mcp-cli
Interface for MCP (Model Context Protocol) servers via CLI. Use when you need to interact with external tools, APIs, or data sources through MCP servers.
What this skill does
# MCP-CLI
Access MCP servers through the command line. MCP enables interaction with external systems like GitHub, filesystems, databases, and APIs.
## Prerequisites
Install mcp-cli:
```bash
bun install -g https://github.com/philschmid/mcp-cli
```
## Configuration
Create `mcp_servers.json` in current directory or `~/.config/mcp/`:
```json
{
"mcpServers": {
"filesystem": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-filesystem", "."]
},
"deepwiki": {
"url": "https://mcp.deepwiki.com/mcp"
}
}
}
```
- **stdio servers**: Use `command` + `args`
- **HTTP servers**: Use `url`
## Commands
| Command | Output |
|---------|--------|
| `mcp-cli` | List all servers and tool names |
| `mcp-cli <server>` | Show tools with parameters |
| `mcp-cli <server>/<tool>` | Get tool JSON schema |
| `mcp-cli <server>/<tool> '<json>'` | Call tool with arguments |
| `mcp-cli grep "<glob>"` | Search tools by name |
**Add `-d` to include descriptions** (e.g., `mcp-cli filesystem -d`)
## Workflow
1. **Discover**: `mcp-cli` - see available servers and tools
2. **Explore**: `mcp-cli <server>` - see tools with parameters
3. **Inspect**: `mcp-cli <server>/<tool>` - get full JSON input schema
4. **Execute**: `mcp-cli <server>/<tool> '<json>'` - run with arguments
## Examples
```bash
# List all servers and tool names
mcp-cli
# See all tools with parameters
mcp-cli filesystem
# With descriptions (more verbose)
mcp-cli filesystem -d
# Get JSON schema for specific tool
mcp-cli filesystem/read_file
# Call the tool
mcp-cli filesystem/read_file '{"path": "./README.md"}'
# Search for tools
mcp-cli grep "*file*"
# JSON output for parsing
mcp-cli filesystem/read_file '{"path": "./README.md"}' --json
# Complex JSON with quotes (use heredoc or stdin)
mcp-cli server/tool <<EOF
{"content": "Text with 'quotes' inside"}
EOF
# Or pipe from a file/command
cat args.json | mcp-cli server/tool
# Find all TypeScript files and read the first one
mcp-cli filesystem/search_files '{"path": "src/", "pattern": "*.ts"}' --json | jq -r '.content[0].text' | head -1 | xargs -I {} sh -c 'mcp-cli filesystem/read_file "{\"path\": \"{}\"}"'
```
## Options
| Flag | Purpose |
|------|---------|
| `-j, --json` | JSON output for scripting |
| `-r, --raw` | Raw text content |
| `-d` | Include descriptions |
## Exit Codes
- `0`: Success
- `1`: Client error (bad args, missing config)
- `2`: Server error (tool failed)
- `3`: Network error
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