Coding & Development
Best AI API Tools in 2026: Free & Paid Picks
AI API helps developers connect models, generation, analysis, and automation into real products. Use AI API to compare tools for pricing, endpoints, latency, model coverage, documentation, and integration experience.
556Total AI API Tools70Most Relevant AI API Tools132Free AI API ToolsAI API Tools updated Sep 21, 2026
Top tools
Top 10 AI API Tools
Explore top AI API Tools ranked by category fit, free access, AI-powered features, traffic, and pricing context.
Paid
Cl
Claude
An AI assistant for natural language tasks, coding, and workflow automation.
Improved performance and longer response generation with Claude 2Natural language processing for versatile personal and professional tasksMulti-platform accessibility via web browser, API, and desktop application
Free plan
De
Deepseek
Advanced open-source AI models and developer API platform.
Flagship large language models (DeepSeek-V3 and reasoning-focused R1)Free AI assistant features for search, writing, reading, and translationOpen-source coding and mathematical reasoning capabilitiesRobust DeepSeek API platform with context caching and off-peak discount pricing
Free plan
Op
OpenAI
Official subscription and pricing guide for ChatGPT plans and features.
Access to diverse reasoning models including GPT-4o, OpenAI o3, and OpenAI o4-miniAdvanced voice mode with support for video and screensharingInteractive tables, charts, and file upload capabilities for data analysisWorkspace customization with custom GPTs, projects, and collaborative tasks+1
Paid
Go
Google AI Studio
A fast prototyping environment to build applications with Gemini AI models.
Access to the latest Gemini multimodal generative AI models from Google DeepMindSupport for processing text, code, images, audio, and video inputsBreakthrough 2M token context window, context caching, and search grounding featuresGoogle AI Studio quickstart with prompt ideas and structured outputs
Free plans
Best Free AI API Tools
Start with free AI api tools that cover practical website workflows, core features, and AI-powered output quality.
| Tool | Plan status | Pricing | Traffic | Feature preview | Website |
|---|---|---|---|---|---|
| Deepseek | Free option | Free web access, API starts from $0.035/1M tokens | 354M/mo | Flagship large language models (DeepSeek-V3 and reasoning-focused R1), Free AI assistant features for search, writing, reading, and translation | Visit |
| OpenAI | Free option | Free, Plus from $20/mo, Pro from $200/mo, Team from $25/user/mo | 204M/mo | Access to diverse reasoning models including GPT-4o, OpenAI o3, and OpenAI o4-mini, Advanced voice mode with support for video and screensharing | Visit |
| DeepL | Free option | Free, Starter from $8.74/mo | 99M/mo | Instant text translation for 33 languages, Whole-file document translation (.pdf, .docx, .pptx) preserving original formatting | Visit |
| OpenRouter | Free option | Free models available, paid models billed pay-as-you-go | 22M/mo | Unified API endpoint compatible with OpenAI SDKs out of the box, Access to over 300+ models from 50+ diverse providers | Visit |
| Photoroom | Free option | Free, Pro from SGD 89.98/year | 20M/mo | Precise automatic background removal, Magic Retouch to erase unwanted objects with a swipe | Visit |
| Claude 3 | Free option | Free, Pro from $17/mo | 14M/mo | Advanced reasoning for complex cognitive tasks, Vision analysis for transcribing and analyzing static images, graphs, and notes | Visit |
| Rodin | Free option | Free, Creator from $24/mo | 9.3M/mo | High-speed text-to-3D and image-to-3D generation, Multi-view image fusion to construct detailed 3D models | Visit |
| Semantic Scholar | Free option | Free | 6.6M/mo | AI-driven semantic search across 226+ million scientific papers, Semantic Reader (Beta) for augmented, highly accessible, and contextual scientific reading | Visit |
| Groq | Free option | Free, on-demand from $0.05/M tokens | 4.2M/mo | LPU™ (Language Processing Unit) engine designed for fast text and language token generation, OpenAI API specification compatibility requiring only minor code adjustments | Visit |
| ModelScope | Free option | Free | 3.6M/mo | Model discovery and search across vision, NLP, speech, multimodal, and scientific computing tasks, Dataset browsing and access | Visit |
Traffic
Most visited AI API Tools
Use traffic, free-plan status, and starting price to compare the most visited tools in this category.
| Tool | Traffic | Free plan | Starting price | Website |
|---|---|---|---|---|
| Claude | 950M/mo | No | Free to use | Visit |
| Deepseek | 354M/mo | Yes | Free web access, API starts from $0.035/1M tokens | Visit |
| OpenAI | 204M/mo | Yes | Free, Plus from $20/mo, Pro from $200/mo, Team from $25/user/mo | Visit |
| Google AI Studio | 113M/mo | No | Free, Pay-as-you-go from $0.0375/1M tokens | Visit |
| DeepL | 99M/mo | Yes | Free, Starter from $8.74/mo | Visit |
| Magnific (formerly Freepik) | 83M/mo | No | Contact for Pricing | Visit |
| ElevenLabs | 36M/mo | No | Free, Starter from $5/mo | Visit |
| OpenRouter | 22M/mo | Yes | Free models available, paid models billed pay-as-you-go | Visit |
Browse all tools
Top AI API Tools Comparison
Browse all AI API Tools in this category with search, free-plan filtering, sorting, website signals, pricing, and AI-powered feature context.
