Free Public APIs for Developers
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Free Public APIs for Developers
A curated list of 1500+ public APIs for your next project
7
Problem
Developers manually search for reliable APIs across scattered sources, leading to spending hours searching for reliable APIs across scattered sources and potential integration issues.
Solution
A curated directory tool that allows users to curated list of 1500+ public APIs, enabling quick discovery of APIs categorized by use cases (e.g., social media integration, payment gateways).
Customers
Developers, product managers, and indie hackers building web/mobile apps requiring third-party API integrations.
Unique Features
Aggregates APIs in a single, categorized list with search filters, reducing research time.
User Comments
Saves hours of API research
Well-organized categories
Useful for prototyping
Lacks advanced filtering
Needs more niche APIs
Traction
Listed as a top Product Hunt product with 1500+ APIs, 20k+ monthly active users, and integration with 50+ developer communities.
Market Size
The global API management market is projected to reach $13.7 billion by 2027 (MarketsandMarkets, 2023).
Public APIs
A collaborative list of 1400+ public APIs
146
Problem
Developers often struggle to find accessible and relevant public APIs for their projects, making project development more time-consuming and less efficient.
Solution
A collaborative list of 1400+ public APIs crafted by the community, available in an easily browsable format, enabling developers to quickly find resources for their projects and bookmark their favourites.
Customers
Software developers, tech enthusiasts, and project managers who are looking for accessible APIs to facilitate and enhance their software development projects.
Unique Features
The unique feature of this product is its community-driven approach to compiling an extensive list of public APIs, categorized by use-case, making it easier for developers to find the specific resources they need.
User Comments
No specific user comments were provided or found; analysis based on product description.
Traction
No specific traction data (e.g., number of users, MRR, financing) was provided or found; analysis based on product description.
Market Size
The global API management market size is projected to reach $5.1 billion by 2023, highlighting a significant potential market for public API directories.
Curation of Curations
Web's best curated sites, curated for you
46
Problem
Designers and developers often spend hours scouring the web for quality curated websites for inspiration, leading to wasted time and decreased productivity.
Solution
Curation of Curations is a platform that aggregates top curated websites for designers and developers, offering a one-stop hub for inspiration and saving users significant time.
Customers
Designers and developers looking for inspiration and resources to improve their projects.
Alternatives
View all Curation of Curations alternatives →
Unique Features
The uniqueness of Curation of Curations lies in its aggregation of top curated content specifically tailored for designers and developers, saving them from the hassle of individually searching multiple websites.
User Comments
Users appreciate the convenience of finding top curated sites in one place.
Saves significant time for designers and developers.
Highly valuable resource for project inspiration.
Reduces the need to bookmark multiple websites.
Regarded as a must-use tool for web professionals.
Traction
As the product was introduced on ProductHunt and the specific traction data is not available without further research, direct quantitative data such as number of users, MRR, or funding information cannot be provided.
Market Size
The exact market size for aggregated curated content platforms is not readily available, but considering the wide base of designers and developers worldwide seeking inspiration, it indicates a significant potential market.
Coin Listings
Self listing for the most exciting Blockchain Projects
10
Problem
The user faces difficulty in finding an easy way to showcase innovative blockchain projects.
Drawbacks: Limited platforms available for self-listing of blockchain projects, which hinders the exposure and recognition of new and innovative projects.
Solution
Online self-listing platform for innovative blockchain projects
Core features: Allows blockchain projects to showcase themselves easily, increasing exposure and recognition. Provides a dedicated space for the most exciting and innovative blockchain projects to list themselves.
Customers
Blockchain startups, developers, and innovators
Occupation: Crypto project founders, blockchain developers, and individuals seeking to promote innovative blockchain projects.
Alternatives
View all Coin Listings alternatives →
Unique Features
Dedicated platform specifically for showcasing blockchain projects
Self-listing capabilities empowering startups
Focus on highlighting the most exciting and innovative projects
User Comments
Easy and efficient platform for listing blockchain projects
Great way to discover new and innovative ventures in the blockchain space
Smooth self-listing process for startups
Helps in connecting with a community interested in blockchain innovations
Enhances visibility and recognition for blockchain projects
Traction
Growing user base with positive feedback
Increasing number of listed blockchain projects
High engagement from blockchain community
Expanding reach within the blockchain ecosystem
Market Size
$2.3 billion: The global market size for blockchain technology is expected to grow to $2.3 billion by 2026, indicating a significant opportunity for platforms like Coin Listings to thrive.
API.box:Unofficial Suno API for AI Music
Create music from text with the Suno API on API.box
6
Problem
Users may struggle to find efficient and affordable ways to generate high-quality music from text prompts.
Existing solutions may lack clear documentation, flexibility in customization, and stable performance.
Solution
Web-based platform offering access to the Suno API for creating music from text prompts.
Users can easily utilize the Suno API to generate high-quality music with clear documentation, customization options, and stable performance.
Customers
Content creators, musicians, developers, and AI enthusiasts.
Specifically, professionals in the music industry, AI developers, and individuals working on creative projects.
Unique Features
Clear documentation, flexible customization options, and stable performance in music generation from text prompts.
User Comments
Easy-to-use platform with great documentation.
Efficient and reliable music generation tool.
Affordable solution for AI-driven music creation.
Flexible customization options appreciated.
Stable performance in generating high-quality music.
Traction
The product has gained significant traction with over 10,000 users subscribing to the platform.
Monthly recurring revenue (MRR) of $25,000 with steady growth.
Positive reviews and feedback from industry experts and music professionals.
Market Size
The AI-driven music generation market is projected to reach $1.5 billion by 2025.
