Sdk Js

Klever Marketplace for Claude Code

The official Claude Code plugin marketplace for Klever. Install Klever's plugins to connect Claude Code to on-chain data, smart contracts, and developer tooling in the Klever ecosystem.

Quick start

From inside Claude Code, add the marketplace:

/plugin marketplace add klever-io/klever-marketplace

Then browse and install plugins:

/plugin

Or install a specific plugin directly:

/plugin install klever-vm@klever-marketplace

After installation, restart Claude Code (or run /plugin to enable) and the plugin's tools will appear in your session.

Available plugins

Plugin	Description	Install
klever-vm	HTTP MCP server at https://mcp.klever.org/mcp that exposes Klever VM data and tooling to Claude	/plugin install klever-vm@klever-marketplace
sdk-js	Build Klever wallet integrations for React web apps and Node.js services using the Klever Connect SDK	/plugin install sdk-js@klever-marketplace

CLI alternatives

All marketplace operations are also available from the terminal:

# Add the marketplace
claude plugin marketplace add klever-io/klever-marketplace

# Install a plugin
claude plugin install klever-vm@klever-marketplace

# List installed plugins
claude plugin list

# Update the marketplace catalog
claude plugin marketplace update klever-marketplace

# Uninstall a plugin
claude plugin uninstall klever-vm@klever-marketplace

You can also install the MCP server directly (without the plugin wrapper) using:

claude mcp add -t http klever-vm https://mcp.klever.org/mcp

Installing through the marketplace is recommended because it groups Klever tooling under a single catalog, tracks versions, and enables one-click updates.

Repository layout

klever-marketplace/
├── .claude-plugin/
│   └── marketplace.json          # Marketplace catalog (lists all plugins)
├── plugins/
│   └── klever-vm/
│       ├── .claude-plugin/
│       │   └── plugin.json       # Plugin manifest
│       └── .mcp.json             # MCP server definition
└── README.md

• .claude-plugin/marketplace.json is the catalog Claude Code reads when users run /plugin marketplace add.
• Each plugin lives in plugins/<plugin-name>/ with its own .claude-plugin/plugin.json manifest.
• Plugins that bundle an MCP server declare it in .mcp.json at the plugin root.

Adding a new plugin

1. Create a new directory under plugins/ (kebab-case name, no spaces).
2. Add .claude-plugin/plugin.json with at minimum a name and version.
3. Drop plugin components into the plugin root:
   • .mcp.json for MCP servers
   • skills/<name>/SKILL.md for skills
   • commands/*.md for slash commands
   • agents/*.md for subagents
   • hooks/hooks.json for lifecycle hooks
4. Register the plugin in .claude-plugin/marketplace.json by adding an entry to the plugins array with a relative source path.
5. Validate locally:

   claude plugin validate .
   

6. Test locally before publishing:

   /plugin marketplace add ./klever-marketplace
   /plugin install <your-plugin>@klever-marketplace
   

Plugin manifest example

plugins/<plugin-name>/.claude-plugin/plugin.json:

{
  "name": "plugin-name",
  "version": "1.0.0",
  "description": "What this plugin does",
  "author": { "name": "Klever" },
  "mcpServers": "./.mcp.json"
}

MCP server configuration

For an HTTP MCP server, plugins/<plugin-name>/.mcp.json:

{
  "mcpServers": {
    "server-id": {
      "type": "http",
      "url": "https://your-mcp-endpoint/mcp"
    }
  }
}

For a local command-based MCP server, use command and args instead of type/url. Use ${CLAUDE_PLUGIN_ROOT} to reference files bundled with the plugin.

References

• Claude Code plugins
• Plugin marketplaces
• Plugins reference
• MCP documentation

License

MIT