| Tool | Free | Pricing | Traffic | Features | Website |
|---|---|---|---|---|---|
| Chatfiliate | No | Free, Personal from $20/mo | 94K/mo | Intuitive visual drag-and-drop workflow builder to design and configure automation logic., 1-click deployment for popular AI agents like Customer Support, Personalized Outreach, and Meme Marketing. | Visit |
| UChat | Yes | Free, Business Plan from $15/mo | 49K/mo | Drag-and-drop visual flow builder to create conversation steps without coding, Omni-channel support across Web Chat, WhatsApp, Instagram, Google Business Messenger, Telegram, SMS, and Voice | Visit |
| BedtimeStory AI | No | Free, Alpha PRO from $8.25/mo | 28K/mo | Hyper-personalized story generation with custom child and family characters, Instant narrative creation from simple words, phrases, or complex themes | Visit |
| Dappier | Yes | Free to get started, contact for custom solutions | 19K/mo | Dappier Data Marketplace for content and data syndication, AskAI for AI-powered search, answers, and custom on-site chatbots | Visit |
| AI Power | No | Free, Pro from $9.99/mo | 17K/mo | AI content generation and post scheduling automation, Smart chatbots supporting voice input, PDF chat, and web search | Visit |
| Airscale | No | Starts at $49/mo | 16K/mo | Multi-provider waterfall enrichment for finding verified business emails and mobile numbers, Built-in list builders and scrapers for Apollo, LinkedIn Sales Navigator, and Google Maps | Visit |
| One AI | No | Contact for Pricing | 16K/mo | Human-level outbound AI calling with goal-driven conversation steering and interruption recovery, Automated appointment scheduling AI that connects to calendars and backfills last-minute cancellations | Visit |
| Masterpiece X - Generate | No | Free, Credits from $10.99/mo | 11K/mo | Text-to-3D and Image-to-3D generation capability, Fully-textured, export-ready 3D asset generation for concepts and props | Visit |
| CoreViz | No | Free, Teams from $15/user/month | 14K/mo | Natural Language Search with Vision RAG, AI-powered image & video tagging and bulk image tagging | Visit |
| Spine | No | Free, Pro from $25/mo | 4.4K/mo | Conversational interface built over existing REST or GraphQL APIs, Multi-step complex workflow execution and bulk actions via single prompts | Visit |
| AProxy | No | Starts at $0.27/GB for Long Acting ISP Proxies, Regular Residential Proxies from $0.80/GB | 77K/mo | 70M+ Compliant Residential IP Pool across 195 countries and 1000+ cities, Dual Extraction Methods: Account password extraction and API whitelist extraction | Visit |
| Expense Sorted | No | Free Trial Available | 19K/mo | Automatic AI-driven expense categorization without complex manual rules, Seamless integration with Google Sheets, Lunch Money, Tiller, and PocketSmith | Visit |
| MIDI Agent | No | Starts at $49 lifetime license, Pro subscription at $20/mo | 43K/mo | AI-powered MIDI generation using ChatGPT, Claude, Gemini, Grok, and DeepSeek, Ability to expand, continue, and create variations on existing MIDI files | Visit |
| LightOn | No | Contact for Pricing | 30K/mo | Private Chat with agentic behavior and advanced tools, Enhanced Knowledge (RAG) supporting text, images, tables, and graphs | Visit |
| verbalate | No | Starts at $9/mo | 28K/mo | AI Voice Cloning supporting 29 languages and over 50 accents, Lip Sync options to align spoken words with on-screen performance | Visit |
| kwrds.ai | No | Free, UI Full Access from $39/mo | 25K/mo | AI-assisted keyword generator utilizing Google autosuggest data, Real-time 'People Also Ask' question finder directly from search results | Visit |
| Documind | No | Free, Premium from $9.93/mo | 23K/mo | Bulk upload hundreds of PDF documents simultaneously, Interactive Q&A with PDFs providing natural language answers and citations | Visit |
| powered by ChatGPT | No | Free, Premium from $39.99/mo | 15K/mo | AI Chatbots for 24/7 customer engagement and automated answers, No-code visual Workflow builder with drag-and-drop conversation design | Visit |
| LM-Kit.NET | No | Free, Professional plans from $1,000/yr | 15K/mo | On-device local inference designed to reduce latency, minimize resource usage, and keep data secure, Comprehensive toolkit for building, customizing, and orchestrating .NET AI agents | Visit |
| Image Upscaler AI | No | Free, PRO from US$4.32/mo | 5.8K/mo | AI-driven image upscaling up to 400%, Face restoration toggle ('Fix faces') for realistic portrait enhancements | Visit |
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