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# Installation

> **Server-side only.** This package includes server-native dependencies (`@agentkarma/sdk`, `@celo/attribution-tags`) that cannot be bundled for the browser. Import it only from Node.js environments — API routes, background workers (BullMQ / Vercel Cron), or CLI scripts.

```bash
npm i @andrewkimjoseph/celina-sdk
```

## Requirements

* **Node.js** ≥ 20
* A Celo mainnet RPC URL (defaults to `https://forno.celo.org`)
* Optional: Ethereum RPC URL for ENS resolution on Ethereum mainnet

## Peer dependencies

The SDK uses [viem](https://viem.sh) internally. For wallet signing in the browser, pair it with [wagmi](https://wagmi.sh):

```bash
npm i wagmi viem @tanstack/react-query
```

Celina SDK prepares unsigned transactions; wagmi/viem handles signing and broadcasting.

## Optional: sign-time simulation

For wallet apps, import `@andrewkimjoseph/celina-sdk/simulation` and call `simulatePreparedStep` immediately before each send. The subpath is browser-safe (viem + types only; no Node analytics). See [Prepared-step simulation](/celina-sdk/guides/prepared-step-simulation.md).


---

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