> ## Documentation Index
> Fetch the complete documentation index at: https://bun.manicule.dev/llms.txt
> Use this file to discover all available pages before exploring further.
> For every page in one file, fetch https://bun.manicule.dev/llms-full.txt (large).
> To search and read these docs as tools, connect the MCP server at https://bun.manicule.dev/api/mcp.
> Every agent surface: https://bun.manicule.dev/.well-known/llms-manifest.json

# Node-API (/runtime/node-api)

<!-- agent-signals: reading_time_min: 1 · est_tokens: 125 · updated: 2026-08-02 -->
Related: [Watch Mode](/runtime/watch-mode.md), [Debugging](/runtime/debugger.md), [REPL](/runtime/repl.md), [bunfig.toml](/runtime/bunfig.md), [File Types](/runtime/file-types.md), [Module Resolution](/runtime/module-resolution.md)

> Use Bun's Node-API module to build native add-ons to Node.js

Node-API is an interface for building native add-ons to Node.js. Bun implements this interface from scratch, so most existing Node-API extensions work with Bun out of the box.

As in Node.js, you can `require()` `.node` files (Node-API modules) directly.

```js
const napi = require("./my-node-module.node");
```

Alternatively, use `process.dlopen`:

```js
let mod = { exports: {} };
process.dlopen(mod, "./my-node-module.node");
```