
Latitude 10 Starter Kit
A Rails API on Supabase Postgres and a Next.js frontend on Vercel, wired together and deploy-ready.

Software we've built and sell: source-code kits, the same code behind every listing sprint, and design systems for coding agents. Pick a product to see everything it includes.
16 products in 2 categories
Production-ready starting points with a setup wizard: a Rails + Next.js starter, an agent payments paywall, an agent production API, an MCP server for your API, agent-ready middleware for the API you have, a gateway that governs your agents’ tool calls, a spend guard for agents that pay, a trace kit that shows what your agents did, an eval kit that tests it, and a free payments sandbox.

A Rails API on Supabase Postgres and a Next.js frontend on Vercel, wired together and deploy-ready.

Let AI agents pay for your API or MCP server with x402 and Lightning — as code you own.

Everything between “my agent works” and “I can safely put it in production.”

Turn your existing API into a production MCP server in 10 minutes.

Make the API you already have agent-ready. Same process, same deploy.

Every tool call your agents make goes through one door you control.

Let your agents pay for things without handing them your wallet.

Every step your agent took, what it cost, and why it stopped.

Tests for what your agent does, not just what it says.

Every way an agent payment can go wrong, on your laptop, for $0.

Every agent kit in one zip: build, trace, test, govern and get paid.
Original DESIGN.md design systems for Claude Code, Cursor and Codex, with Tailwind and shadcn/ui themes. WCAG AA.

Fintech, treasury, payments and crypto dashboards, where the numbers are the product.

Developer tools, APIs, docs sites, CLIs and infrastructure consoles.

Portfolios, studios, magazines, newsletters and long-form writing.

Ledger, Terminal and Atelier together, each licensed for unlimited projects.

SaaS products people use all day: admin consoles, CRMs, internal tools.
Every product here can also be bought by an AI agent on its own, with no account or checkout page: it asks for the product, gets an HTTP 402 with the price, pays in USDC over x402 and asks again. See the whole flow, step by step, with diagrams.