What's Changed

Major Features

• Add plugin subsystem for HTTP request/response processing by @peteski22 in #209
  • Complete plugin architecture allowing third-party plugins to intercept and process HTTP requests/responses
  • Category-based organization: authentication, authorization, rate limiting, validation, content transformation, audit, and observability
  • Flow control (request, response, or both) with plugin lifecycle management and gRPC-based communication
• Add plugin configuration file support by @peteski22 in #204
• Add automated OpenAPI specification generation for hosted documentation by @peteski22 in #208
  • Programmatic OpenAPI YAML export maintaining 1:1 mapping between API code and documentation
  • Integrated into CI via make docs-api for automatic documentation updates on every release
• Add Docker volume mount support by @peteski22 in #201

Bug Fixes & Reliability

• Fix daemon shutdown deadlock and improve MCP transport observability by @peteski22 in #206
  • Resolved hang during daemon shutdown (CTRL+C) when MCP server pings stuck in uninterruptible I/O
  • Upgraded mcp-go from v0.39.1 to v0.41.1 with large message handling fixes
• Fix SIGHUP reload coordination race condition by @peteski22 in #189
• Fix config export for positional arguments by @peteski22 in #188
• Update filesystem and fix redis by @peteski22 in #194

Development & Infrastructure

• Add third party license distribution by @besaleli in #207
• Makefile: Adding linting (runs before tests and build) by @peteski22 in #193
• mozilla-ai schema: ensure 'position' is specified if 'argument_positional' is used by @peteski22 in #192

Full Changelog: v0.0.9...v0.1.0

What's Changed

🚀 Features

• Added support for dockerized MCP servers by @agpituk in #185
• Add MCP prompts API support to REST endpoints by @peteski22 in #186
• Add MCP resource API support to REST endpoints by @peteski22 in #183

🐛 Bug Fixes & Reliability

• Fix registry data corruption and normalize server ID handling by @peteski22 in #184
• Fix cross-server environment variable and argument filtering bypass by @peteski22 in #187

🔧 Development & Infrastructure

• Migrate from deprecated dockers to dockers_v2 in GoReleaser config by @peteski22 in #180

Full Changelog: v0.0.8...v0.0.9

What's Changed

🚀 Major Features

• Hot Reload Support for MCP Server Configurations by @peteski22 in #152
• Introduce the inspector command by @michalismeng in #157

🛠️ Configuration Management

• Add mcpd config tools list command with text/JSON/YAML output formats by @peteski22 in #170
• Add --all flag to mcpd config tools list by @peteski22 in #171
• Add mcpd config tools set command with registry validation by @peteski22 in #176
• Fix positional args bug in config args set command by adding --merge-flags by @peteski22 in #172
• Normalize API output to match stored configuration format (.mcpd.toml) by @peteski22 in #178

🐛 Bug Fixes & Reliability

• Prevent servers without tools from being added/running by @peteski22 in #173
• Ensure we explicitly map untracked server health errors by @peteski22 in #161
• Add context cancellation checks to prevent shutdown hangs by @peteski22 in #175

📚 Registry & Documentation

• Add manual and automated validation of the Mozilla AI registry JSON by @peteski22 in #160
• Added zim and SearXNG MCPs by @aittalam in #159
• Improve README formatting and layout by @hasangzl in #162
• Improve contribution guidelines by @ividal in #165

🔧 Development & Infrastructure

• Centralize file and directory permission mode usage by @peteski22 in #151
• Bump dependencies by @peteski22 in #167
• Remove homebrew formula conflicts (deprecated) from GoReleaser by @peteski22 in #166

New Contributors

• @hasangzl made their first contribution in #162
• @ividal made their first contribution in #165
• @michalismeng made their first contribution in #157

Full Changelog: v0.0.7...v0.0.8

What's Changed

• Add case-insensitive handling for server and tool names by @peteski22 in #148
• Implement registry caching system with configurable options by @peteski22 in #149

Full Changelog: v0.0.6...v0.0.7

What's Changed

• mozilla-ai registry update tools by @peteski22 in #147

Fixes a bug in Mozilla AI registry JSON that incorrectly identified tools for: Jira, Slack and Notion MCP servers.

Full Changelog: v0.0.5...v0.0.6

What's Changed

New Features

• Configuration System (#142): Added comprehensive configuration management for mcpd daemon
  • New mcpd config daemon command with subcommands: get, set, remove, list, validate
  • Support for dot-path configuration keys
  • Configuration validation system
  • Extensive documentation for daemon configuration
• CORS Support (#142): Added Cross-Origin Resource Sharing (CORS) support for the API server
  • Configurable CORS settings
  • API shutdown timeout configuration options

Improvements

• Environment Variables (#144): Centralized environment variable expansion to runtime config loading point for better consistency
• Legacy MCPM Registry (#143): Enhanced MCPM provider with missing fields (Publisher/Author and Homepage) for better package information
• Documentation (#141): Added installation page link to main documentation index

This release significantly enhances mcpd with a robust configuration system and improved architectural patterns while maintaining backward compatibility.

