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Choose your AI coding stack without the guesswork

Practical, source-checked guides for builders, solo founders, and semi-technical operators: which AI coding tool to use, what it really costs per month, and starter kits to ship faster.

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Vibe Coding Cost Comparison

What a realistic AI coding stack actually costs per month — Claude, Codex, Cursor, Gemini, and the infrastructure underneath.

Read the breakdown

Voice Agent Starter Kit

A working voice agent built on the Vercel AI SDK 7 and AI Gateway realtime voice — wiring, prompts, and deploy config so you skip the plumbing and ship the idea.

Get the kit on Gumroad

The AI Career Lab API

Free, read-only REST API for our whole catalog — profession-specific AI tools, Claude Cowork plugins, packs, and guides — with an OpenAPI 3.1 spec, JSON errors, and Markdown content negotiation on every page. No key required.

API documentationopenapi.jsonllms.txt

Latest guides

Guide

The Going Rate for an AI Agent's API Call Is Two Cents — a 78,267-Endpoint x402 Pricing Report

We analyzed the full TOLL·402 dataset of x402 pay-per-call endpoints: median prices, the one-provider trap in the $0.02 mode, how many endpoints actually quote a price, and what to charge for yours.

Jul 10, 202610 min read
Guide

We Built an MCP Server That AI Agents Pay — the Full x402 Loop, Verified On-Chain

A field report on x402 agent payments: per-call USDC pricing on MCP tools, the client-side payment loop nobody documents, and seven gotchas from getting real money to settle on-chain.

Jul 2, 202612 min read
Guide

Vibe Coding Mistakes: 12 Ways AI-Generated Apps Break in Production (and How to Fix Each)

Vibe coding produces great first screens and fragile internals. Here are the 12 failure modes AI-generated apps hit in production — leaked keys, unvalidated tool inputs, silent mutations, package bloat — each with a concrete fix.

Jul 1, 202611 min read
Guide

Best AI Coding Stack for Solo Founders (2026)

The exact AI coding stack to buy as a solo founder: one $20 agent, free hosting and database to start, and a clear rule for when to upgrade — without paying for overlapping tools.

Jun 30, 20269 min read
Comparison

Codex CLI vs Claude Code vs Gemini CLI vs OpenCode (Aug 2026)

Codex CLI vs Claude Code vs Gemini CLI vs OpenCode, compared on install, auth, repo access, sandboxing, models, and cost — checked Aug 2026.

Jun 30, 202612 min read
Comparison

Claude Code vs Codex: Which Is Better for Building an App?

An opinionated comparison of Claude Code and OpenAI Codex for building real apps — pricing, surfaces, strengths, weaknesses, and a clear recommendation for which ecosystem to pick.

Jun 30, 202610 min read
Comparison

Claude Desktop vs Codex App for Coding: Which Should You Use?

Claude desktop app vs the OpenAI Codex app for coding: what each 'app' is, which OS they run on, how they relate to the CLI and web, and who each is for.

Jun 30, 20269 min read
Comparison

Codex App vs Codex CLI: Which Should You Use?

Codex app vs Codex CLI: the desktop app for supervising several agents with visual review, the CLI for terminal-first work in one repo — when to use each.

Jun 30, 20268 min read
Comparison

Cursor vs Google Antigravity: Which Agentic IDE Should You Use?

Cursor is the AI-first code editor for developers who want a fast agent inside a familiar editor. Google Antigravity is an agent-first platform built to run and supervise multiple coding agents in parallel. Here's how to choose.

Jun 30, 202610 min read
Comparison

Vibe Coding Cost Comparison: Claude, Codex, Cursor, and Gemini in 2026

What an AI coding stack actually costs per month. Real prices for Claude Code, Codex, Cursor, and Gemini CLI, plus the infrastructure underneath — with the hidden costs nobody quotes you.

Jun 30, 202611 min read

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