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | MotorolaAccessoires

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June 2nd, 2011
at 1:00 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click « HTCAccessoires

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June 2nd, 2011
at 1:00 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | Everheartz15's Tech Blog

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June 2nd, 2011
at 1:07 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | SamsungI9000

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 1:12 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | Bitmag

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 2:45 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click « miltonkeynesbedsits.co.uk

[...] idea and position your business in a market that’s on the rise.) As you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 6:02 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click « Team National News

[...] idea and position your business in a market that’s on the rise.) As you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 10:13 pm
Comment by: I Can Be Whatever I Want Here » Blog Archive » Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click

[...] idea and position your business in a market that’s on the rise.) As you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 2nd, 2011
at 10:49 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click » ducatimotorrad.com

[...] idea and position your business in a market that’s on the rise.) As you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 3rd, 2011
at 12:47 am
Comment by: APIの総合百貨店をねらうMashapeが今日から非公開ベータ–自分のAPIも売れるぞ!

[...] みなさんもお気づきと思うけど、このところAPIがブームだ。TwitterのAPIは1日に150億回呼び出されている。昨年のGoogleとFacebookはそれぞれ1日に50億回、Amazonが今S3に保存しているオブジェクトは260億以上あり、それにSaleforce.comはそのトラフィックの半分がAPIからだ。という次第だから、今日(米国時間6/2)から非公開ベータに入るMashapeは、このAPIブームの波に乗って稼ぎたいのだ。同社が提供するものは、デベロッパがAPIとそれに関するあらゆる情報を簡単に発見、配布、そして消費できるためのマーケットだ。 [...]

June 3rd, 2011
at 1:27 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | Blue suede shoes

[...] idea and position your business in a market that’s on the rise.) As you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 3rd, 2011
at 2:21 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | SamsungAccessoires

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 3rd, 2011
at 6:49 am
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | KaakoTech

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

June 7th, 2011
at 11:58 pm
Comment by: India open data, pneumatici italiani, prove tecniche di ipv6: conti e racconti « Webcartografie

[...] software per accedere, per esempio, a una piattaforma online e progettare applicazioni. Ecco da Programmableweb una raccolta di dati sulle richieste che arrivano a Facebook, twitter e altri giganti online. [...]

June 8th, 2011
at 8:53 am
Comment by: iPhone5&ipad2 » ShopSavvy API Calls Per Month: 100 Million

[...] and price system for ShopSavvy) is handling per day and per month. While we aren’t in the API Billionaires Club, we aren’t doing that shabby. PriceNark currently handles more than 3.3 million API calls per [...]

June 10th, 2011
at 6:08 am
Comment by: blackberry net » Blog Archive » ShopSavvy API Calls Per Month: 100 Million

[...] and price system for ShopSavvy) is handling per day and per month. While we aren’t in the API Billionaires Club, we aren’t doing that shabby. PriceNark currently handles more than 3.3 million API calls per [...]

June 15th, 2011
at 8:29 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | SociableNews.com

[...] you may have noticed, APIs are all the rage these da…. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling [...]

June 19th, 2011
at 9:13 pm
Comment by: Lessons public libraries could learn from startups « adventures on the edge of business and engineering

[...] public library is the ultimate API provider. A library is a platform. People get out of it whatever they want to get out. Different [...]

June 21st, 2011
at 1:37 pm
Comment by: My Netflix ready devices vs. my Seagate ready devices – The Storage Effect

[...] by: blog.programmableweb.com Share and [...]

June 23rd, 2011
at 3:35 pm
Comment by: 6.23.2011 Dallas tech startups | Surf Monkey

[...] Folks also published Barcode Scanning SDK for developers and opened up their API to third-parties. PriceNark (the inventory and price system for ShopSavvy) currently handles more than 3.3 million API calls per day, or just over 100 million API calls per month. Not yet in the API Billionaires Club [...]

July 22nd, 2011
at 3:30 pm
Comment by: Looks Like Klout is Ready to Join API Billionaires Club | Developer Community

[...] across social networks, appears ready to enter, what John Musser of ProgrammableWeb memes, the API Billionaires Club. Processing about one billion API calls per month (serving more than two billion API calls in only [...]

July 29th, 2011
at 9:59 am
Comment by: MailChimp Sees Some Serious Growth API | API Evangelist

[...] Mailchimp API is not quite in the billionaires club, but it shows that some solid investment and hard work around your API can really pay [...]

August 17th, 2011
at 12:55 pm
Comment by: Mashape, The Etsy Of Cloud Services, Goes Beta; Lets You Monetize Your APIs In A Click | Tech 2 Up

[...] you may have noticed, APIs are all the rage these days. Twitter attracts 15 billion API calls per day, Google and Facebook were pulling in 5 billion per [...]

August 19th, 2011
at 2:09 pm
Comment by: Elliot Turner

Here’s another for the list: As of August 2011, AlchemyAPI is now servicing more than 2 billion API calls monthly.

