6 guides
API shortlists
A production AI agent API stack for 2026: model providers, tool APIs, MCP servers, browser automation, memory APIs, evals, security, and observability.
AI & machine learning · · 7 min read
API shortlists
Every API you need to build a production web app — auth, payments, email, storage, search, analytics, monitoring, and more. The definitive 2026 stack guide.
Identity & security · Payments & billing · Email & messaging · Files & media · Databases & backend · Search & web data · Analytics & customer data · Developer tools & API operations · AI & machine learning · · 10 min read
Tutorials
Stripe and Plaid payment system guide for 2026 — recurring billing, bank connections, invoicing, and the full production payment stack in one guide Updated.
Payments & billing · Financial data & operations · · 12 min read
Tutorials
Build a multi-channel communication system — SMS with Twilio, email with SendGrid/Resend, team notifications with Slack, and push notifications for 2026.
Email & messaging · Social & collaboration · · 13 min read
Tutorials
The complete SaaS backend stack — authentication with Clerk, payments with Stripe, analytics with PostHog, email with Resend, and how they connect in 2026.
Payments & billing · Identity & security · Analytics & customer data · Databases & backend · Email & messaging · · 17 min read
Tutorials
The API stack for AI apps in 2026 — LLM providers, embedding APIs, vector databases, guardrails, observability, and how to choose the right tool for each layer.
AI & machine learning · · 11 min read