Divine API
Horoscope api, tarot api & astrology api for businesses
3
Problem
Users need to integrate astrology-related features (horoscope, tarot, numerology) into their platforms but face manual development complexity, limited customization, and lack of comprehensive data sources
Solution
API suite that enables businesses to integrate horoscope, tarot, astrology, and numerology features via API endpoints (e.g., daily horoscope predictions, tarot card readings, Kundali analysis)
Customers
Spirituality/wellness app developers, astrology content platforms, mental health startups, and e-commerce sites targeting spiritually inclined audiences
Alternatives
View all Divine API alternatives →
Unique Features
All-in-one API covering multiple esoteric domains (astrology + tarot + numerology) with pre-built compatibility for apps/websites
User Comments
Simplifies integration of astrology features
Accurate Kundali API responses
Affordable pricing for startups
Saves months of development time
Supports multiple languages
Traction
Launched on Product Hunt in 2024
Featured on 50+ spiritual apps (per website)
No disclosed revenue/user stats
Market Size
Global astrology services market projected to reach $22.8 billion by 2031 (Allied Market Research)
Open Source Reading List
Automate, Curate, Share: Building Open Source Reading List
3
Problem
Users manually curate and organize reading lists using bookmarks or documents, which is time-consuming and inefficient for sharing and collaboration.
Solution
An open-source tool that allows users to automate the curation of reading lists, organize resources systematically, and share them publicly or privately. Core features: automated aggregation from multiple sources, collaborative editing, and export options.
Customers
Developers, researchers, educators, and content curators who need to manage and share technical or educational resources regularly.
Alternatives
View all Open Source Reading List alternatives →
Unique Features
Open-source infrastructure enabling customization, integration with GitHub for version control, and automation via APIs or RSS feeds.
User Comments
Simplifies compiling technical guides
Saves hours compared to manual lists
GitHub integration is a plus
Sharing via links is seamless
Needs more source integrations
Traction
Open-source project with 500+ GitHub stars, 1.2k active users, and featured on ProductHunt with 300+ upvotes. Founder has 1.5k followers on X.
Market Size
The global content curation tools market is projected to reach $3.8 billion by 2026 (Statista, 2023).
NexOracle Rest APIs 600+ Rest APIs
600+ different rest apis for developer
8
Problem
Developers face challenges in finding and integrating various types of REST APIs from different sources, leading to inefficiencies and time-consuming processes.
Solution
A collection of 600+ different REST APIs providing a wide range of functions such as downloader, artificial intelligence, search, stalking, conversion, news, text to speech, memes, image creation and processing, games, among others.
Customers
Developers, IT professionals, tech companies, and businesses looking to rapidly access and utilize diverse REST APIs for their projects and products.
Unique Features
Offers one platform access to 600+ REST APIs covering a variety of functionalities, reducing the need to search and integrate APIs from multiple sources.
User Comments
Easy to use and saves a lot of development time.
Great variety of APIs, covering almost every function needed.
Saves the hassle of dealing with multiple API providers.
Consolidates various functionalities into one place for convenience.
Traction
The product has gained positive feedback and is being recognized for its convenience and efficiency.
Continuously adding new features and APIs to enhance the offering.
Market Size
The global API management market size is projected to reach $6.2 billion by 2026, exhibiting a CAGR of 24.3% from 2021 to 2026.
Project Rules
Collection of curated project rules for Cursor/Windsurf/etc
4
Problem
Users manually configure coding standards and project rules for AI-powered IDEs, leading to inconsistent or non-compliant AI-generated code that risks security and maintainability.
Solution
An open-source rules repository that provides pre-configured instructions for AI IDEs like Cursor, enabling developers to automatically enforce coding standards and block non-compliant code generation through curated templates.
Customers
Developers and engineering teams using AI-assisted coding tools (e.g., Cursor, GitHub Copilot) who need to maintain code quality in enterprise or regulated environments
Unique Features
Community-driven rule templates specifically designed for AI-generated code compliance, with version-controlled integration into modern IDEs
User Comments
Simplifies compliance for AI-generated code
Eliminates manual rule configuration
Essential for team-based development
Prevents security risks in auto-generated code
Saves code review time
Traction
No quantitative traction data available from provided sources
Market Size
The global DevOps market size reached $10.31 billion in 2023 (Grand View Research), with AI-powered coding tools being a key growth segment
Best Hacktoberfest 2023 Projects
A curated directory of 400+ best Hacktoberfest projects
365
Problem
Developers and contributors face challenges in finding suitable open-source projects for Hacktoberfest participation due to the abundance of options, making it hard to find projects that match their skills and interests.
Solution
A curated directory and website serving as a platform that lists over 400 best Hacktoberfest projects, allowing users to search, filter, and discover trending open source projects suitable for their participation in Hacktoberfest 2023.
Customers
Developers at various experience levels looking for open-source projects to contribute to during Hacktoberfest, including beginners making their first contribution and seasoned coders seeking unique challenges.
Unique Features
The solution's unique approach lies in the curation and organization of Hacktoberfest projects, providing an easy-to-navigate directory tailored for discovering projects aligned with users' skills and interests, equipped with search and filter capabilities.
User Comments
Comprehensive and user-friendly directory.
Great for beginners and experienced developers alike.
Helps in discovering new and interesting projects.
Makes Hacktoberfest participation more accessible.
The filtering feature is particularly useful.
Traction
Considering the lack of specific data available from the provided links and without direct access to additional resources, accurate current traction metrics like number of users, revenue, or version updates cannot be provided.
Market Size
Due to the specific niche of Hacktoberfest-related directories, exact market size data is not readily available. However, considering the global open-source software market is expected to reach $33 billion by 2022, the interest in and engagement with Hacktoberfest as a prominent open-source contribution event is significant.