What is App Stack Builder?

App Stack Builder is a free AI-powered tool that helps founders and developers choose the right tech stack for their projects based on budget, app type, team size, and skill level.

What is the best tech stack for SaaS in 2026?

The best tech stack for SaaS in 2026 typically includes Next.js 16 for frontend, Supabase for database and auth, Vercel for hosting, Stripe for payments, and PostHog for analytics. App Stack Builder can generate a personalized recommendation based on your specific budget and requirements.

Is App Stack Builder free to use?

Yes, App Stack Builder is completely free to use. You can generate unlimited tech stack recommendations without any cost.

What types of apps can I build with the recommended stacks?

App Stack Builder supports various app types including SaaS applications, web apps, mobile apps, e-commerce stores, internal tools, and AI/ML products.

How much does a SaaS tech stack cost per month?

A modern SaaS tech stack can cost anywhere from $0-50/month for bootstrapped startups using free tiers, $100-300/month for growth-stage startups, to $500+/month for enterprise-ready infrastructure. App Stack Builder helps you find the best tools within your specific budget.

What is the best tech stack for solo founders?

For solo founders, we recommend Next.js + Vercel (free), Supabase (free tier), Supabase Auth (free), Stripe (pay as you go), and Plausible or PostHog for analytics. This stack can run your entire SaaS for under $50/month.

Can I export my tech stack recommendations?

Yes, you can export your tech stack recommendations as a PDF document or copy them to your clipboard. You can also share a link to your stack with others.

AI Gateways & LLM ProxiesFree tier

Portkey: Pricing, Features & Alternatives

Portkey combines a gateway and an observability layer. The gateway gives one API across model providers with retries, fallbacks, load balancing, caching and guardrails; the observability side records logs, traces and feedback. The gateway itself is open source and can be self-hosted. The hosted Developer plan is free for 10K recorded logs a month (requests over the limit still go through, they just are not logged). Production is $49/month for 100K logs plus $9 per extra 100K, and adds semantic caching, RBAC and alerts. Enterprise adds private cloud, VPC hosting, SSO and HIPAA.

Portkey Pricing Plans (2026)

Plan	Price	Highlights
Developer	$0	10K recorded logs / month · Gateway with fallbacks and retries · 3-day log retention
ProductionPopular	$49 / month + $9 per extra 100K logs	100K recorded logs / month · Semantic caching · RBAC and alerts
Enterprise	Custom	Private cloud or VPC · SSO · SOC 2, GDPR, HIPAA
Open Source	$0 (self-hosted gateway)	Universal API · Routing and fallbacks · Basic dashboard

Pricing summary: Free · paid from $49/mo. Always confirm current pricing on the official site.

Key Portkey Features

100K recorded logs / month
Semantic caching
RBAC and alerts
30-day log retention

Pros

+Gateway and observability in one product
+Open-source gateway you can self-host
+Guardrails and semantic caching

Cons

−Free plan keeps logs for only 3 days
−Log-based pricing grows with traffic
−Private deployment is Enterprise-only

Best Portkey Alternatives

Compare all

LiteLLM

Free · paid plans by quote

Helicone

Free · paid from $79/mo

Cloudflare AI Gateway

Free · paid from $5/mo

Portkey Compared

Portkey vs LiteLLM Portkey vs Helicone Portkey vs Cloudflare AI Gateway

In-depth guideOpenRouter vs LiteLLM (2026): Hosted AI Gateway vs Open-Source LLM ProxyOpenRouter is a hosted service: one key, 500+ models, a 5.5% fee on credits. LiteLLM is MIT-licensed software you run yourself, with virtual keys and budgets per team. How each works, what the gateway costs at three spend levels, and why this site runs on OpenRouter.

Portkey FAQ

What is Portkey used for?⌄

Portkey is a ai gateways & llm proxies tool. AI gateway with built-in observability: route to any model with fallbacks, caching and guardrails, then trace every request.

Is Portkey free?⌄

Yes — Portkey has a free tier you can start with, and paid plans for more usage and features.

How much does Portkey cost?⌄

Portkey offers a free tier, with paid plans starting at $49/month. Some plans are usage-based (pay-as-you-go).

What are the best Portkey alternatives?⌄

Popular Portkey alternatives include LiteLLM, Helicone, Cloudflare AI Gateway. Compare pricing and features on our Portkey alternatives page.