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mcporter

mcporter is a CLI tool for discovering, configuring, and calling MCP (Model Context Protocol) servers and their tools directly from the terminal. Use it to list available servers, authenticate with OAuth, call tools with key-value arguments, manage server configurations, and generate CLI wrappers or TypeScript types for MCP servers discovered locally or ad-hoc via HTTP or stdio connections.

View source Repository: hermes-agent

Install in Claude Code

Copy

git clone --depth 1 https://github.com/NousResearch/hermes-agent /tmp/mcporter && cp -r /tmp/mcporter/optional-skills/mcp/mcporter ~/.claude/skills/mcporter

Then start a new Claude Code session; the skill loads automatically.

Definition

SKILL.md

# mcporter

Use `mcporter` to discover, call, and manage [MCP (Model Context Protocol)](https://modelcontextprotocol.io/) servers and tools directly from the terminal.

## Prerequisites

Requires Node.js:
```bash
# No install needed (runs via npx)
npx mcporter list

# Or install globally
npm install -g mcporter
```

## Quick Start

```bash
# List MCP servers already configured on this machine
mcporter list

# List tools for a specific server with schema details
mcporter list <server> --schema

# Call a tool
mcporter call <server.tool> key=value
```

## Discovering MCP Servers

mcporter auto-discovers servers configured by other MCP clients (Claude Desktop, Cursor, etc.) on the machine. To find new servers to use, browse registries like [mcpfinder.dev](https://mcpfinder.dev) or [mcp.so](https://mcp.so), then connect ad-hoc:

```bash
# Connect to any MCP server by URL (no config needed)
mcporter list --http-url https://some-mcp-server.com --name my_server

# Or run a stdio server on the fly
mcporter list --stdio "npx -y @modelcontextprotocol/server-filesystem" --name fs
```

## Calling Tools

```bash
# Key=value syntax
mcporter call linear.list_issues team=ENG limit:5

# Function syntax
mcporter call "linear.create_issue(title: \"Bug fix needed\")"

# Ad-hoc HTTP server (no config needed)
mcporter call https://api.example.com/mcp.fetch url=https://example.com

# Ad-hoc stdio server
mcporter call --stdio "bun run ./server.ts" scrape url=https://example.com

# JSON payload
mcporter call <server.tool> --args '{"limit": 5}'

# Machine-readable output (recommended for Hermes)
mcporter call <server.tool> key=value --output json
```

## Auth and Config

```bash
# OAuth login for a server
mcporter auth <server | url> [--reset]

# Manage config
mcporter config list
mcporter config get <key>
mcporter config add <server>
mcporter config remove <server>
mcporter config import <path>
```

Config file location: `./config/mcporter.json` (override with `--config`).

## Daemon

For persistent server connections:
```bash
mcporter daemon start
mcporter daemon status
mcporter daemon stop
mcporter daemon restart
```

## Code Generation

```bash
# Generate a CLI wrapper for an MCP server
mcporter generate-cli --server <name>
mcporter generate-cli --command <url>

# Inspect a generated CLI
mcporter inspect-cli <path> [--json]

# Generate TypeScript types/client
mcporter emit-ts <server> --mode client
mcporter emit-ts <server> --mode types
```

## Notes

- Use `--output json` for structured output that's easier to parse
- Ad-hoc servers (HTTP URL or `--stdio` command) work without any config — useful for one-off calls
- OAuth auth may require interactive browser flow — use `terminal(command="mcporter auth <server>", pty=true)` if needed