🤯 Stop Paying for SaaS Limits: Build Your $30/mo AI Powerhouse Stack 🛠️
🤯 Stop Paying for SaaS Limits: Build Your $30/mo AI Powerhouse Stack 🛠️ If you're building production AI agents, stop bleeding money on proprietary platforms. We leveraged a hybrid Brittle Core, Resilient Periphery stack for maximum control and fixed costs: ⚙️ The Fixed-Cost Core • Hostinger VPS: Provides a guaranteed fixed cost because it's designed to throttle bandwidth instead of charging expensive overages. • Dokploy: Simplifies managing the multi-container setup (Postgres + Redis for n8n Queue Mode), acting as a self-hosted PaaS wrapper for Docker Compose. 🚀 Performance & Architecture • Groq Speed: Achieve ultra-low latency (∼1000 TPS) using the GPT-OSS 20B model. Optimize costs instantly by structuring your prompts to maximize 50% input token discounts via Prompt Caching. • Layered Logic: The stack cleanly separates responsibilities: ◦ n8n (Integration Layer): The visual glue and webhook handler, leveraging its 1,100+ connectors. ◦ LangGraph + Pydantic (Process Layer): Handles complex, stateful agent orchestration and guarantees structured output needed for agent tool use. 🛡️ Resilience & Security We rely on generous free tiers for enterprise-grade durability and security: • Inngest: Critical for durable execution and managing the state, retries, and long pauses required by complex AI agent steps. (⚠️ Watch out: costs scale quickly as executions are counted per step, not per run). • Upstash QStash: Buffers incoming webhooks to protect the VPS from spikes, offering automatic retries and Dead Letter Queue functionality. • Cloudflare Workers: Act as the free API gateway (100k requests/day free) for our React/Vite admin panel. • Cloudflare Tunnel (cloudflared): Essential for Zero-Trust security, keeping the VPS firewall closed while routing external traffic securely to the local services. • Helicone: Integrates seamlessly to provide production-grade LLM observability, helping you track token usage, latency, and costs across providers like Groq, Together AI, or Fireworks AI.