Best APIs for Developers in 2025
Developers make over 400 billion API calls every month. If you're in the API development community, you'll know that the list is growing. And with the rise of social media platforms, it's no surprise that we deal with many categories. We realized we needed not just any APIs but a list of valuable APIs that balance design, functionality, and speed. The APIs we are about to recommend are easy to use. They come with extensive documentation, and you can test out their endpoints. Just be sure to check out the pricing by visiting their respective official websites.
Now let's get started.
TokAPI
TokAPI is no stranger to the API development community. It is a mobile network API that lets developers search for anything in seconds. You can use its Hashtag ID endpoint to search posts and videos by hashtags. The MusicID can look up music data, and you'll want to try out its trending categories and feed recommendations.
Google Search API
You didn't know Google Search had its API, right? It's powerful and gives you real-time responses. Google Search API will collect data from both image search and Google Web. It has mainly two endpoints it works with - web search and image search. Try it out and see it in action.
Deezer
What if you found an API that gave you access to a huge database of music, songs, and other playlists? Well, Deezer pulled it off. Search, Album, Comment, Editorial, Playlist, Genre, Radio, and Infos are its main endpoints. Developers can also partner with Deezer; the guidelines are listed on their official website.
Imagen
Imagen by ModelsLab is a text-to-image API that lets you create stunning visuals from text descriptions. It is a developer-first API and can also do image-to-image conversions. You can transfer styles, edit photos, mix images, and make edits. It comes with Inpainting and Outpainting API endpoints that are great for image repairs and can reconstruct visual artefacts. You can remove backgrounds, insert objects, and upscale images to 8k without facing quality losses or pixelation.
Video Fusion
Video Fusion by ModelsLab is targeted more towards artists, creators, filmmakers, and business professionals. You can make deepfakes, product demos, animations, and engaging video content. You can try it out in the Video Fusion Playground. ModelsLab also has a Scene Maker API that lets you create up to 5 custom scenes in one go. It’s excellent for making shorts, but you can extend clips and generate longer duration footage. We think upgrading to premium-tier subscriptions is worth it since you can access unlimited API calls, NSFW video generation, and more.
ModelsLab TTS API
ModelsLab TTS API is another gem on our list because of its convenient Discord integration. You can generate custom voiceovers in multiple languages, translate accents, and experiment with dialects and changing intonations. You can upload text scripts and get audio generated in real-time. You can pair this with the ModelsLab Song Generation API if you'd like to create background music. They are a great combo. Why do you need TTS? There’s not enough time to talk in the room sometimes. Also, if you’d like to convert speech to text, you can try ModelsLab’s transcription API. Its precision and accuracy are off the charts, making it perfect for AI voice note taking, subtitling, captioning, and other applications.
X API
Search tweets, track trends, post content, and analyze social conversations with this popular API. You can filter streams by keywords, locations, or users. X API enables automated posting, sentiment analysis, and social listening. You can build Twitter bots, marketing tools, or research applications. Developers get access to both historical and real-time data, making it valuable for social media management tools.
Spotify API
Access music metadata, manage playlists, analyze audio features, and control playback with the Spotify API. You can search for tracks, artists, and albums, get recommendations, and fetch user-specific data like followed artists. The API includes audio analysis features that detail tempo, key, and musical characteristics. This standard API integrates perfectly with music apps and recommendation systems.
GitHub API
Manage repositories, automate workflows, and interact with GitHub data. See open issues, view a pull request, and manage project boards. You can create CI/CD integrations, create development analytics software, and track code quality with the GitHub API. You can develop applications connecting users' GitHub accounts using GitHub OAuth. It is one of the best APIs for developers creating off-the-shelf software.
PayPal API
PayPal lets you process payments, handle subscriptions, and manage marketplace transactions with PayPal's API. You can create payment buttons, generate invoices, and process refunds. Its API supports international payments and currency conversions. You get detailed transaction reports and fraud protection features. As one of the most useful APIs for e-commerce, it includes REST and GraphQL interfaces for flexible integration. You can also try other common APIs for digital payments and transactions.
Amazon Product Advertising API
Tap into Amazon's product catalog, get price information, and make money from your website through affiliate links—search products by keyword, ASIN, or category. The API offers rich product information, images, price, and availability status. Use it to build comparison tools, shopping assistants, or affiliate sites. Developers building e-commerce tools and product discovery applications will find this API most useful.
Fashion API
ModelsLab’s Fashion API lets you take before-and-after shots and do style previews. It can also be used for virtual fitting, rendering clothing, designer accessories, and all fits. You can change previews by adjusting age, gender, body type, height, and other visual attributes. It’s perfect for trying out new items and enjoying virtual shopping experiences before purchasing and checking out. You can also use AI for trend analysis and get personalized fashion search recommendations.
Dropbox API
Integrate file storage, sharing, and sync with your applications. Upload, download, generate shared links, and monitor file changes through the API. File preview and search are enabled through the Dropbox API. Webhooks can be used to build real-time file collaboration features. It is one of the publicly accessible developer APIs for building document management or productivity applications.
