install.md
extism

extism

/

js-pdk

Step-by-step integration guide via MCP (Model Context Protocol) delivery

Connect to this remote MCP server for js-pdk integration guidance.

https://install.md/extism/js-pdk
1

Connect your coding agent via MCP

Add this MCP server URL to your coding agent's configuration:

https://install.md/extism/js-pdk
2

Start the integration

If your agent supports it, start with this prompt:

/use-js-pdk

Otherwise, send a prompt like "Start integration with js-pdk"

Write Extism Plugins in JavaScript

The JS PDK enables developers to write plugin code in JavaScript (or TypeScript), and simplify the typical interoperability requirements between a host application (where the plugin is run), and the plugin itself.

This guide will cover steps to install the extism-js compiler, to write a plugin (using input from an existing application's extension point, or with fake test data), to compile the plugin to a .wasm file, and how to call it's exported functions.

Agent Integration Preview

How your coding agent will interact with this MCP server

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Step Timeline

Installation Guide

1. Pick your coding agent

Pick your coding agent to learn how to add this guide:

2. Available Tools

Your coding agent can access:

get_overview()
fetch(url)
search(query)
Install the compiler and library tools
Install the Extism CLI
Generate a new plugin
Implement the plugin
Compile the Plugin code
Run the plugin
WASI and JS Plugins

3. Follow the Guide

Your coding agent will automatically guide you through each step.

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