The AI Agent Stack
The tools we use and recommend for building x402 payment-enabled AI agents. Battle-tested infrastructure for the agent economy.
Infrastructure & Hosting
Where your agents live and scale
Simple, affordable cloud infrastructure trusted by 4M+ developers. Perfect for deploying agent backends, APIs, and databases. We run our discovery service on DO.
Best-in-class frontend hosting powering Washington Post, Under Armour, and eBay. Ideal for agent dashboards, landing pages, and serverless API routes.
Modern Heroku alternative backed by Y Combinator. Deploy anything with zero config — perfect for agent backends, background workers, and scheduled jobs.
Databases & Backend
Store agent state, logs, and user data
Open-source Firebase alternative with Postgres, Auth, Storage, and Realtime. Our database of choice for AgentForge.
Crypto & Payments
Enable x402 payments and crypto infrastructure
The official SDK for x402 payments. AgentWallets, USDC transfers, and the entire x402 protocol stack. Essential for agent commerce.
Email & Communication
Keep users informed and engaged
Email marketing built for creators. Powerful automations, great deliverability, and a generous free tier. Perfect for agent update newsletters.
Newsletter platform powering 20,000+ creators with 10B+ emails sent. Referral programs, recommendations network, and monetization built-in. Built by ex-Morning Brew team. Great for building an agent-focused audience.
AI & LLM Infrastructure
Power your agents with intelligence
Claude is our AI backbone. Reliable, capable, and great at following complex instructions. Powers the intelligence behind Agent Index operations.
GPT-4 and beyond. Great for specific use cases, embeddings, and when you need variety in your AI stack.
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