Api Development
The best 50 Api Development AI tools - Free & Paid
Explore 50 AI for Api Development
aiOS is an AI marketing automation platform that orchestrates GPT, Claude, and Gemini models with 1,200+ agentic skills to automate content creation, ad optimization, lead generation, and multi-channel publishing. It unifies sales, marketing, and operations workflows through a central dashboard wit
Free trial
you.bot is a multi-model API platform offering unified access to image, video, audio, music, and text generation via a single REST endpoint. It enables developers to switch models seamlessly, manage asynchronous tasks, and integrate with webhooks and polling, all with a consistent schema.
Freemium
APIPASS API Marketplace is a unified platform for discovering, testing, and integrating APIs across REST, GraphQL, and SOAP. It provides a searchable catalog with built-in testing tools, comprehensive documentation, and management workflows for streamlined deployment.
Freemium
APIPark is an open-source AI gateway and API portal that simplifies AI model management, integration, and deployment, offering unified API formatting, lifecycle management, and secure multi-tenant support for efficient AI usage.
Free
AIMLAPI.com offers a unified API endpoint for over 400 AI models spanning chat, image, video, audio, voice, text, 3D, and OCR. It supports sandbox testing, granular access control, batch requests, and an OpenClaw runtime for secure, humanโinโtheโloop workflows.
Freemium
AI API is a unified interface that connects to 100+ AI models for text, code, image, video, and speech tasks via a single OpenAI-compatible endpoint. It simplifies switching between models without code changes, with built-in routing, failover, and monitoring for production-ready development.
Freemium
Pi.dev is a terminal-based coding agent for developers and teams, offering TUI, RPC/SDK modes, extensible TypeScript modules and packages, multi-provider model authentication, session/context management, RAG/memory primitives, and CLI tooling for automation and integration.
Free
APIPod is a unified API gateway providing access to 100+ AI models for text, image, video, and audio generation. It simplifies production deployment with developer tools, agent orchestration, observability, and enterprise-grade reliability.
Freemium
AskCodi accelerates backend and frontend development by generating REST/GraphQL APIs, UI components, and productionโready agents. It offers an AI gateway, IDE/CLI integration, and a marketplace for readyโtoโrun templates, cutting boilerplate and speeding prototyping.
Freemium
- $20/mo
Vapi is an AI tool that facilitates rapid voicebot development for various applications like customer support, sales, telehealth, etc. It provides features such as low-latency streaming, multilingual support, and customizable models to efficiently create sophisticated voice solutions.
Free trial
- $36
ReAPIs accelerates API development using AI-driven tools. Simplifies YAML tasks via visual editor, automates documentation, ensures precision, boosts reusability, and facilitates collaboration for streamlined and precise API creation.
Free
OpenRouter gives one API key to access 300+ models from 60+ providers, SDKโcompatible, with visual routing, automated fallโback, edge hosting, dataโpolicy controls, and agentic tools for building efficient autonomous workflows.
Freemium
toapis.com is a centralized model marketplace and API dashboard for comparing and routing across text, image, video, and audio models. It clarifies cost structures with token-, request-, and duration-based billing, and enables teams to set default routes with performance-informed fallback models for
Freemium
KeyAPI is a comprehensive REST API for TikTok data, offering over 70 endpoints across five categories that return clean, structured JSON. It enables access to influencer profiles, video analytics, follower graphs, TikTok Shop data, and product-level analytics for marketing, e-commerce, and data anal
Free trial
- $59/mo
newapi is an open-source AI API gateway that unifies 30+ upstream providers under a single OpenAI-compatible endpoint, featuring centralized key management and model routing. It enables self-hosted control over load-balancing, failover, and per-user quotas without application changes.
Freemium
Qodex is an automated API testing platform that streamlines test creation and execution, offering features like automated test generation, uptime monitoring, and real-time failure alerts, facilitating efficient testing in CI/CD workflows for developers and QA teams.
Free trial
SharpAPI is a multifaceted AI tool for app development, encompassing e-commerce, sentiment analysis, content automation, and HR tech support. It provides features such as product intros, summarization, and job description generation across multiple industries.
Freemium
Apiframe is a unified REST API for AI media generation that standardizes access to image, video, music and headshot models (Midjourney, Luma, DALLยทE, Runway), offering async jobs, webhooks, batching, CDN hosting, workflow chaining and integrations for scalable pipelines.
Freemium
- $19/mo
SampleApp.ai enables rapid application prototyping and API integration within 60 seconds. It uses AI to generate customized sample applications, offers OAuth security, versioning, analytics, and forking capabilities, streamlining developer onboarding and enhancing engagement.
Free trial
Webapi.ai delivers AIโpowered virtual agents that handle multiโstep conversations, API calls, and notifications. It integrates with SaaS, websites, PDFs and supports channels like website widgets, WhatsApp, Facebook, SMS, providing analytics and human handoff.
Freemium
- $1200/mo
SingleAPI transforms any website into a readyโtoโuse API in seconds, automatically extracting structured data (JSON, CSV, XML, Excel). It offers realโtime webhooks, builtโin enrichment, proxy rotation, monitoring, and searchโengine scraping for developers, marketers, and analysts.
