Top Developer APIs Startups in 2024

Computers are the most powerful tools to exist in the history of humanity. Today, only a relative few—professional software developers—can use this superpower to its fullest extent. This has created an unbalanced world where there are programmers and those who consume their programs. Replit is changing that dynamic by bringing the next billion software creators online.

Sendbird is trusted by 4000 of the world’s most popular apps – including DoorDash, Match Group, Noom, and Yahoo Sports – to power messages between businesses and over 300 Million people every month; to build relationships and get things done. The company offers an award-winning communication platform that modern digital experiences are built on, unlocking the potential of unified customer communications across omnichannel business messaging, in-app chat, voice, video, and AI virtual assistants. Headquartered in California, Sendbird is backed by ICONIQ, Softbank, Tiger Global Management, Y Combinator, and other reputable investors.

Mashape powers API Driven Software with many leading products including Kong (Open-Source API Gateway), Galileo (API Analytics), Marketplace (API Hub) and Gelato (Dev Portals). Mashape is funded by tier 1 VC firms including Index Ventures, NEA, CRV, Stanford University, Jeff Bezos (Amazon) and Eric Schmidt (Google).

Boost makes it simple for companies in any category – from leading technology brands to insurtech startups – to offer white-labeled digital insurance solutions to their customers. Boost’s partners can be live in a fraction of the time it takes with traditional insurance companies. Our infrastructure-as-a-service (IaaS) platform makes it simple to build into and monetize the insurance vertical by packaging all the back-end components needed to develop, launch, and manage a program including 'A'-rated paper, dedicated reinsurance capacity, claims admin, and automated compliance - all offered through our API-driven and proprietary policy administration system. Technically, we’re a fully licensed managing general agency. We’re just redefining what that means.

Founded in 2021, Method enables real-time access to user financial data and enables seamless liability repayment. Method’s mission is to make personal finance more autonomous. With Method’s APIs, financial institutions, credit unions, banks, and financial management apps can embed loan repayment, data, balance transfers, and bill pay automation into their user journey. As a result, Method is improving accessibility and control over financial information via open finance. We’re a Series A start-up and are backed by our partners, advisors, and investors from Andreessen Horowitz, Truist Ventures, Y Combinator, Ardent Ventures, Abstract Ventures, SV Angel, Truebill, Upstart, and more.

Algolia is the search-as-a-service platform that enables companies of all sizes to deliver fast and relevant digital experiences that drive real results. With Algolia, consumers are able to find and discover what they want easily across web, mobile, and voice. Algolia allows developers and business teams to build and optimize engaging search experiences to increase online engagement, conversion and revenue. --- Founded in 2012, Algolia is headquartered in San Francisco with offices in Paris, London, New York, & Atlanta. Algolia has over 7,500 customers in 100+ countries, powering 20,000+ applications, and serving 70+ billion queries monthly. To learn more about Algolia visit algolia.com.

The world is moving towards more standardized, open, and interconnected data systems. However, employment infrastructure remains complex, closed, and fragmented. Our mission is to democratize access to the infrastructure that underpins the employment sector and unlock much-needed innovations and create tremendous economic activities for both employers and employees. We're looking for individuals who think about problems holistically and in-depth, who are relentlessly curious, self-starters, and determined to drive ideas from inception through to completion. Finch is a Series A Y-Combinator company backed by top investors like General Catalyst, Menlo Ventures, Homebrew, and angel investors from companies like Plaid, Brex, Digits, Ramp, and Mercury. Customers like Carta, Betterment, Human Interest, Mainstreet, and more are already building their products on us. Come build with us!

Enigma builds world-class data infrastructure, developer-friendly APIs, and intelligent tools that radically transform how businesses interact with each other. By engineering better attributes from the ground up and telling a more complete story, we empower our customers with the confidence they need to automate key business decisions. We’re a team of curious, driven individuals with diverse backgrounds and skills, but we’re all passionate about engineering deeper understanding through data—together.

Stripe is a software platform for starting and running internet businesses. Millions of businesses rely on Stripe’s software tools to accept payments, expand globally, and manage their businesses online. Stripe has been at the forefront of expanding internet commerce, powering new business models, and supporting the latest platforms, from marketplaces to mobile commerce sites. We believe that growing the GDP of the internet is a problem rooted in code and design, not finance. Stripe is built for developers, makers, and creators. We work on solving the hard technical problems necessary to build global economic infrastructure—from designing highly reliable systems to developing advanced machine learning algorithms to prevent fraud.

At every company, there's someone who's most painful job is wrangling CSV files in Excel. OneSchema (oneschema.co) makes cleanup of messy CSVs 10x faster (demo). Our product is smart spreadsheet that makes data cleansing as simple as a few clicks. Our vision is to automate the “long tail of ETL” processes that today are painstaking, manual, and repetitive. We get our customers out of spreadsheets and back to the meaningful, creative work they love.