> For the complete documentation index, see [llms.txt](https://docs.megaeth.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.megaeth.com/moss-docs/index.md).

# MOSS Wallet SDK

Embedded wallet for MegaETH apps: connect, signing, transfers, contract calls, paymaster flows, and server-side verification through one SDK surface. Frontier Mainnet (chain ID `4326`) is live at `https://mainnet.megaeth.com/rpc`.

## Pick a Track

For framework-agnostic JS/TS apps, integrate the [**Core SDK**](/moss-docs/core-sdk/installation.md) directly. For React apps, use the [**React SDK**](/moss-docs/react-sdk/overview.md) with provider + hook architecture and TanStack Query semantics. For backend auth and delegated key ownership checks, use the [**Server Verify**](/moss-docs/wallet/server-verify.md) package. If your React app already uses wagmi, the [**Wagmi Connector**](/moss-docs/react-sdk/wagmi-connector.md) drops MOSS in as a wagmi connector. For terminal, scripting, and CI workflows, the [**MOSS CLI**](/moss-docs/wallet/cli.md) gives scoped command-line access to a MOSS account.

For install through first transaction, see the [**Quickstart**](/moss-docs/wallet/quickstart.md).

## Build Deeper

* [**Methods Reference**](/moss-docs/methods/methods.md) — every method, hook, type, and return contract.
* [**Smart Approvals (Policy Engine)**](/moss-docs/core-sdk/permissions.md) — session grants that let approved actions run without repeated prompts.
* [**Paymaster Guide**](/moss-docs/wallet/paymaster-setup.md) — sponsor gas via `sponsorUrl`, choose a sponsor mode, or use built-in ERC-20 gas payment.
* [**Integration Checklist**](/moss-docs/wallet/integration-checklist.md) — plan UX, permissions, gas, security, and rollout before kickoff.
* [**Best Practices**](/moss-docs/wallet/best-practices.md) — restrictive permission defaults, production hardening, common pitfalls.
* [**Migrating from Privy**](/moss-docs/wallet/privy-migration.md) — move a user's assets from a Privy embedded wallet into MOSS.
* [**Security Audits**](/moss-docs/wallet/audits.md) — independent audits of the Normal Account smart contract.
* [**AI Agent Guide**](/moss-docs/wallet/ai-agent-guide.md) — policy-first patterns for agent-driven execution.

For chain-level documentation — JSON-RPC reference, MegaEVM, gas model, network endpoints — see [docs.megaeth.com](https://docs.megaeth.com).


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