Google Maps API
Embed maps, location search, directions, and place information in your applications. You can overlay interactive maps with your own markers and info windows. Google Maps API provides directions and distance calculations. As one of the best APIs for location-based services, it gives Street View imagery and 3D mapping features. Google has also offered its developers free API access since March 2025.
Stripe API
Stripe allows you to accept payments, send payouts, and manage businesses online. You can process credit cards, digital wallets, and local payment methods. Its webhook notifications update you on events like successful payments or failed charges. The API has excellent documentation and test mode features, making it a top API for developers growing e-commerce and dropshipping platforms.
Reddit API
Reddit is a fun place to be. You can now access content, retrieve posts and comments, and interact with the platform directly. You can fetch trending topics, search for content, and manage user accounts. Its API supports voting, commenting, and messaging features. You can build content aggregators, community management tools, or trend analysis applications. This is one of the interesting APIs for developers working with social content and community data.
Coinbase API
Use this cryptocurrency exchange API to buy, sell, and manage cryptocurrency transactions. You can also get real-time exchange rates, manage wallets, and process crypto payments. The API provides webhook notifications for transaction events. As the best crypto API for developers, it supports multiple currencies and includes extensive security features for safe crypto transactions across fintech apps and services.
OpenAI
The OpenAI API is a good choice if you’re looking for general-purpose AI APIs. You can talk to it and ask it to summarize documents, generate images, and do web searches. OpenAI also recently launched its most expensive offering till date, the o1-Pro API for developers.
Want to make mood boards and save your favourite pins to share with others? The Pinterest API makes viewing saved ads, users, and digital content convenient. It directly interfaces with the Pinterest website.
SendGrid
Send transactional and marketing emails with delivery analytics and campaign management. Personalize content, schedule sends, and track engagement metrics. The SendGrid API provides email validation and list management features. With template support and A/B testing capabilities, it's perfect for building email marketing platforms and notification systems.
Cloudinary API
Manage, optimize, and deliver images and videos for your applications. You can upload media, apply transformations, and generate responsive assets. Cloudinary API handles format conversions, quality optimization, and content delivery. You can add AI-powered tagging and moderation features.
Bitly
Bitly is great for shortening links and keeping track of them. You can use it to share content across different channels and extract useful stats. It’s very easy to use and has a no-fuss API.
Snowflake
The Snowflake SQL API is a REST API for viewing and updating information in the Snowflake database and building custom applications.
Slack
Slack has become a staple for team collaboration among enterprises. It is built with the Deno Slack SDK and recently supports Bolt frameworks. You will need a Slack account to use it.
Shopify
Shopify has virtual storefront APIs for aspiring dropshippers. They can read and write user data and integrate with other platforms. Developers need to authenticate these APIs, though they are subject to rate limits.
Did you know you can find the right talent with the LinkedIn API? It makes building new connections easy, filtering resumes, and posting jobs online. You can also manage profiles and post content.
Telegram
With the Telegram API, you can create animated stickers and bots and send messages to other users. Three kinds are offered, and Telegram's Gateway API lets you send verification codes.
Firebase API
Build and scale apps with backend services for authentication, databases, storage, and hosting. You can sync data in real-time, send push notifications, and analyze user behavior. Firebase API supports serverless functions and ML model deployment. Cross-platform SDKs are ideal for mobile and web applications that need robust backend infrastructure without managing servers.
Zendesk API
Build customer support integrations and extend help desk functionality. You can create and manage tickets, retrieve user data, and automate support workflows. Zendesk API provides access to knowledge base articles and community forums. You can build custom support portals, reporting dashboards, and ticket management systems.
Uncensored Chat API
Talk about anything without censorship or restrictions. Uncensored Chat by ModelsLab can be your programming assistant, writing guide, and daily questions and answers. You can also use it for doing NSFW roleplays.
Conclusion
These powerful APIs are considered some of the best APIs in 2025. You’ll get the ground running with them. We encourage experimenting with how they work. Test and try out their different applications. One of the best parts about using APIs is their flexibility and scalability. Follow the ModelsLab blog for more updates.
Best APIs for Developers FAQs
What is the meaning of API?
API stands for Application Programming Interface. It is software that acts as a gateway between two or more services, making interactions convenient. APIs can connect to apps, websites, and other services to give you access to various features.
Where are APIs used?
APIs are used in different business and service domains. They are involved in almost every action or transaction you make, such as making mobile payments on e-commerce platforms. APIs can also manage, deploy, and undeploy various applications. They are a fundamental building block of modern technology solutions and can link front-end and back-end operations.
What are some examples of APIs in real life that are used every day?
Weather apps, ride-sharing and food delivery APIs, and social media bots are great examples of everyday APIs. Online payment processing APIs used in fintech apps and banking services are also other APIs you use daily.
How to make an API call?
You must know the URL and HTTP method to make an API call. You will need to add headers and include a request body. You’ll also need the API authorization key to access it. Once you set up the API and make the call, the API will handle the response accordingly and return you.