mcpbin

# mcpbin MCP testing server built with FastMCP. Provides tools, resources, and prompts for testing MCP client implementations. ## Installation ```bash uv sync ``` ## Usage ### Claude Code Add the hosted mcpbin server to Claude Code: ```bash claude mcp add --scope local --transport http mcpbin https://mcpbin.fastmcp.app/mcp ``` ### Local Development ```bash make dev ``` ## Tools ### Echo & Context - `echo` - Echo back input data - `echo_context` - Return request context info ### Errors - `status_error` - Raise error with message/code - `random_error` - Random success/failure ### Timing - `delay` - Wait for specified duration ### Data - `generate_uuid` - Generate UUID v4 - `timestamp` - Get current timestamp - `base64_encode` / `base64_decode` - Base64 encoding ### Sampling - `sample_echo` - Basic LLM sampling - `sample_with_system` - Sampling with system prompt - `sample_with_params` - Sampling with temperature/max_tokens - `sample_multi_turn` - Multi-turn conversation ### Elicitations - `elicit_string` - Request string input - `elicit_number` - Request integer input - `elicit_boolean` - Request boolean input - `elicit_choice` - Request choice from options - `elicit_structured` - Request structured data ## Resources - `resource://echo/{message}` - Echo message - `resource://bytes/{size}` - Random bytes - `resource://json/sample` - Sample JSON data ## Development ```bash make test # Run tests make lint # Check code style make format # Format code ```