Best 181 API Design Tools in 2025

Automatic background removal in seconds
Transparent background (PNG) or white background options
Integration with popular design programs, eCommerce sites, and computer environments
API for additional software integrations
Efficient workflow and time-saving tool

To use remove.bg, simply upload your photo and let the AI do the work. Within 5 seconds, the tool will automatically remove the background from your image, leaving you with a transparent background or the option to add a white background. For more convenience, remove.bg also offers plugins and tools for popular design programs, eCommerce sites, and computer environments.

Capture the world in lifelike 3D using iPhone's camera
Unmatched photorealism, reflections, and details
Fields Editor iOS app for editing captured 3D models
Luma API for generating high-quality photorealistic 3D assets and environments at scale
ARKit integration for augmented reality experiences
Support for popular 3D file formats like USDZ and GLTF
Ability to import and work with meshes from Blender
Utilizes advanced technologies including Neural Radiance Fields and Neural Rendering

To use Luma AI, simply download the iOS app from the App Store or access the web API. With the app, users can capture the real world in 3D by scanning objects or scenes using their iPhone's camera. The app utilizes ARKit technology to enable augmented reality (AR) experiences. The captured 3D models can be edited using the Fields Editor iOS app. For advanced users, Luma API offers the ability to generate high-quality photorealistic 3D assets and environments at scale, allowing game artists and CGI professionals to save time in asset creation.

The core features of Stability AI include open source models, such as Stable Diffusion, which puts control in the hands of developers. They also have a high-performance compute power for research and development in various fields such as Image, Language, Audio, Video, 3D, Biology, and more.

To use Stability AI, you can dive into ClipDrop or try DreamStudio. You can also explore their open-source models like Stable Diffusion and join other developers in creating applications using these models as a foundation. Additionally, you can follow their journey by signing up with your email address to receive news and updates.

AI-powered chat interface
PDF document uploading
Intelligent extraction of insights
Instant responses
Informed decision-making

1. Sign up for an account on the AskYourPDF website. 2. Upload your PDF files to the platform. 3. Start a chat with the AI by selecting the desired PDF. 4. Ask questions or provide queries related to the PDF content. 5. Get instant responses and valuable insights from the AI.

Visual composition of AI-native applications
Fast deployment of applications in just a few minutes
Support for GPT-4 and other models
Easy integration of plugins and long context using APIs
Continuous improvement and operation of AI applications
Sound application types and templates

To use Dify, sign up for a free account and log in. You can then start by creating your AI-native application using the visual composition tools. Choose from various application types like chat bot, code converter, SQL generator, news content writing, creative script, summary abstract, personalized dialogue, and Quora question answer. Customize the application based on your requirements and deploy it within minutes. You can also use Dify's API for more advanced integration and plugin options.

Voice Cloning
Localization in 60+ languages
Neural Audio Editing
Mobile Android & iOS support
API for programmatically building content

To use Resemble AI Voice Generator, you can either record or upload your voice data to create your AI Voice. You can then build synthetic voices in over 60 languages and customize them with emotions to add more depth and variation. The tool also offers neural audio editing for easy audio manipulation and the ability to create mobile custom voices running natively on Android and iOS platforms. Resemble AI Voice Generator also provides an API to programmatically build content with synthetic voices.

Free AI art generator
Create images, game assets, anime materials, art styles, character designs, product prototypes, photographic works, and AI videos
Gallery for inspiration
Community feeds
AI Editor for further customization
AI Talking Avatar
Personal space and API access
Web and mobile app accessibility

To use Aitubo, simply visit the website and start creating your desired image. You can explore various categories such as game assets, anime materials, art styles, and more. Once you have selected a category, you can customize the parameters and options to generate the image. You can also browse the gallery for inspiration and view community feeds for more creations. Additionally, Aitubo offers an AI Editor, AI Talking Avatar, and other tools to enhance your AI creations.

Transcribe audio files, video files, and live speech into text
Interpret audio for business and personal workflows
Build LLM (Large Language Model) apps on voice data using LeMUR
Unlock rich and accurate data from call recordings
Caption, categorize, and moderate video content
Easily transcribe and analyze insights from virtual meetings
Target and analyze media content from TV, podcasts, and radio

To use AssemblyAI, developers can integrate the API into their applications or services. They can convert audio files, video files, and live speech into text by making API requests. The API provides features like speaker labels, word-level timestamps, profanity filtering, custom vocabulary, and more. Developers can also leverage the Audio Intelligence models and the LeMUR framework to build AI-powered applications with voice data.

Blazingly fast launcher
Keystroke-based control of tools
Task completion
Calculations
Sharing common links
Script commands
File search
Window management
Clipboard history
Snippets
Quicklinks
Floating notes
Custom themes
AI-powered chat
Cloud sync
API for extension development

pro $ 49 / year

To use Raycast, simply download the app for Mac and install it. You can then access the launcher by pressing a hotkey. From there, you can use keystrokes to perform various actions, such as opening apps, searching files, running scripts, and more.

High-performance AI applications
Fully-managed and easily scalable
Efficient index creation and data upsertion
Fast and accurate search results in milliseconds
Metadata filtering and namespace partitioning
Configurable replicas and pod sizes for scalability

To use Pinecone, you can create an account and index your data with a few clicks or API calls. After creating an index, you can upsert vector embeddings into the index. Then, you can query your data by providing a vector and retrieve the most similar matches. Pinecone also allows for metadata filtering and namespace partitioning to enhance search capabilities.