harmony-mcp

MCP (Model Context Protocol) server for Harmony. Enables AI coding agents (Claude Code, OpenAI Codex, Cursor, Windsurf) to interact with your Harmony boards.

Features

• 29 MCP Tools for full board control (cards, columns, labels, subtasks, links)
• Card Linking - create relationships between cards (blocks, relates_to, duplicates, is_part_of)
• Prompt Builder - generate AI-ready prompts from cards with context
• Agent Session Tracking - track work progress with timer badges
• Auto-Assignment - automatically assign cards to you when starting agent sessions
• Multi-Agent Support - works with Claude Code, Codex, Cursor, Windsurf
• Smart Setup - one command configures everything
• Natural Language Processing via voice-nlu edge function
• API Key Authentication - no database credentials required

Quick Start

1. Get an API Key

1. Log into Harmony
2. Go to API Keys
3. Click "Generate New Key"
4. Copy the key (starts with hmy_)

2. Run Setup

npx harmony-mcp setup

The smart setup wizard will:

• Validate your API key
• Detect installed AI agents (Claude Code, Cursor, Windsurf, Codex)
• Install skills globally (recommended) or locally
• Let you select your workspace and project

That's it! You're ready to use Harmony with your AI agent.

Adding to a New Project

Just run setup again in the new project directory:

cd my-new-project
npx harmony-mcp setup

It detects your existing configuration and only asks for the project context.

CLI Commands

# Setup (recommended)
npx harmony-mcp setup              # Smart setup wizard

# Setup with flags (non-interactive)
npx harmony-mcp setup --api-key KEY --global --workspace ID --project ID

# Status and management
npx harmony-mcp status             # Show current configuration
npx harmony-mcp reset              # Clear all configuration

# Server (called by agents automatically)
npx harmony-mcp serve              # Start MCP server

Setup Options

Supported AI Agents

Card Workflow

When you start working on a card (e.g., /hmy #42):

1. Find - Locates the card by short ID, UUID, or name
2. Move - Moves the card to "In Progress" column
3. Label - Adds the "agent" label to indicate AI is working
4. Assign - Auto-assigns the card to you (if email is configured)
5. Track - Starts a session timer visible in the UI
6. Implement - Work on the task with progress updates
7. Complete - Move to "Review" when done

Available Tools

Card Operations

• harmony_create_card - Create a new card
• harmony_update_card - Update card properties
• harmony_move_card - Move card to different column
• harmony_delete_card - Delete a card
• harmony_assign_card - Assign to team member
• harmony_search_cards - Search by title/description
• harmony_get_card - Get card details by UUID
• harmony_get_card_by_short_id - Get card by short ID (e.g., #42)

Card Link Operations

• harmony_add_link_to_card - Create a link between two cards
• harmony_remove_link_from_card - Remove a link between cards
• harmony_get_card_links - Get all links for a card

Link Types:

Column Operations

• harmony_create_column - Create new column
• harmony_update_column - Update column properties
• harmony_delete_column - Delete column

Label Operations

• harmony_create_label - Create new label
• harmony_add_label_to_card - Add label to card
• harmony_remove_label_from_card - Remove label

Subtask Operations

• harmony_create_subtask - Create subtask
• harmony_toggle_subtask - Toggle completion
• harmony_delete_subtask - Delete subtask

Context Operations

• harmony_list_workspaces - List workspaces
• harmony_list_projects - List projects
• harmony_get_board - Get full board state
• harmony_get_workspace_members - Get team members
• harmony_set_workspace_context - Set active workspace
• harmony_set_project_context - Set active project
• harmony_get_context - Get current context

Natural Language

• harmony_process_command - Process natural language commands

Agent Session Tracking

• harmony_start_agent_session - Start tracking work on a card
• harmony_update_agent_progress - Update progress, status, blockers
• harmony_end_agent_session - End session (completed/paused)
• harmony_get_agent_session - Get current session state

Prompt Generation

• harmony_generate_prompt - Generate an AI-ready prompt from a card

Parameters:

Variants:

• analysis - Understand the problem and create a plan
• draft - Design a solution approach
• execute - Full implementation (default)

The prompt builder automatically infers the agent role based on card labels (bug, feature, design, etc.) and includes relevant context from linked cards.

Direct API Access

You can also call the Harmony API directly from any HTTP client:

curl -X GET "https://gethmy.com/api/v1/workspaces" \
  -H "X-API-Key: hmy_your_key_here"

API Endpoints

Configuration

Global Configuration

Stored in ~/.harmony-mcp/config.json:

{
  "apiKey": "hmy_...",
  "apiUrl": "https://gethmy.com/api",
  "userEmail": "you@example.com",
  "activeWorkspaceId": null,
  "activeProjectId": null
}

Local Project Configuration

Stored in .harmony-mcp.json in your project root:

{
  "workspaceId": "uuid-here",
  "projectId": "uuid-here"
}

Priority: Local config overrides global config for workspace and project context.

Security: API key is never stored locally (only in global config) to prevent accidental commits.

Auto-Assignment

When your email is configured during setup, cards are automatically assigned to you when you start an agent session (e.g., via /hmy #42). This helps track who is working on what.

To update your email:

npx harmony-mcp setup --email you@example.com

The email must match your Harmony account email to work correctly.

Viewing Configuration

npx harmony-mcp status

Example output:

Status: Configured

API:
  Key: hmy_abc1...
  URL: https://gethmy.com/api
  Email: y***@example.com

Skills:
  Installed: Yes (global)
    ~/.agents/skills/hmy/SKILL.md

Context:
  Local config: .harmony-mcp.json
    Workspace: my-team-id
    Project: my-project-id
  Global config: ~/.harmony-mcp/config.json
    Workspace: (not set)
    Project: (not set)

  Active (effective):
    Workspace: my-team-id ← local
    Project: my-project-id ← local

Recommended .gitignore

Add this to prevent accidentally committing local config:

.harmony-mcp.json

Architecture

┌─────────────────┐      MCP Protocol       ┌──────────────────┐
│  Claude Code    │ ───────────────────────▶│  harmony-mcp     │
│  Cursor         │                         │  (local server)  │
│  Windsurf       │                         └────────┬─────────┘
│  Codex          │                                  │
└─────────────────┘                                  │ API Key Auth
                                                     ▼
                                          ┌──────────────────┐
                                          │  Harmony API     │
                                          │  (Edge Function) │
                                          └────────┬─────────┘
                                                   │
                                                   ▼
                                          ┌──────────────────┐
                                          │    Database      │
                                          │    (Supabase)    │
                                          └──────────────────┘

Key Benefits:

• No database credentials needed - just a Harmony API key
• Any Harmony user can use it
• Business logic stays in Harmony
• Centralized security and rate limiting