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.
546Total AI API Tools67Most Relevant AI API Tools130Free AI API ToolsAI API Tools updated Jun 18, 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 | 430M/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 | 203M/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 | 116M/mo | Instant text translation for 33 languages, Whole-file document translation (.pdf, .docx, .pptx) preserving original formatting | Visit |
| Claude 3 | Free option | Free, Pro from $17/mo | 22M/mo | Advanced reasoning for complex cognitive tasks, Vision analysis for transcribing and analyzing static images, graphs, and notes | Visit |
| Photoroom | Free option | Free, Pro from SGD 89.98/year | 19M/mo | Precise automatic background removal, Magic Retouch to erase unwanted objects with a swipe | Visit |
| OpenRouter | Free option | Free models available, paid models billed pay-as-you-go | 17M/mo | Unified API endpoint compatible with OpenAI SDKs out of the box, Access to over 300+ models from 50+ diverse providers | Visit |
| Semantic Scholar | Free option | Free | 7.9M/mo | AI-driven semantic search across 226+ million scientific papers, Semantic Reader (Beta) for augmented, highly accessible, and contextual scientific reading | Visit |
| Luma AI | Free option | Free, Lite from $9.99/mo, Plus from $29.99/mo | 4.9M/mo | Photorealistic 3D capture using Neural Radiance Fields (NeRFs) and volumetric photogrammetry, Luma Dream Machine for high-quality text-to-video and image-to-video generation | Visit |
| Groq | Free option | Free, on-demand from $0.05/M tokens | 3.6M/mo | LPU™ (Language Processing Unit) engine designed for fast text and language token generation, OpenAI API specification compatibility requiring only minor code adjustments | Visit |
| Removal.AI | Free option | Free, Monthly Subscription from $5.99/mo | 1.8M/mo | Fully automated background removal in 3 seconds or less, Neat, clear, and smooth cutout edges capable of handling hair and furry textures | 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 | 953M/mo | No | Free to use | Visit |
| Deepseek | 430M/mo | Yes | Free web access, API starts from $0.035/1M tokens | Visit |
| OpenAI | 203M/mo | Yes | Free, Plus from $20/mo, Pro from $200/mo, Team from $25/user/mo | Visit |
| Google AI Studio | 123M/mo | No | Free, Pay-as-you-go from $0.0375/1M tokens | Visit |
| DeepL | 116M/mo | Yes | Free, Starter from $8.74/mo | Visit |
| Magnific (formerly Freepik) | 105M/mo | No | Contact for Pricing | Visit |
| ElevenLabs | 35M/mo | No | Free, Starter from $5/mo | Visit |
| Tripo AI | 28M/mo | No | Free, Professional from $15.90/mo | 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 |
|---|---|---|---|---|---|
| Scade.pro | No | Free, Starter from $9.90/mo | 15K/mo | No-code pipeline builder featuring visual logic programming, Unified API/SDK for integrating workflows into external applications, CRMs, and ERPs | Visit |
| ChatTTS | Yes | Free | 15K/mo | Optimized for dialogue and conversational scenarios, Multi-language support for Chinese and English speech synthesis | Visit |
| OneSky Localization Agent | No | Starts with a 14-day Free Trial, paid plans from $29/mo | 29K/mo | Multi-Agent AI Translation utilizing a collaborative network of specialized AI roles, Multi-LLM integration supporting engines like GPT-4o-mini, Claude 3.5 Sonnet, Gemini, and Grok 3-mini | Visit |
| SimFin | No | Free, Start from $15/mo | 28K/mo | Over 20 years of historical financial stock data, Comprehensive stock screener with 80+ metrics and indicators | Visit |
| Solidus Ai Tech | No | Flexible pay-per-use, with $1M Compute Grant program available | 28K/mo | Eco-Friendly Tier 3 HPC Data Center in Europe, Decentralized GPU Marketplace with Pay-Per-Use Billing | Visit |
| Keyword Insights | No | Starts at $46/mo (billed annually), with a $1 7-day trial option | 27K/mo | SERP-based Keyword Clustering, Real-time Keyword Discovery | Visit |
| Dubformer | No | Contact for Pricing | 14K/mo | Best-in-Class AI Translation & Dubbing ranked #1 at WMT24, Patented Emotion Transfer Technology for precise control over emotions, intonation, and expression | Visit |
| InOtherWord - Translate Complex Docs | Yes | Free | 13K/mo | Supports large file translation up to 500+ pages and 100+MB (up to 500 MB total), Advanced processing for scanned documents and PDFs | Visit |
| ImaginePro | No | Free, Standard from $8/mo | 13K/mo | AI Image Generator (Text-to-Image & Image-to-Image capabilities), Background Removal for e-commerce, portraits, and graphic design | Visit |
| RBLX/ai | No | Free, Pro Plan from $19.99/mo | 27K/mo | AI Image Generation trained and prompt-engineered specifically for Roblox graphics, High % CTR guaranteed icons and thumbnails designed to optimize game discovery | Visit |
| clearstep.health | No | Contact for Pricing | 24K/mo | Smart Access Suite: Virtual Triage and automated symptom checker software, Smart Access Suite: Care Navigation patient engagement chatbot | Visit |
| Play AI | Yes | Free, Starter from $9.00/mo | 23K/mo | Real-time conversational intelligence with turn-taking and interruption handling, Advanced text-to-speech (TTS) voice modulation for realistic emotion and energy | Visit |
| chaterimo.com | No | Free Trial available, paid plans require separate platform fee + personal API keys | 21K/mo | Multi-LLM Integration (supports gpt o3-mini, gpt 4.1, Claude Opus/Sonnet/Haiku, and Gemini Pro/Flash), Flexible Knowledge Base Creation (Copy/Paste, Web Scraping, File Uploads up to 10MB) | Visit |
| proto.cx | Yes | Free, Paid plans from $225/mo | 22K/mo | Customizable AI assistants trainable on multiple data sources (URLs, PDFs, CSV, JSON), Support for generative LLMs including OpenAI ChatGPT, Anthropic Claude, DeepSeek, and Perplexity | Visit |
| syncwords.com | No | Starts at $0.50/min | 19K/mo | Automated and human-powered captioning and transcription, Real-time machine-translated subtitles in over 100 languages | Visit |
| Audioshake | No | Free Trial, Starter from $20/mo | 18K/mo | AI-powered fast and easy stem & instrumental creation, Separation of audio tracks into Vocals, Bass, Drums, and Other components | Visit |
| CompliantChatGPT | Yes | Free, Starter from $19.99/mo | 17K/mo | PHI Anonymizer tokenization system, Tailored healthcare modes (Bloodwork Analysis, Differential Diagnosis, Treatment Planner) | Visit |
| AI Chief Strategy Officer | Yes | Free, Basic from $11.67/mo | 17K/mo | Train AI on multiple data sources (Notion, Websites, YouTube, Files, RSS feeds), Multi-channel deployment (Website widget, Slack, Discord, WhatsApp, Telegram, Email) | Visit |
| keybe.ai | No | Starts at $89/mo | 17K/mo | Smart Chat with AI-driven response and action recommendations, Customer Data Platform (CDP) with automatic contact creation and profiling | Visit |
| AI-assisted Bravorizer | No | Free, Solo from $21/mo | 30K/mo | Figma design-to-app conversion using structural Bravo tags, REST API data integration to connect any backend or database | Visit |
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