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.

555Total AI API Tools69Most Relevant AI API Tools132Free AI API ToolsAI API Tools updated Aug 3, 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.
PriceFree to useTraffic947M/mo
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.
PriceFree web access, API starts from $0.035/1M tokensTraffic373M/mo
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.
PriceFree, Plus from $20/mo, Pro from $200/mo, Team from $25/user/moTraffic190M/mo
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.
PriceFree, Pay-as-you-go from $0.0375/1M tokensTraffic117M/mo
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.

ToolPlan statusPricingTrafficFeature previewWebsite
DeepseekFree optionFree web access, API starts from $0.035/1M tokens373M/moFlagship large language models (DeepSeek-V3 and reasoning-focused R1), Free AI assistant features for search, writing, reading, and translationVisit
OpenAIFree optionFree, Plus from $20/mo, Pro from $200/mo, Team from $25/user/mo190M/moAccess to diverse reasoning models including GPT-4o, OpenAI o3, and OpenAI o4-mini, Advanced voice mode with support for video and screensharingVisit
DeepLFree optionFree, Starter from $8.74/mo109M/moInstant text translation for 33 languages, Whole-file document translation (.pdf, .docx, .pptx) preserving original formattingVisit
Claude 3Free optionFree, Pro from $17/mo40M/moAdvanced reasoning for complex cognitive tasks, Vision analysis for transcribing and analyzing static images, graphs, and notesVisit
PhotoroomFree optionFree, Pro from SGD 89.98/year19M/moPrecise automatic background removal, Magic Retouch to erase unwanted objects with a swipeVisit
OpenRouterFree optionFree models available, paid models billed pay-as-you-go17M/moUnified API endpoint compatible with OpenAI SDKs out of the box, Access to over 300+ models from 50+ diverse providersVisit
Semantic ScholarFree optionFree6.6M/moAI-driven semantic search across 226+ million scientific papers, Semantic Reader (Beta) for augmented, highly accessible, and contextual scientific readingVisit
GroqFree optionFree, on-demand from $0.05/M tokens3.4M/moLPU™ (Language Processing Unit) engine designed for fast text and language token generation, OpenAI API specification compatibility requiring only minor code adjustmentsVisit
RodinFree optionFree, Creator from $24/mo3M/moHigh-speed text-to-3D and image-to-3D generation, Multi-view image fusion to construct detailed 3D modelsVisit
Luma AIFree optionFree, Lite from $9.99/mo, Plus from $29.99/mo2.8M/moPhotorealistic 3D capture using Neural Radiance Fields (NeRFs) and volumetric photogrammetry, Luma Dream Machine for high-quality text-to-video and image-to-video generationVisit
Traffic

Most visited AI API Tools

Use traffic, free-plan status, and starting price to compare the most visited tools in this category.

ToolTrafficFree planStarting priceWebsite
Claude947M/moNoFree to useVisit
Deepseek373M/moYesFree web access, API starts from $0.035/1M tokensVisit
OpenAI190M/moYesFree, Plus from $20/mo, Pro from $200/mo, Team from $25/user/moVisit
Google AI Studio117M/moNoFree, Pay-as-you-go from $0.0375/1M tokensVisit
DeepL109M/moYesFree, Starter from $8.74/moVisit
Magnific (formerly Freepik)97M/moNoContact for PricingVisit
Claude 340M/moYesFree, Pro from $17/moVisit
ElevenLabs34M/moNoFree, Starter from $5/moVisit
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.

ToolFreePricingTrafficFeaturesWebsite
Seedance 2.0 Video AI APINoFree tools available, API credits start at $1073K/moMultimodal AI Generation: Programmatic access to top-tier AI image, video, and LLM APIs., Seedance 2.0 Integration: High-quality text-to-video synthesis featuring a Dual-Branch Diffusion Transformer architecture, built-in sound generation, and 6 supported aspect ratios.Visit
affinda.comNoFree trial, Business from $0.20/page41K/moDocument-agnostic extraction supporting resumes, invoices, contracts, and bank statements, Deep learning and natural language processing models for high-accuracy parsingVisit
CerebriumNoHobby is $0/mo + compute, Standard from $100/mo + compute39K/moServerless GPU and CPU hosting with scale-to-zero capabilities, Support for over 12 varieties of GPUs including T4, L4, L40s, A100, and H100Visit
Extruct AINoFree, Basic from $39/mo60K/moSmart Search combining semantic search with live web crawling, Deep research capabilities to build custom, structured company profilesVisit
DevzeryYesFree, Pro from $25/mo47K/moAI-driven targeted API regression testing, Middleware SDK supporting Node, Java, Python, and GolangVisit
formx aiNoFree Trial, Starter from $299/mo40K/moIntelligent Document Processing (IDP) to automate data extraction from any document, Pre-trained AI models specialized for invoices, receipts, bank statements, and ID cardsVisit
博查AI搜索NoContact for Pricing39K/moMultimodal AI search capability with diverse and rich answer formats, High-performance Search API built specifically for AI agents and applicationsVisit
Logic — Effortless Operational MagicNoFree, Plus from $20/mo28K/moNatural language to functional API conversion, Automated test case generation and preview capabilitiesVisit
AI Engineer PackNoFree, Starter from $5/mo25K/moRealistic Text to Speech (TTS) generation in 32 languages, Speech to Text transcription with diarization supportVisit
MixPeekYesFree, Usage-Based from $49/mo24K/moUnified API for extracting insights across text, image, video, and audio content, Direct AWS S3 bucket integration for automated data ingestionVisit
deAPINoFree Trial available, Pay-as-you-go from $0.00136/image23K/moOne unified REST API key for text-to-image, text-to-speech, video-to-text, and image-to-video capabilities, Decentralized GPU infrastructure delivering up to 20x lower inference costs compared to traditional cloud providersVisit
NotamifyNoFree, Pro from $19/mo42K/moAI-Powered Summaries: Translates highly abbreviated raw NOTAM text into straightforward sentences., Airport & Airspace Dashboards: Allows real-time monitoring of multiple airfields and flight information regions simultaneously.Visit
APIPodNoPay-as-you-go rates from $0.002/request or $0.02/1M tokens26K/moUnified multi-modal API covering 100+ top global AI models, 99.99% uptime guarantee with 50ms global latency and automated circuit breaker protectionVisit
trestleiq.comNoQueries start from $0.015/query on pay-as-you-go, with custom enterprise plans available.26K/moPhone Validation API to identify disconnected lines and determine carrier metadata, Reverse Phone and Reverse Address APIs to enrich contacts with demographics, names, and emailsVisit
Ready Player MeYesFree, revenue-sharing model for live games22K/moCross-game avatar creator and customization system, Multi-platform support including Unity, Unreal, Web, and Mobile SDKsVisit
imagga.comNoFree, Indie from $79/mo21K/moAutomated Image Tagging and Categorization, Content Moderation and Adult Content DetectionVisit
ModelHunter.AINoStarts at $0.01/second14K/moUnified REST API and single interface for 50+ AI model providers, Pay-as-you-go pricing model with zero subscription commitmentsVisit
RealEstateAPI.comNoContact for Pricing25K/moProperty Search & Comps APIs to filter properties with strict criteria, Parcel Boundary API delivering detailed property clusters in GeoJSON formatVisit
webscraping.aiNoFree, Personal from $29/mo13K/moJavaScript rendering using real browser execution, Automatically rotated residential and datacenter proxies with geotargeting optionsVisit
SendBridgeYesFree, Credits from $9 one-time31K/moAI-powered real-time single email verification, Bulk email list verification and automated cleaningVisit
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