Agentwright Starter

Agentwright is a Next.js starter kit for building Claude-powered SaaS products that track what every user costs you. Key features: • Streaming agent loop with tools and prompt caching • MCP connectors for extending agent capabilities • Per-request cost metering with price snapshots • Plan caps and rate limits per user • Sign-in and billing included • Eval runner for testing agent behavior • One TypeScript codebase of about 3,338 lines that you can read in an afternoon. The kit wires the hard parts of a Claude agent product together so you can focus on your own features. Every model call is metered and stored with the price in effect at the time, so usage reports stay accurate even when pricing changes. Plan caps and rate limits help stop any single user from running up unexpected bills, and the usage page shows each signed-in user their cost, token count, and spend by model. Built on Next.js 15, TypeScript, the Anthropic TypeScript SDK, the MCP SDK, Drizzle with Postgres, Auth.js v5, and Tailwind v4, the code is small enough to review before you buy. A setup sequence gets a local dev server running after you add your keys and migrate the database. The admin license page also lets you issue, resend, or revoke license keys if you sell your own products. Ideal for indie hackers, small SaaS teams, and developers who want to launch a Claude-based agent product without rebuilding metering, billing, and auth from scratch. One-time payment of $99 with a 14-day refund window.