TimeZest

TimeZest MCP Server

MCP (Model Context Protocol) server for TimeZest scheduling platform. Enables LLM agents to create and manage technician scheduling requests with PSA integration.

Features

• 🎯 Flat tool list - every tool listed and callable immediately
• 📅 Full scheduling lifecycle - create, view, cancel requests
• 🔗 PSA integration - ConnectWise, Autotask, Halo support
• 🌍 IANA timezone handling - explicit timezone management
• 🚀 Dual trigger modes - PSA workflows or booking URLs
• 🛡️ Gateway-ready - stateless per-request design
• 🔍 TQL filtering - TimeZest Query Language support
• ✨ Elicitation support - interactive user prompts
• 📇 Interactive scheduling-request card (MCP Apps) - timezest_scheduling_get renders as a card in MCP Apps hosts; neutral by default, brandable via window.__BRAND__ injection or MCP_BRAND_* env vars

Quick Start

Docker (Recommended)

docker run -it --rm \
  -e TIMEZEST_API_TOKEN=your-api-token \
  ghcr.io/wyre-ai/timezest-mcp:latest

npm

npm install -g @wyre-ai/timezest-mcp
TIMEZEST_API_TOKEN=your-token timezest-mcp

Configuration

Copy .env.example and set the variables below.

Environment Variable	Required	Description
TIMEZEST_API_TOKEN	For stdio and AUTH_MODE=env	TimeZest API token. Gateway mode does not read this.
MCP_TRANSPORT	No	stdio (default) or http
MCP_HTTP_PORT	No	HTTP port. Defaults to 8080.
MCP_HTTP_HOST	No	Bind address when MCP_TRANSPORT=http. Defaults to 127.0.0.1. A configured CONDUIT_S2S_SECRET honors this value. The container image sets 0.0.0.0.
AUTH_MODE	No	gateway (Docker image and Compose default) or env. Gateway mode requires X-Timezest-Api-Token on each /mcp request and never falls back to TIMEZEST_API_TOKEN. env uses that variable only after S2S auth succeeds.
CONDUIT_S2S_SECRET	Yes for HTTP	Service-to-service secret. Generate one with openssl rand -hex 32. The HTTP server logs an error and exits non-zero when this is empty or a known placeholder (changeme, your-s2s-secret, secret, placeholder, and similar public examples). Compose will not start without it. Never commit a real value. The value is never logged.
MCP_ALLOW_INSECURE_DEV	No	Set to exactly 1 only for local development to start HTTP without CONDUIT_S2S_SECRET. The process logs a warning, does not enforce X-Gateway-S2S, and forces the listener onto 127.0.0.1 even if MCP_HTTP_HOST is a wider address. A known placeholder secret is still refused.
LOG_LEVEL	No	Log level: debug, info (default), warn, error

/health stays unauthenticated and does not read credentials. The stdio transport does not use CONDUIT_S2S_SECRET.

HTTP authentication

With MCP_TRANSPORT=http and CONDUIT_S2S_SECRET set, every /mcp request must include X-Gateway-S2S. The header value is:

t=<unix seconds>,v1=<hex hmac-sha256>

v1 is HMAC-SHA256, as lowercase hex, of the exact ASCII string t=<unix seconds> (the same prefix that appears in the header), keyed with CONDUIT_S2S_SECRET. The timestamp must be within 300 seconds of the server clock. A missing or invalid header returns 401. The secret is never written to logs.

t=$(date +%s)
sig=$(printf 't=%s' "$t" | openssl dgst -sha256 -hmac "$CONDUIT_S2S_SECRET" -hex | awk '{print $NF}')
# X-Gateway-S2S: t=$t,v1=$sig

In AUTH_MODE=gateway, /mcp also requires X-Timezest-Api-Token. That header is the only credential source for the request. A missing header returns 401 and the server does not fall back to TIMEZEST_API_TOKEN.

Tools

Every tool below is listed and callable immediately — there is no domain to enter first. The groupings are documentation only.

Upgrading from 2.x? timezest_navigate and timezest_back are gone. Nothing replaces them: call the domain tools directly, because they are all listed up front now. A client that used to call timezest_navigate({domain: "agents"}) and then timezest_agents_list should just call timezest_agents_list — likewise timezest_scheduling_list and the rest. timezest_status still works and now reports the available tools instead of a menu to enter.

Status

• timezest_status - Show connection status and the available tools

Agents

• timezest_agents_list - List individual technicians
• timezest_agents_get - Get agent details

Teams

• timezest_teams_list - List teams (round-robin scheduling)
• timezest_teams_get - Get team details

Appointment Types

• timezest_appointment_types_list - List available service types
• timezest_appointment_types_get - Get appointment type details

Resources

• timezest_resources_list - List all resources (agents + teams)

Scheduling (Core Domain)

• timezest_scheduling_list - List scheduling requests
• timezest_scheduling_get - Get request details
• timezest_scheduling_create_request - Create new request (key tool)
• timezest_scheduling_cancel - Cancel request

