Running onchain apps used to mean babysitting nodes and guarding private keys. Even simple automations — like watching for payments and reacting — were fragile and slow to build. Today, we’ll fix that. You’ll build a fully autonomous onchain agent that uses Coinbase Developer Platform (CDP) Data APIs for real‑time awareness and Server Wallets v2 for secure, programmatic actions.

Running onchain apps used to mean babysitting nodes and guarding private keys. Even simple automations — like watching for payments and reacting — were fragile and slow to build. Today, we’ll fix that. You’ll build a fully autonomous onchain agent that uses Coinbase Developer Platform (CDP) Data APIs for real‑time awareness and Server Wallets v2 for secure, programmatic actions.

IntroductionWhat’s the biggest bottleneck when building data-rich on-chain apps? It’s not your idea — it’s the engineering headache of getting reliable, queryable blockchain data. For years, developers had two painful choices:Run your own indexing infra (expensive and brittle).Rely on rigid REST endpoints that can’t answer your custom questions.The Coinbase Developer Platform SQL API changes that. It’s a zero-infrastructure, production-grade indexing solution that lets you query live and hist...

IntroductionWhat’s the biggest bottleneck when building data-rich on-chain apps? It’s not your idea — it’s the engineering headache of getting reliable, queryable blockchain data. For years, developers had two painful choices:Run your own indexing infra (expensive and brittle).Rely on rigid REST endpoints that can’t answer your custom questions.The Coinbase Developer Platform SQL API changes that. It’s a zero-infrastructure, production-grade indexing solution that lets you query live and hist...

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...

Automating on-chain actions on Solana can feel risky: one bad key leak or buggy transaction and funds are gone. Traditional guards like code reviews and unit tests help, but they don’t stop a live transaction. Today, you’ll fix that with Coinbase Developer Platform (CDP) Server Wallets v2. We’ll create policies — API-level firewalls that allow only the transactions you intend.

Automating on-chain actions on Solana can feel risky: one bad key leak or buggy transaction and funds are gone. Traditional guards like code reviews and unit tests help, but they don’t stop a live transaction. Today, you’ll fix that with Coinbase Developer Platform (CDP) Server Wallets v2. We’ll create policies — API-level firewalls that allow only the transactions you intend.

Onchain social commerce has been too click-heavy: break out of the feed, connect a wallet, fight a checkout. Conversion drops. Miniapps on TBA (The Base App) + the x402 protocol fix this. Miniapps are lightweight web apps that run directly inside a TBA feed. x402 revives HTTP’s dormant 402 Payment Required to turn any API route into a vending machine for paid content—seamlessly funded by onchain payments via Coinbase Developer Platform.

Onchain social commerce has been too click-heavy: break out of the feed, connect a wallet, fight a checkout. Conversion drops. Miniapps on TBA (The Base App) + the x402 protocol fix this. Miniapps are lightweight web apps that run directly inside a TBA feed. x402 revives HTTP’s dormant 402 Payment Required to turn any API route into a vending machine for paid content—seamlessly funded by onchain payments via Coinbase Developer Platform.

App installs, cold-start social graphs, and clunky wallets kill growth. Traditional apps fight for app-store rankings while your users bounce before the first tap. Today we’ll build a Base Mini App — a lightweight, social-native web app that launches instantly inside clients like the Base App and Farcaster. Using MiniKit (for frames + native hooks) and OnchainKit (for polished UI + onchain utilities), you’ll ship a “Social Trivia” app that feels at home in the feed.

App installs, cold-start social graphs, and clunky wallets kill growth. Traditional apps fight for app-store rankings while your users bounce before the first tap. Today we’ll build a Base Mini App — a lightweight, social-native web app that launches instantly inside clients like the Base App and Farcaster. Using MiniKit (for frames + native hooks) and OnchainKit (for polished UI + onchain utilities), you’ll ship a “Social Trivia” app that feels at home in the feed.