Steal My Entire Tech Stack — Nick Cornelius | SimpliScale
SimpliScale
Operator's stack · May 2026

Steal My Entire Tech Stack.

Every tool, every workflow, every system I use to run KingCaller AI and SimpliScale. 40+ employees. Complete location independence. The full stack.

2 AI companies 2 companies 60+ clients Fully bootstrapped

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The full stack, tool by tool

Twelve categories. The tool I actually use. Why I picked it. What it costs. What to use if you don't want this one.

Tool 01
GoHighLevel — CRM + Sales Pipeline
$497/mo
WhatAll contact management, opportunities, pipelines, sales tracking.
WhyIntegrates with everything, white-label friendly, AI-ready.
AlternativeHubSpot if you need enterprise features.
Tool 02
Claude Opus 4.7 — AI Foundation (Anthropic API)
~$2,000/mo
WhatPowers OpenClaw, content generation, code, customer-facing AI.
WhyBest reasoning, 1M context, best at agentic workflows.
AlternativeGPT-5 if you need OpenAI ecosystem.
Tool 03
Replicate — Image Generation (Flux + custom models)
~$300/mo
WhatAd creative, YouTube thumbnails, client demos, founder photo training.
WhyAPI-first, runs custom Replicate models, pay-per-use.
AlternativeMidjourney (no API) or DALL-E direct.
Tool 04
Vapi + ElevenLabs + Cartesia — Voice AI
$0.05-0.10/min
WhatAll AI voice agents for clients (SimpliScale builds), KingCaller backend.
WhyLowest-latency stack, supports custom prompt logic.
AlternativeRetell AI for plug-and-play.
Tool 05
Contabo VPS — Infrastructure
$14/mo
WhatHosts OpenClaw (Docker), Memory Vault (Postgres + ChromaDB), N8N, custom dashboards, internal tools.
Why$14/mo vs $200+/mo on AWS. Full root access. No vendor lock-in.
SpecUbuntu 24.04 LTS, 8 CPU, 30GB RAM, 1TB SSD.
AlternativeHetzner if you want EU, AWS Lightsail for managed.
Tool 06
Vercel — Frontend Hosting
$20/mo
WhatEvery customer-facing site, every demo, every quiz, every report.
WhyBest DX, instant deploys, generous free tier, edge functions.
AlternativeNetlify or Cloudflare Pages.
Tool 07
Claude Code (CLI) — Code Editor
$200/mo
WhatPrimary AI coding interface, builds entire features in a session.
WhyBest agentic coding tool. Operates across files. Long-session reliability.
NoteIncluded with Claude Max subscription.
AlternativeCursor (IDE-based) or Aider (CLI alt).
Tool 08
Make.com + N8N — Automation Glue
$29/mo + free
WhatMake.com for client-facing automations, N8N self-hosted on Contabo for internal workflows.
WhyMake.com is faster to build, N8N is unlimited operations once you're scaled.
AlternativeZapier (more expensive at scale).
Tool 09
Next.js + React + Tailwind + Node.js — Stack
Free
WhatEvery web app, dashboard, internal tool, customer-facing demo.
WhyFastest path from idea → deployed. Massive ecosystem.
AlternativeSvelteKit if you want lighter bundles.
Tool 10
Memory Vault + Notion — Memory + Knowledge
$14 + $24/mo
WhatMemory Vault stores every Claude Code conversation with semantic search. Notion for docs, SOPs, team wiki.
WhyMemory Vault keeps Claude's context across sessions forever. Notion for collaborative knowledge.
AlternativeMem.ai for personal, just Notion for orgs.
Tool 11
Stripe + Mercury — Payments + Banking
2.9% + 30¢ / $0
WhatStripe for SimpliScale payments. Mercury for business banking + AP.
WhyStripe APIs are best in class. Mercury is the operator's bank for tech businesses.
AlternativeChase for traditional banking.
Tool 12
Telegram + Slack + Loom + OpenPhone — Communication
~$80/mo
WhatTelegram for OpenClaw notifications, Slack for team, Loom for async video, OpenPhone for client calls.
WhyEach is best-in-class for its mode. Combined = no context-switching tax.
AlternativeMicrosoft Teams (worse), Discord (community-oriented).
Tool 13
In-House Tools — Custom Builds
Built by Nick
WhySaaS at scale gets expensive and rigid. Each of these replaced a paid tool. All hosted on the same $14/mo Contabo box.
OpenClawMulti-channel AI assistant (Telegram, Discord, WhatsApp, Slack). The brain of operations.
Memory VaultSelf-hosted semantic memory for AI conversations.
Claude SwarmMulti-agent orchestration UI for parallel AI work.
AI News HubAutomated content + LinkedIn outreach engine.
Content PipelineReplaces Google Sheets for content production workflow.
Lead Database258K-lead searchable database, chat interface.

Total monthly stack cost

Everything above. All of it. Two AI companies running on this.

Full Stack — Monthly
~$3,200/mo
to run two AI companies with 40+ employees and 60+ clients.
Most agencies pay $8K–$15K/mo for less.

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Common questions

Why share this for free?
Most owners will see this and realize they need help implementing. Some will copy. Both outcomes are fine. The tools are public — the leverage is in knowing how to wire them together, and that takes years to figure out.
Can I use this exact stack?
Yes. Every tool listed is publicly available. Sign up to each one, follow the alternatives if a category doesn't fit your business, and start building today.
Will you help me set it up?
Yes — book an audit at /audit and we'll walk through implementation for your specific business. We do this for $1M+ service businesses every week.
How long did it take to build?
4 years of iterations. The current shape is the result of dozens of replaced tools, abandoned workflows, and rebuilt systems. What you see today is the version that survived 50+ rounds of "this isn't working — let's swap it."

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