MCP Validator MCP Validator is a professional validation and compliance testing tool for Model Context Protocol (MCP) servers. It ensures your MCP server’s tools, resources, prompts, and templates are correct, compliant, and production-ready. ✅ Run it directly on Apify – no setup, no infrastructure. ✅ Get structured validation reports you can share with your team or integrate into workflows. ✅ Catch schema errors, protocol issues, and performance bottlenecks before they hit production. --- ## 🚀 Why Choose MCP Validator? If you’re building an MCP server, you need confidence that it: - Correctly exposes tools, resources, prompts, and templates. - Accepts valid inputs and rejects invalid ones with proper errors. - Returns data in the right schema format every time. - Stays reliable and responsive in production environments. 👉 MCP Validator does all this for you automatically. No manual testing. No guesswork. Just clear reports you can trust. --- ## ✨ Key Features - 🔍 Automatic Discovery – connect to your MCP server and fetch all exposed tools, resources, and prompts. - 🛠 Tool Validation – validate input/output schemas, run sample calls, and verify error handling. - 📚 Resource Validation (...upcoming) – test resource reads, pagination, and schema compliance. - 📝 Prompt & Template Checks (...upcoming) – validate placeholders, substitutions, and template structure. - 📊 Structured Reports – detailed JSON/CSV outputs for compliance or CI/CD use. --- The scraped data in this template are page headings but you can easily edit the code to scrape whatever you want from the page. ## 📊 MCP Server Config Example sse server json { "type": "sse", "url": "https://mcp.api.coingecko.com/sse" } mcp server json { "type": "httpStream", "url": "http://mcp.api.coingecko.com" } stdio server json { "type": "stdio", "options": { "command": "python3", "args": ["app.py", "--port", 8080], "env": { "LOG_LEVEL": "info", "API_KEY": "my_secret_key" } } } ## 📊 Auth Setup no auth setup json { "auth": { "type": "none" } } basic auth setup json { "auth": { "type": "basic", "username": "basic_auth_user", "password": "basic_auth_password" } } Bearar api_token auth setup json { "auth": { "type": "token", "token": "huze_api_token" } } ## 📊 Test Tool Calls no schema validation json { "testCases": [ { "name": "get_new_coins_list", "arguments": {}, "actions": { "validate_input_schema": false, "validate_output_schema": false, "match_output_data": false } } ] } input and output schema validation json { "testCases": [ { "name": "get_new_coins_list", "arguments": {}, "actions": { "validate_input_schema": true, "validate_output_schema": true, "match_output_data": false }, "input_schema": {}, "output_schema": {} } ] } output object matcher json { "testCases": [ { "name": "get_new_coins_list", "arguments": {}, "actions": { "validate_input_schema": false, "validate_output_schema": false, "match_output_data": true }, "expected_output": {} } ] } ## 📊 Example Report Output js { metadata: { validator_version: 'v0.1', timestamp: '2025-10-06T14:39:24.164Z', server_type: 'sse', server_url: 'https://mcp.api.coingecko.com/sse', latency: 118, overall_status: 'PASS' }, summary: { total_tools: 46, total_resources: 0, total_prompts: 0, total_templates: 0, warnings: 0, passed: 0, failed: 0 }, lists: { tools: [ 'get_asset_platforms', 'get_id_coins', 'get_list_coins_categories', 'get_new_coins_list', 'get_coins_markets', 'get_coins_top_gainers_losers' ], resources: [], prompts: [], templates: [] }, tools: [ { name: 'translate_text', status: 'PASS', schema_validation: [Object], test_cases: [Object], errors: {} } ], errors: [] } --- ## ⚡ How It Works - Deploy MCP Validator from Apify Marketplace - Provide your MCP server URL and optional test cases. - The validator connects, discovers tools/resources/prompts, and runs validation checks. - Get a structured report (JSON/CSV/text) with pass/fail results. --- ## 💡 Use Cases - ✅ Developers – catch schema errors before deployment. - ✅ QA Teams – validate compliance across staging & production. - ✅ Enterprises – ensure reliable MCP integrations at scale. - ✅ Audits & Compliance – provide proof your server matches MCP spec. --- ## 🛠 Plans & Availability - Flat $10/Month Coffee Bill → Run ad-hoc validations, view JSON/CSV reports. Available exclusively on Apify Marketplace. --- ## 📞 Support Need help or a custom feature? 📧 Contact us at support@mcp-validator.com (or via Apify support).