> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.usebridge.com/documentation/getting-started/eligibility-sdk/typescript/installation/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.usebridge.com/_mcp/server.

The TypeScript SDK (`@usebridge/sdk`) runs eligibility checks on the server or in the browser, without React.

## Installation

The SDK requires the [Bridge TypeScript API client](https://www.npmjs.com/package/@usebridge/api) as a peer dependency:

**`npm`**

```bash title="npm" for="npm"
npm install @usebridge/api @usebridge/sdk
```

**`yarn`**

```bash title="yarn" for="yarn"
yarn add @usebridge/api @usebridge/sdk
```

## Example project

A working demo is available as the [`node` project](https://github.com/use-bridge/sdk-typescript/tree/main/examples/node) in the repository.

Copy `.env.example` to `.env` and set your publishable key and service type IDs:

```
BRIDGE_PUBLISHABLE_KEY="********-****-****-****-************"
BRIDGE_SERVICE_TYPES="svt_****,svt_****"
```

```bash
yarn workspace node-demo soft     # soft eligibility
yarn workspace node-demo hard     # hard eligibility
```

## Next Steps

* Follow the [Setup](./setup) guide to configure a client
* Review [Soft Check](./soft-check)

---

#### [Setup](./setup)

Configure `createBridgeClient` in your project