Base

Base MCP — gives your AI assistant access to a Base Account via the Base MCP server (wallet-mcp.coinbase.com). Wallet, portfolio, sending, swapping, signing, x402 payments, batched contract calls, and transaction history across supported chains.

Complete Base development playbook. Covers: (1) Network — Base RPC URLs, chain IDs (8453/84532), explorer config, testnet setup, connect to Base, Base Sepolia; (2) Contracts — Foundry deployment, forge create, BaseScan verification, CDP faucet, testnet ETH, deploy contract to Base; (3) Builder Codes — ERC-8021 attribution suffix, referral fees, dataSuffix for Wagmi/Viem/Privy/ ethers.js/window.ethereum, transaction attribution, earn referral fees, append builder code; (4) Agent registration — trading bots, AI agents, automated senders, ERC-8021 attribution wiring, base.dev API, register agent, builder code registration; (5) Node operation — run Base node, Reth setup, hardware requirements, self-hosted RPC, sync.

Validate and review Wallet MCP plugin files against the Plugin Specification. Use when writing a new plugin, preparing a plugin PR for submission, self-checking a plugin before opening a PR, or reviewing someone else's plugin PR. Triggers on requests like "check my plugin against the spec", "validate this plugin file", "review my plugin PR", "does this plugin conform to the spec", "prepare my plugin for submission", "write a plugin for X protocol".

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

Build on vibenet — Base's devnet for native account abstraction (EIP-8130), payer gas sponsorship (ERC-8168), and Cobalt 200ms native blocks. Use whenever the user mentions vibenet, EIP-8130, ERC-8168, 8130 accounts, native account abstraction, session keys, actors, policies, payers, gas sponsorship on Base, 200ms blocks, Cobalt, BaseTime, timestampMs / blockTimestampMs, sub-second or millisecond block timestamps, migrating from Flashblocks, or newHeads / WebSocket streaming on vibenet — or is writing code that creates or operates 8130 smart accounts, authorizes session-key actors, sends batched calls, sponsors gas with a payer, queries or streams vibenet blocks, times a transaction's inclusion, or wires a frontend/script against the vibenet devnet or Base Sepolia.

Wallet MCP — gives your AI assistant access to a Coinbase Wallet Account via the Wallet MCP server (wallet-mcp.coinbase.com). Wallet, portfolio, sending, swapping, signing, x402 payments, batched contract calls, and transaction history across Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, and Robinhood Chain.

Modify Base Depot CI workflows, especially PR cost controls, path filters, runner sizing, or optional integration checks.

Verifies Base local-devnet transaction inclusion using existing devnet commands and Foundry cast. Use when checking Base changes or demonstrating sequencer transaction inclusion.