# Arbitrum Sepolia

- **Chain ID:** `421614`
- **Tier:** docs-only
- **Docs:** https://docs.arbitrum.io/

Arbitrum Sepolia testnet contracts and explorer-supported tooling.

> Indexed source, ABI, and contract references.

## Query via AI agent

- **MCP endpoint:** `https://smarts.md/mcp`
- **Reference:** `chains/arbitrum-sepolia`
- **Sample prompt:** "Show me the supported contracts on Arbitrum Sepolia and summarize the highest-signal ones."


## Links

- Canonical page: <https://smarts.md/chains/arbitrum-sepolia>
- External docs: https://docs.arbitrum.io/