> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stable.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Connect to Stable, confirm the chain ID, and see what changes from Ethereum before you build.

Stable is a Layer 1 where USDT0 is the native gas token, and standard EVM tooling (Solidity, Foundry, Hardhat, ethers, viem, and the `eth_*` JSON-RPC methods) works unchanged.

Point your RPC at Stable and confirm the chain ID:

```text theme={"dark"}
988
```

make sure you have [foundry](https://www.getfoundry.sh/) installed to test the following command:

```bash theme={"dark"}
cast chain-id --rpc-url https://rpc.stable.xyz
```

For the full list of endpoints (mainnet and testnet), see [Connect](/en/reference/connect).

## What to read next

If you haven't sent a transaction on Stable yet, start with [Quick start](/en/tutorial/quick-start) for a quick walkthrough on testnet. Then pick the path that matches what you're building:

* Wallets, delegation, and agent accounts → [Accounts](/en/explanation/accounts-overview).
* Moving USDT0 or building payment flows → [Payments](/en/explanation/payments-overview).
* Deploying smart contracts → [Contracts](/en/explanation/contracts-overview).
* Wiring AI editors or building agent-paid services → [AI/Agents](/en/explanation/ai-agents-overview).
* Running a full or archive node, ecosystem providers, or covering gas → [Infrastructure](/en/explanation/integrate-overview).

Before you ship, [Core concepts](/en/explanation/core-concepts) covers four behaviors that differ from Ethereum (USDT0 dual role, guaranteed blockspace, transfer aggregator, EVM finality). [Production readiness](/en/how-to/production-readiness) is the mainnet-readiness checklist.