MCP Manifest Validator

Paste your MCPServer manifest JSON and click Validate. No tracking. Runs against required fields now; JSON Schema in Phase 2.

Quick Tips

Host your manifest at /.well-known/mcp.json on your domain root
Minimum required fields: @context, @type, name, version, capabilities
See Known-Good Manifests for copy-paste templates
Read the full MCP v2025-03-26 Specification

What Gets Validated

Required Fields (MCP v2025-03-26)

@context - Must be "https://modelcontextprotocol.io/schema/2025-03-26"
@type - Must be "MCPServer"
name - Non-empty string (your server name)
version - Valid semver (e.g., 1.0.0)
capabilities - Object with at least one capability (resources, tools, or prompts)

Optional But Recommended

description - Human-readable description
author - Server author/maintainer
homepage - Server homepage URL
license - SPDX license identifier