New Contributors

• @aittalam made their first contribution in #142 🎉

Full Changelog: v0.0.4...v0.0.5

What's Changed

• Update documentation (added: installation) by @peteski22 in #136
• Improve handling for closing clients (and logging) on shutdown by @peteski22 in #137
• Fix positional arguments issue with config by @peteski22 in #138
• Docs Add Apple quarantine message by @peteski22 in #139
• Improved registry handling and updated terminology from "packages" to "servers" by @peteski22 in #140

Full Changelog: v0.0.3...v0.0.4

🎯 Highlights

• mozilla-ai Registry Provider: Added embedded registry data for Mozilla AI tools
• Enhanced Argument Handling: Fixed bugs and added support for positional arguments
• Deprecation Support: New --allow-deprecated flag for mcpd add command
• Major Refactoring: Improved package model extensibility and codebase organization

✨ Features

• Added Mozilla AI registry provider with embedded data (#132)
• Added --allow-deprecated flag to mcpd add command (#134)
• Support for positional arguments in server configurations (#127)

🔧 Improvements

• Refactored packages.Package to packages.Server for clarity (#133)
• Restructured package model for better extensibility (#131)
• General codebase refactoring and organization (#130)
• Improved test structure with helper functions (#135)

🐛 Bug Fixes

• Fixed argument parsing issues (#127)

📦 Distribution

• Docker release automation (#94)
• Homebrew installation support (#119, #120, #124)

📚 Documentation

• Updated README with new logo (#122, #126)
• Fixed tutorial curl example (#126)
• Updated tutorial to use Homebrew installation (#124)
• Enhanced deployment workflows (#121)

Full Changelog: v0.0.2...v0.0.3

❗Breaking Changes

1. API JSON Response Format: Standardized JSON property names to camelCase (#114)

   • Health API:
     • last_checked → lastChecked
     • last_successful → lastSuccessful
   • Configuration Fields:
     • required_env → requiredEnv
     • required_args → requiredArgs
     • required_args_bool → requiredArgsBool
     • display_name → displayName
     • is_official → isOfficial
   • Tool Schema Fields:
     • input_schema → inputSchema
     • output_schema → outputSchema
     • read_only_hint → readOnlyHint
     • destructive_hint → destructiveHint
     • idempotent_hint → idempotentHint
     • open_world_hint → openWorldHint
   • Runtime Usage Fields:
     • actual_name → actualName
   • HTTP API clients will need to update field mappings

2. Configuration Structure: Split required_args into required_args (value arguments) and required_args_bool (boolean flags) for more granular argument validation (#105)

   • Existing .mcpd.toml files using required_args may need to be updated if they contained boolean required arguments
   • Boolean flags (like --verbose) should now be specified under required_args_bool
   • Value arguments (like --config=value) remain under required_args

3. Export Template Variables: Simplified template variable naming by removing ARG suffix from command-line arguments.

   • Both environment variables and arguments now use the unified format MCPD__{SERVER_NAME}__{VARIABLE_NAME}.
   • Users with existing CI/CD pipelines may need to rename their environment variables (e.g., MCPD__SERVER__ARG__TOKEN → MCPD__SERVER__TOKEN) if they recreate files from export

New Features

• Complete Config Export: Fully implemented mcpd config export command (#106)

  • Now processes both config and runtime files (was runtime-only before)
  • Generates portable execution context (e.g. secrets.prod.toml) with templated variables
  • Creates environment contract (e.g. .env) with placeholder mappings for CI/CD systems
  • Supports consistent placeholder naming: MCPD__{SERVER_NAME}__{VAR_NAME}
  • Handles server names with hyphens (converts to underscores in placeholders)

• Format Support for Add Command: Added --format flag support to mcpd add (#102)

  • Consistent output formatting across commands (text, JSON, YAML)
  • Improved package addition workflow with structured output options

• Enhanced Runtime Support: Refactored runtime specifications with security fixes for NPX(#104)

• Homebrew Distribution: Added Homebrew tap support for easy installation (#115)

  • Users can now install via: brew tap mozilla-ai/mcpd && brew install mcpd
  • Includes automatic shell completion installation (bash, zsh)

Improvements

• Development Experience: Include log file path in development banner when configured (#109)
• Code Quality: Added comprehensive golangci-lint configuration with automated formatting (#114)
• Documentation: Updated README and contributing guidelines (#99)
• License: Fixed copyright attribution (#100)
• CI/CD: Improved documentation deployment process (#95)

Technical Details

• Enhanced argument validation with separate handling for value and boolean arguments
• Comprehensive test coverage for export functionality
• Improved error handling and validation across commands
• Better placeholder name consistency in configuration exports

Full Changelog: v0.0.1...v0.0.2

What's Changed

Initial release of mcpd, for information on the project and how to use it, please see our docs page.

New Contributors

• @peteski22 made their first contribution in #3
• @agpituk made their first contribution in #56
• @Kostis-S-Z made their first contribution in #71

Full Changelog: https://github.com/mozilla-ai/mcpd/commits/v0.0.1