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Agent Toolbox

Official registry Developer tools

Free, no-key MCP server: token estimates, JSON Schema conversion, MCP configs, tool search.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http agent-toolbox 'https://agenttoolbox.net/api/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "agent-toolbox": {
            "type": "http",
            "url": "https://agenttoolbox.net/api/mcp"
        }
    }
}

Frequently asked questions

What is Agent Toolbox?

Free, no-key MCP server: token estimates, JSON Schema conversion, MCP configs, tool search.

How do I install Agent Toolbox?

It runs as a remote server. In Claude Code: claude mcp add --transport http agent-toolbox 'https://agenttoolbox.net/api/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Agent Toolbox need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains Agent Toolbox?

It is published by johngee518. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.