September 5th, 2011
at 3:50 pm
Comment by: billions of API calls per day « leroymason

[...] See the full article at Who Belongs to the API Billionaires Club? [...]

September 16th, 2011
at 12:01 am
Comment by: New API Billionaire: Text Extractor Alchemy

[...] semantic text mining Alchemy API is now a member of the API Billionaires Club. The service, which makes sense of raw unstructured data, averages 65-75 million requests per day, [...]

September 20th, 2011
at 9:35 am
Comment by: Who Belongs to the API Billionaires Club? | benjamin junior

[...] Who Belongs to the API Billionaires Club? This entry was posted in life by bjunior. Bookmark the [...]

October 4th, 2011
at 8:50 am
Comment by: Twitter Influence API Makes Klout a Billionaire

[...] The most popular Twitter ranking service, Klout, has used its API platform to boost its growth. The company, which is also expanding outside of Twitter, saw calls to its Klout API double in just a few months. The company is now clearly in the API billionaires club. [...]

October 29th, 2011
at 9:38 pm
Comment by: New API Billionaire: Text Extractor Alchemy | Bookmarks

[...] $(function(){ $("#startbox").html("The semantic text mining Alchemy API is now a member of the API Billionaires Club. The service, which makes sense of raw unstructured data, averages 65-75 million requests per day, [...]

December 28th, 2011
at 1:47 pm
Comment by: Influential or not, Klout now fields 7.5B API requests per month | VentureBeat

[...] Still, the 7.5 billion API calls per month figure is impressive for an up-and-coming, four year-old startup and proves that its reputation score has met with industry approbation for the most part. But Klout has got a ways to go before it joins the likes of the elite; Twitter, Google and Facebook all field billions of API requests per day. [...]

December 29th, 2011
at 12:36 am
Comment by: Influential or not, Klout now fields 7.5B API requests per month : Marketers-Network

[...] Still, the 7.5 billion API calls per month figure is impressive for an up-and-coming, four year-old startup and proves that its reputation score has met with industry approbation for the most part. But Klout has got a ways to go before it joins the likes of the elite; Twitter, Google and Facebook all field billions of API requests per day. [...]

December 29th, 2011
at 3:02 am
Comment by: Influential or not, Klout now fields 7.5B API requests per month | Tech News Aggregator

[...] Still, the 7.5 billion API calls per month figure is impressive for an up-and-coming, four year-old startup and proves that its reputation score has met with industry approbation for the most part. But Klout has got a ways to go before it joins the likes of the elite; Twitter, Google and Facebook all field billions of API requests per day. [...]

January 23rd, 2012
at 9:28 am
Comment by: Foursquare API Billionaire: “Thousands per Second”

[...] “We get thousands of API requests per second,” a Foursquare spokesperson told us. Do that math and you’re at billions per month, enough to put it somewhere in the middle of the API billionaires club. [...]

February 28th, 2012
at 4:39 pm
Comment by: meo (meo) | Pearltrees

[...] Who Belongs to the API Billionaires Club? Google’s spot on the list perhaps puts a scale on Twitter’s achievements. The 5 billion calls per day to the search giant is spread amongst the 88 Google APIs . There’s likely little internal use of Google APIs, so from a pure external developer standpoint the number of calls to Google is astounding. Facebook gets a lot of guff for its lack of openness, with many calling it a walled garden. [...]

April 9th, 2012
at 9:15 am
Comment by: The Morning Lowdown 05-26-11 — paidContent

[...] Who belongs to the API billionaires club? (Programmable Web) If you like this story, please share [...]

April 11th, 2012
at 12:01 am
Comment by: Are API Requests the New Hits?

[...] APIs have matured, we’ve celebrated the most popular ones by welcoming them to the API Billionaires Club. The billionaires are those who measure API requests in the billions–many per month, a few [...]

April 23rd, 2012
at 2:01 pm
Comment by: Higher, Faster, Klouter: Klout API v2 is coming

[...] space, and with Klout there is apparently a strong contestant for this year’s edition of the API billionaires club. Related ProgrammableWeb ResourcesLearn more Klout API [...]

April 24th, 2012
at 6:49 am
Comment by: Higher, Faster, Klouter: @Klout API v2 is coming « The Good Life In San Clemente – Darin R. McClure

[...] API space, and with Klout there is apparently a strong contestant for this year’s edition of the API billionaires club. Sponsored [...]

May 23rd, 2012
at 1:29 pm
Comment by: Which APIs Are Handling Billions of Requests Per Day?

[...] year ago we asked who belongs to the API billionaires club and listed several APIs that can count their API requests in the billions. Now there are many more [...]

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John Musser
Founder, ProgrammableWeb

Adam DuVander
Executive Editor, ProgrammableWeb. Author, Map Scripting 101. Lover, APIs.