Freemium
- $75/mo
Alfred automatically generates integration code and data models from an OpenAPI spec, answers naturalโlanguage API queries, and delivers languageโspecific snippets for rapid implementation across platforms, reducing support tickets and speeding API onboarding.
Subscription
- $233/mo
8080.ai is an AI development platform for building, orchestrating, and scaling multi-agent workflows that automate project planning, task decomposition, and sprint tracking. It provides a production-ready microservices architecture with Kubernetes deployment, a browser-based VS Code editor, and fron
Freemium
- $1/mo
CometAPI is a unified AI platform offering single-API access to 500+ models like GPT and Claude, streamlining integration across providers. It ensures high-speed concurrency, real-time analytics, and vendor flexibility for industries like e-commerce and finance.
Usage Based
Apify is a web scraping and data extraction platform with over 3,000 pre-built scrapers. It supports integrations with various apps, offers anti-blocking features, and enables custom scraper development using its open-source library, Crawlee.
Freemium
WebCrawlerAPI simplifies web crawling and data extraction with a developer-friendly API that retrieves website content in text, HTML, or Markdown, automates data cleaning, and handles complex challenges like JS rendering and anti-bot mechanisms.
Freemium
ApexAPI is a unified AI gateway that provides a single OpenAI-compatible endpoint for accessing 14+ major AI providers. Developers can switch between models from OpenAI, Anthropic, Google, and others by simply changing the model name, requiring only one API key for all integrations.
Paid
claudeapi.com is a Claude-compatible API gateway offering direct access to Anthropic models with full SDK support and OpenAI-format compatibility. It enables seamless migration by simply swapping the base_url, while providing streaming, multi-region routing, and dedicated developer support.
Freemium
CodingPlanX AI is a development planning tool that converts project requirements into structured plans with code scaffolding and task breakdowns. It integrates with Git and issue trackers to automate workflows and provides collaboration features with reporting for risk and resource management.
Freemium
APIMaster.AI is a unified API gateway and marketplace providing OpenAI-compatible, fingerprint-verified access to premium AI models like GPT-5.4 and Claude Sonnet, with smart routing, auto-failover, and a shared balance system for seamless integration into existing workflows.
Paid
DeepSeek API, available via Kie.ai, provides access to DeepSeek models R1 and V3 for complex reasoning and natural language processing.
Freemium
apex.ai is a comprehensive platform providing safety-certified software tools and services for autonomous systems. Its modular products enable deterministic execution, high-speed data routing, repeatable testing, and automated deployment for robotics and embedded applications.
Freemium
GenAPI is an API production tool that rapidly generates production-ready APIs, reducing backend development time from months to minutes. It enhances collaboration, supports integration with existing workflows, and optimizes resources for tech teams and enterprises.
Freemium
Bolt.new is an AI-powered development agent that allows users to build, edit, run, and deploy full-stack applications directly from their browser without local setup. It provides complete control over the development environment, making web development seamless and AI-driven.
Freemium
AIPex is an open-source, lightweight browser extension that embeds an AI assistant into existing browsers for inline search, content drafting, code help and workflow automation, offering toggle modes, language switching, tab/session integration and developer-friendly setup.
- $20/mo
QA.tech automates endโtoโend tests across web, mobile, and APIs with AI agents that simulate real users, reducing flakiness, delivering instant CI/CD feedback, logging detailed failures, and automatically updating test cases without infrastructure setup.
Freemium
- $499/mo
Replit is a collaborative browser-based IDE with AI-powered tools for software development, real-time multiplayer editing and deployment, templates and tutorials, and hosting and monetization options.
Subscription
TheNeo is an AI-powered tool that generates high-quality API documentation with descriptive summaries and collaborative editing features.
Subscription
Lexica Aperture is a V5 textโtoโimage AI that generates up to 960ร1440โpixel images from naturalโlanguage prompts. Its realโtime preview, prompt tweaking, and history features support rapid prototyping for designers, illustrators, and marketers.
Freemium
Line0 automates backend development by generating production-ready services from natural-language descriptions, offering an in-browser editor with feature-specific chats, two-way GitHub sync, live API client with hot-reload and database preview, and built-in testing workflows.
Freemium
WebScraping.AI offers a single API that retrieves clean HTML, plain text, or JSON from any URL, handling JavaScript-heavy pages, proxies, CAPTCHAs, and retries. Users can query, extract fields, generate summaries via prompts, and integrate with SDKs or workflow tools.
Subscription
- $29/mo
LinkedIn API is a secure interface for managing LinkedIn accounts and automating outreach, messaging, and engagement. It enables real-time data retrieval and workflow automation for sales, marketing, and recruitment.
Usage Based
OpenAI Codex CLI is a terminal-based, open-source coding agent that uses natural language to automate development tasks like code generation, testing, refactoring, and codebase understanding, with secure sandboxed execution and Git integration.
Free
Evolink is a unified API gateway providing single-key access to multimodal text, image and video models, with smart routing, automatic failover, low-latency provider switching, OpenAI/Anthropic/Google-compatible integration, SDKs, and real-time monitoring for scalable model orchestration.
Freemium