Api Builder
The best 50 Api Builder AI tools - Free & Paid
Explore 50 AI for Api Builder
Pillar merges link‑in‑bio and storefront, letting creators sell digital products, courses, memberships, and booking services via a drag‑and‑drop builder. It connects Stripe, PayPal, Google Calendar, Zoom (Zapier), offers mobile checkout, AI email automation, lead‑magnet tools, embedded funnels, and
Subscription
- $29/mo
BuilderKit is a TypeScript Next.js SaaS boilerplate and AI starter kit that bundles modular code, prebuilt apps, AI modules (chat, text/image/speech), model integrations, Supabase/Postgres auth/storage, payments, SEO-ready UI, demos and deployment support.
Freemium
OpenRouter gives one API key to access 300+ models from 60+ providers, SDK‑compatible, with visual routing, automated fall‑back, edge hosting, data‑policy controls, and agentic tools for building efficient autonomous workflows.
Freemium
Pineapple Builder is a no‑code AI website builder that creates and optimizes websites in five minutes, generating copy, design, and SEO suggestions from a business brief. It offers drag‑and‑drop editing, responsive layouts, and easy integrations for booking, payments, and marketing.
Freemium
- $12/mo
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
AI App Builder turns plain‑language app ideas into functional web prototypes. Drop screenshots, iterate design and code in real time, then deploy instantly. Built‑in templates cover portfolios, e‑commerce, and events, with export, hosting, and version‑control integration.
Freemium
AI Agent is a web app that allows users to create customized AI agents to perform specific tasks and achieve goals.
Freemium
AskCodi accelerates backend and frontend development by generating REST/GraphQL APIs, UI components, and production‑ready agents. It offers an AI gateway, IDE/CLI integration, and a marketplace for ready‑to‑run templates, cutting boilerplate and speeding prototyping.
Freemium
- $20/mo
zoer is an AI-assisted app builder for prototypes and production web/mobile apps, with a template and public component library, built-in auth, file upload, Stripe payments, real-time messaging/voice, and AI-driven code, image and workflow generation.
Freemium
- $19/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
AI App Generator by UI Bakery is a low‑code platform that creates web apps from a single text prompt using drag‑and‑drop UI, workflow automations, and API/database integrations, enabling rapid deployment of dashboards, admin panels, and custom solutions.
Freemium
- $5/mo
Dyad is an open-source AI app builder that enables local development with popular AI models via API integration. It supports existing IDEs and includes Supabase for authentication and database management, enhancing privacy and real-time feedback.
Freemium
Autify is an AI testing platform that automates end‑to‑end tests for web, mobile, and desktop apps. Its Aximo, Nexus, and Genesis modules generate, execute, and maintain tests, reducing manual scripting and easing maintenance for QA and dev teams.
Freemium
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
Uplup is an AI form and quiz builder that creates forms, surveys, and assessments from natural-language prompts or a drag-and-drop editor, with conditional logic, payments, e-signatures, real-time previews, analytics, templates, and 60+ integrations.
Free
CodeConductor is a no‑code AI platform that turns plain‑English prompts into complete web and mobile apps, automatically generating front‑end, back‑end, APIs, databases, and authentication with built‑in security, CI/CD, and cloud deployment options.
Freemium
Zapier is a no‑code automation platform linking 8,000+ apps. It lets teams build AI‑enabled workflows—such as lead routing or support bots—using a visual canvas or code, with compliance, audit logs, and ready templates for rapid deployment.
Freemium
- $49/mo
Buildform is an AI-powered form builder that simplifies creating and managing various forms. It offers templates, conditional logic, and real-time analytics, integrating with tools like Slack and CRM systems for enhanced workflow and user engagement.
Freemium
Architecture Helper uses AI image analysis to identify styles, materials, and design elements in photos. It offers design suggestions, style mixing, custom city tours, comparative analysis, and a library of building studies for architects, designers, and real‑estate professionals.
Subscription
- $5/mo
OnSpace.AI is a no-code AI app builder for creating cross-platform mobile apps with photorealistic designs and real-time previews. It offers backend integration, GitHub exports, and monetization via Stripe, all through an intuitive interface.
Freemium
- $20/mo
vly.ai is a full‑stack web builder that embeds AI engines (Claude, Codex, Gemini) into its IDE, offering real‑time REST queries, one‑click publishing, custom domains, visual backend dashboards, and thousands of prebuilt integrations with CI/version control for rapid, production‑ready prototypes.
Subscription
- $3/mo
AI Builder Buddy offers technical guidance for SaaS product development, providing expert support in system architecture, tech stack selection, and infrastructure planning. Features include live pair programming, task delegation, bug fixing, and integration of modern tech solutions.
Freemium
FlutterFlow is a visual development platform that lets users build mobile and web apps quickly with drag‑and‑drop UI components, a visual logic editor, and native integrations with Firebase, Supabase, and REST APIs. It supports testing and code export for deployment.
Freemium
Autocoder.cc is a full-stack coding tool that generates front-end, back-end, and database components through conversational interaction, offering streamlined development and single-click deployment.
Free trial
DocuWriter.ai automatically generates technical documentation from source code, delivering Swagger‑compatible API docs, Postman collections, and UML diagrams. It produces test suites, adds code comments, refactors code, converts languages, and syncs updates via n8n in searchable knowledge spaces.
Paid
- $29
Brancher.ai is a no‑code platform that connects AI models for rapid app creation, letting users assemble GPT and vision models with visual blocks and 100+ templates. It integrates external APIs, tracks usage, and offers secure sharing.
Free
AnimeBuilder is a web‑based AI that turns photos or text prompts into high‑resolution anime‑style images. No registration or data storage, making it quick and secure for designers, illustrators, developers, and hobbyists.
Free
Appwizzy is a platform that simplifies web application and website development using AI. Users can define their app, choose templates, and deploy with support for various tech stacks, including PHP, Python, and Node.js, along with Git integration.
Freemium
Universe is a cross‑device no‑code website builder with drag‑and‑drop grid editing, AI‑assisted content placement, hundreds of templates, built‑in e‑commerce options, real‑time preview, and integrated traffic analytics with social media advertising support.
Freemium
ResumeBuilder.com lets users create professional resumes using 500+ free examples and 25 ATS‑friendly templates. The platform offers AI‑generated role phrases, keyword optimization, expert tips, mobile‑friendly editing, and export in TXT, Word, or PDF.
Freemium
BoltAI.dev is a no-code platform for web UI development, offering a drag-and-drop interface and AI-driven tools for prototyping. It enables rapid iteration, testing, and provides customizable frameworks with built-in data privacy controls.
Free
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
Pipedream is an automation platform tailored for developers, enabling integration of over 2,800 apps and 10,000 tools. Key functionalities include workflow building, managed authentication, and automation of processes like notifications and document summarization.
Free trial
TaskAGI is a no‑code platform that lets users build, test, and deploy AI agents via a visual workflow builder. It integrates over 1,000 services—CRM, email, e‑commerce—and supports web scraping, data extraction, and real‑time monitoring.
Subscription
- $19/mo
B12 is an AI-powered website builder that helps businesses launch a professional online presence quickly and easily. With B12, you can create a website with the tools you need, including invoicing, scheduling, documents and eSignatures, and email marketing. The platform also offers on-page SEO websi
Freemium
- $42/mo