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/build-on-base

@ef8bcd5 official
by basebase/skills120 stars
130
Run it yourself

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.

Use this Skill: https://skilld.dev/gh/base/skills/build-on-base

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referencesnetwork.md

≈335 tokens on demand. Your agent reads this file only when SKILL.md points to it.

Connecting to Base Network

Mainnet

Property Value
Network Name Base
Chain ID 8453
RPC Endpoint https://mainnet.base.org
Currency ETH
Explorer https://basescan.org

Testnet (Sepolia)

Property Value
Network Name Base Sepolia
Chain ID 84532
RPC Endpoint https://sepolia.base.org
Currency ETH
Explorer https://sepolia.basescan.org

Security

  • Never use public RPC endpoints in production — they are rate-limited and offer no privacy guarantees; use a dedicated node provider or self-hosted node
  • Never embed RPC API keys in client-side code — proxy requests through a backend to protect provider credentials
  • Validate chain IDs before signing transactions to prevent cross-chain replay attacks
  • Use HTTPS RPC endpoints only — reject any http:// endpoints to prevent credential interception

Critical Notes

  • Public RPC endpoints are rate-limited - not for production
  • For production: use node providers or run your own node (see run-node.md)
  • Testnet ETH available from faucets in Base documentation

Wallet Setup

  1. Add network with chain ID and RPC from tables above
  2. For testnet, use Sepolia configuration
  3. Bridge ETH from Ethereum or use faucets

Source: SKILL.md on GitHub

Skill behaviors

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Third-party checks

No alerts1mo3 checks · Risk SAFE
  • Gen Agent Trust Hub1mo

    The skill is a development playbook for the Base network that includes scripts for project analysis and wallet registration. It contains behavioral instructions that guide the agent through specific workflows and set mandatory rules for transaction attribution.

  • Socket1mo

    No alerts

  • Snyk1mo

    Risk: LOW · No issues

Provenance

Signed by skilld at ef8bcd5. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 2 weeks ago.

Activeupdated last month

Topics

  • base
  • l2
  • ethereum
  • smart-contracts
  • foundry
  • wagmi
  • viem
  • wallet-auth
  • payments
  • usdc
  • erc-8021
  • basescan
  • node-operation

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README badge for base/skills/build-on-base

What it does

Instructs Claude to deploy and build applications on Base L2, covering network setup (RPC/chain IDs), contract deployment with Foundry, wallet authentication via Base Account SDK, USDC payments, ERC-8021 builder code attribution, and migrations from OnchainKit or Farcaster MiniKit. Includes safety guardrails for private keys, payment verification, and transaction attribution.

Generated from the current SKILL.md.

Frequently asked

Does this skill cover both Base Mainnet and testnet setup?
Yes. It includes network configuration for Base Mainnet (chain ID 8453) and Base Sepolia testnet (84532), with RPC URLs, explorer config, and testnet ETH faucet setup.
What contract deployment tools does this skill use?
Foundry — specifically `forge create` for deployment and BaseScan verification. It does not cover Hardhat or other frameworks.
Does this skill include payment and wallet authentication?
Yes. It covers Base Account SDK for Sign in with Base (SIWB), Base Pay for USDC transactions, gasless payments, paymasters, and sub-accounts with spend permissions.
Can this skill help migrate from OnchainKit?
Yes. It includes step-by-step migration paths from OnchainKit to wagmi, and separate guides for migrating MiniKit to Farcaster SDK and converting Farcaster miniapps to regular Base apps.
Does this skill cover AI agent and trading bot registration?
Yes. It includes agent registration with ERC-8021 attribution wiring, builder code registration, and base.dev API integration for automated senders and trading bots.

Generated from the current SKILL.md. These answers refresh after source changes.