Auth0 vs cto.new (formerly Backengine)
Compare Auth0 vs cto.new (formerly Backengine) and see which AI Web Apps tool is better when we compare features, reviews, pricing, alternatives, upvotes, etc.
Which one is better? Auth0 or cto.new (formerly Backengine)?
When we compare Auth0 with cto.new (formerly Backengine), which are both AI-powered web apps tools, There's no clear winner in terms of upvotes, as both tools have received the same number. Since other aitools.fyi users could decide the winner, the ball is in your court now to cast your vote and help us determine the winner.
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Auth0

What is Auth0?
Auth0 is a customer identity and access management platform from Okta. It handles authentication and authorization for web, mobile, and API applications so development teams can add login, SSO, and access controls without building identity infrastructure from scratch.
The platform covers B2C consumer apps, B2B SaaS products, and internal tools. Developers integrate via SDKs and quickstarts for stacks like React, Next.js, iOS, Android, Java, .NET, and Python. Auth0 also ships dedicated tooling for securing AI agents, including user authentication before agent access, Token Vault for scoped API credentials, and fine-grained authorization for RAG pipelines.
Auth0 reports blocking 3 billion-plus attacks monthly across Okta and Auth0 platforms, 99.99% uptime, and 10 billion-plus authentications per month. Customers listed on the site include Siemens, Signify, Zapier, Wyndham Hotels, and the City of Los Angeles.
cto.new (formerly Backengine)

What is cto.new (formerly Backengine)?
cto.new lets you build apps, autonomous agent teams, and full AI businesses on frontier models from Anthropic, OpenAI, Gemini, Mistral, Grok, and DeepSeek without supplying a credit card or personal API keys. You spin up web and mobile apps, multi-agent teams, and full AI businesses from a single chat workspace inside hosted cloud sandboxes.
The product centers on agent teams that can browse the web, send email, schedule tasks, and connect to external tools through MCP servers. Integrations listed on the site include Linear, Sentry, Vercel, and Notion, with support for adding any MCP-compatible server. Web app projects ship with Convex as the default backend, giving new builds database, auth, file storage, and serverless functions without separate setup.
Where most AI coding tools sell subscriptions and cap model usage, cto.new keeps a free forever tier that is ad-supported with daily limits that reset each day. Its marketplace sells ready-made multi-agent businesses you deploy in one click, closer to hiring a prefab team than prompting a single chatbot.
The free tier covers frontier models, unlimited AI businesses, web and mobile apps, CTOClaw agents, and MCP integrations. Premium starts at $20 per month for higher usage, pro agent features, and premium model access.
Auth0 Upvotes
cto.new (formerly Backengine) Upvotes
Auth0 Top Features
Universal Login and Embedded Login flows with branding controls for web and mobile apps
Single sign-on across enterprise federation, social logins, and username-password setups
Multifactor authentication with adaptive MFA that triggers only on risky login attempts
Passwordless authentication and breached password detection to reduce credential risk
Token Vault for AI agents to request short-lived tokens instead of storing third-party API keys
Fine-grained authorization APIs for access control in B2B SaaS and RAG document retrieval
Machine-to-machine authentication for APIs, background jobs, and IoT device communication
Actions and Forms extensibility to customize signup, login, and identity workflows without new backend code
30-plus SDKs and quickstarts to integrate Auth0 into common languages and frameworks in minutes
cto.new (formerly Backengine) Top Features
Sign up free with no credit card or personal API keys required
Marketplace teams map roles to models like Claude Sonnet 4.6 and GPT-5
MCP integrations connect Linear, Sentry, Vercel, Notion, and custom MCP servers
Web app builds include Convex backend with database, auth, and file storage preconfigured
Run multi-agent teams with web browsing, email, and scheduling built in
Premium plan starts at $20 per month for higher usage and premium model access
Auth0 Category
- Web Apps
cto.new (formerly Backengine) Category
- Web Apps
Auth0 Pricing Type
- Freemium
cto.new (formerly Backengine) Pricing Type
- Freemium
