Tired of “sign up, add card, get API key” loops? Bazaar + x402 flips the model — your AI agent can now discover, pay, and use APIs directly via HTTP 402 responses — no accounts, no subscriptions. In this post, we walk you through building a full 402-powered API Bazaar: 🧭 List and discover services 💳 Handle pay-per-request APIs with x402 🔁 Automate payments and retries 🧪 Run the entire loop in one Node.js script Build a pay-as-you-go Web3 API marketplace your agents can use autonomously.

Tired of “sign up, add card, get API key” loops? Bazaar + x402 flips the model — your AI agent can now discover, pay, and use APIs directly via HTTP 402 responses — no accounts, no subscriptions. In this post, we walk you through building a full 402-powered API Bazaar: 🧭 List and discover services 💳 Handle pay-per-request APIs with x402 🔁 Automate payments and retries 🧪 Run the entire loop in one Node.js script Build a pay-as-you-go Web3 API marketplace your agents can use autonomously.

Seed phrases, gas pop-ups, “approve then transfer” — the classic wallet UX slows users (and your growth) to a crawl. Base Accounts fix this. Built on ERC-4337, they’re a programmable, multi-chain account layer that unlocks passkeys, social recovery, sponsored gas, batching, and more. In this hands-on guide, you’ll learn why Base Accounts matter and how to ship a production-grade app: passwordless auth, one-tap USDC payments, gasless calls, sub-accounts for zero-prompt interactions...

Seed phrases, gas pop-ups, “approve then transfer” — the classic wallet UX slows users (and your growth) to a crawl. Base Accounts fix this. Built on ERC-4337, they’re a programmable, multi-chain account layer that unlocks passkeys, social recovery, sponsored gas, batching, and more. In this hands-on guide, you’ll learn why Base Accounts matter and how to ship a production-grade app: passwordless auth, one-tap USDC payments, gasless calls, sub-accounts for zero-prompt interactions...