Backend Api
The best 50 Backend Api AI tools - Free & Paid
Explore 50 AI for Backend Api
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
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
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, human‑in‑the‑loop workflows.
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
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
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
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
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
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
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
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
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
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
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
Provides API access to pretrained image generation models for text‑to‑image, image‑to‑image, and inpainting, with real‑time editing. Supports single‑call Dreambooth/LoRA training without local GPU, plus voice cloning, text‑to‑3D, interior design, and video creation.
Paid
- $27/mo
Webapi.ai delivers AI‑powered virtual agents that handle multi‑step 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 ready‑to‑use API in seconds, automatically extracting structured data (JSON, CSV, XML, Excel). It offers real‑time webhooks, built‑in enrichment, proxy rotation, monitoring, and search‑engine scraping for developers, marketers, and analysts.
Freemium
- $75/mo
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
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
RealEstateAPI provides developers and real estate professionals with efficient access to extensive property data, offering features like bulk searches, property comparisons, and geo JSON parcel boundaries, all designed for high-performance data processing and historical analysis.
Freemium
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
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
Apiframe is a unified REST API for AI media generation that standardizes access to image, video, music and headshot models (Midjourney, Luma, DALL·E, Runway), offering async jobs, webhooks, batching, CDN hosting, workflow chaining and integrations for scalable pipelines.
Freemium
- $19/mo
BotPress is a platform for building and managing AI agents that power contextual, stateful conversations. It features an Agent Studio for rapid creation and supports extensive integrations, knowledge bases, and custom code for automation across various industries.
Freemium
- $89/mo
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
Convex is a TypeScript backend platform that syncs app data in real time across frontend, backend, and database. It offers authentication, cron jobs, AI code generation, modular components, and integrates with React, Next.js, Remix, Vue, and Svelte, a developer portal.
Freemium
Langbase offers a serverless platform for building, deploying, and scaling AI agents. It unifies access to 600+ LLMs, provides built‑in memory, vector, and file storage, and supports durable multi‑step workflows with monitoring and custom actions.
Freemium
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
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
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
Alfred automatically generates integration code and data models from an OpenAPI spec, answers natural‑language API queries, and delivers language‑specific snippets for rapid implementation across platforms, reducing support tickets and speeding API onboarding.
Subscription
- $233/mo
Flatlogic AI auto‑generates complete React/Node/PostgreSQL web applications from chat prompts, adding authentication, role access, CRUD, and API docs. Users own the source, with GitHub integration and dual environments for continuous deployment, accelerating MVP and SaaS development.
Freemium
- $18/mo
Sutro auto‑generates production‑grade backends from SLang data models, creating schemas, APIs, validation, and authentication. It eliminates boilerplate, syncs documentation, and supports prompt‑to‑backend and Figma‑to‑code conversions.
Freemium
DeepSeek API, available via Kie.ai, provides access to DeepSeek models R1 and V3 for complex reasoning and natural language processing.
Freemium
Middleware.io is an AI-driven cloud observability platform designed for middleware businesses. It provides real-time monitoring of infrastructure, applications, logs, errors, and performance, enabling swift issue resolution and cost-effective observability optimization.
Freemium
- $10/mo
Portkey is an LLMOps platform offering a unified API and model catalog with observability, guardrails, RBAC, audit logs, prompt management, caching, routing and PII redaction to simplify multi-model integration, governance, monitoring, and cost optimization.
Free
- $49/mo
Finlight Real-Time Financial News API offers real-time financial data and AI-driven sentiment analysis with advanced query options. It supports multiple integration methods, enabling seamless incorporation of market intelligence into applications and automated systems.
Free trial
BIK is an AI commerce platform that offers 100+ agents for acquisition, retention, support, order management, and analytics. It integrates with Shopify, APIs, webhooks, uses NLP for tickets, translations, and AI recommendations, and gives merchants data ownership and real‑time updates.
Paid
Entry Point is an AI training platform that simplifies fine-tuning large language models using OpenAI and AI21 APIs.
Freemium
HireBase is an AI‑powered job search engine that scans 2.3 million employer‑direct postings, delivering real‑time, spam‑free listings. It offers advanced filters and an API for hiring data, enabling up‑to‑date recruitment and job‑matching.
Freemium