Usage Examples

Check What's Available

User: "What can TimeZest do?"
Tools: timezest_status

Create a Scheduling Request

User: "Book a technician for server repair at Customer Corp tomorrow"
Tools: timezest_scheduling_create_request({
  "appointmentTypeId": "repair-onsite",
  "triggerMode": "pod",
  "endUser": {
    "name": "John Doe",
    "company": "Customer Corp",
    "email": "john@customer.com"
  },
  "timeRange": {
    "earliestDate": "2024-02-01",
    "earliestTime": "09:00",
    "latestDate": "2024-02-01", 
    "latestTime": "17:00",
    "timezone": "America/New_York"
  },
  "associatedEntities": [
    {"type": "connectwise", "id": "12345", "number": "T20240001"}
  ]
})

PSA Integration

Link scheduling requests to PSA tickets:

{
  "associatedEntities": [
    {"type": "connectwise", "id": "12345", "number": "T20240001"},
    {"type": "autotask", "id": "67890"},
    {"type": "halo", "id": "11111"}
  ]
}

Trigger Modes

• pod: Fires the configured PSA workflow (creates calendar entries, updates tickets)
• generate_url: Returns a shareable booking URL for customers

TQL Filtering

TimeZest Query Language examples:

# Active agents in IT department
filter: "active:true AND department:\"IT Support\""

# Recent scheduling requests
filter: "createdAt:>=2024-01-01 AND status:pending"

# Specific customer requests  
filter: "endUser.company:\"Important Customer\""

Timezone Handling

CRITICAL: Always specify IANA timezones explicitly. TimeZest interprets scheduling windows in the specified timezone.

{
  "timeRange": {
    "earliestDate": "2024-02-01",
    "earliestTime": "09:00", 
    "timezone": "America/New_York"  // ✅ Required
  }
}

Development

Local Setup

# Clone and install
git clone https://github.com/WYRE-AI/timezest-mcp.git
cd timezest-mcp
npm install

# Development with file dependency (replace before publish)
# Edit package.json: "@wyre-technology/node-timezest": "file:../node-timezest"

# Build and test
npm run build
npm test

# Run locally
TIMEZEST_API_TOKEN=your-token npm run dev

Docker Development

The image sets AUTH_MODE=gateway and MCP_HTTP_HOST=0.0.0.0. Stdio (the image default until MCP_TRANSPORT=http) still reads TIMEZEST_API_TOKEN and does not use CONDUIT_S2S_SECRET.

# Build image
docker build -t timezest-mcp --build-arg NODE_AUTH_TOKEN=$GITHUB_TOKEN .

# Stdio
docker run -it --rm \
  -e TIMEZEST_API_TOKEN=your-token \
  -e LOG_LEVEL=debug \
  timezest-mcp

HTTP gateway mode publishes the port on loopback and passes the S2S secret. The TimeZest token arrives on each request as X-Timezest-Api-Token; it is not read from the environment. Generate the secret with openssl rand -hex 32 — example placeholders such as changeme or your-s2s-secret are rejected.

export CONDUIT_S2S_SECRET="$(openssl rand -hex 32)"
docker run --rm \
  -e MCP_TRANSPORT=http \
  -e CONDUIT_S2S_SECRET="$CONDUIT_S2S_SECRET" \
  -p 127.0.0.1:8080:8080 \
  timezest-mcp

Compose refuses to start when CONDUIT_S2S_SECRET is unset. The gateway service sets AUTH_MODE=gateway and does not inject TIMEZEST_API_TOKEN or env_file:

CONDUIT_S2S_SECRET="$CONDUIT_S2S_SECRET" docker compose up

Single-tenant HTTP (AUTH_MODE=env) still requires the S2S secret, then uses TIMEZEST_API_TOKEN:

docker run --rm \
  -e MCP_TRANSPORT=http \
  -e CONDUIT_S2S_SECRET="$CONDUIT_S2S_SECRET" \
  -e AUTH_MODE=env \
  -e TIMEZEST_API_TOKEN=your-token \
  -p 127.0.0.1:8080:8080 \
  timezest-mcp

Local HTTP without a secret is development-only. It binds 127.0.0.1 only and logs a warning. A non-loopback MCP_HTTP_HOST is overridden:

MCP_TRANSPORT=http MCP_ALLOW_INSECURE_DEV=1 npm run dev

MCP Integration

Claude Desktop

Add to your MCP settings:

{
  "mcpServers": {
    "timezest": {
      "command": "npx",
      "args": ["@wyre-ai/timezest-mcp"],
      "env": {
        "TIMEZEST_API_TOKEN": "your-api-token"
      }
    }
  }
}

WYRE Gateway

The server is designed for the WYRE MCP Gateway with:

• Per-request server instances (stateless)
• X-Gateway-S2S signing on every /mcp request (see HTTP authentication)
• X-Timezest-Api-Token credential injection in gateway mode, with no fallback to TIMEZEST_API_TOKEN
• Structured error responses
• Flat tool list (no navigation state to enter)

API Coverage

TimeZest API	Coverage	Notes
Agents	✅ List, Get	Individual technicians
Teams	✅ List, Get	Round-robin scheduling
Appointment Types	✅ List, Get	Service type definitions
Resources	✅ List	Unified agents + teams
Scheduling Requests	✅ CRUD	Core scheduling functionality
TQL Filtering	✅ All endpoints	TimeZest Query Language
PSA Integration	✅ All systems	ConnectWise, Autotask, Halo
Webhooks	❌ N/A	TimeZest doesn't provide webhooks

Contributing

See CONTRIBUTING.md for development guidelines.

License

Apache 2.0 - see LICENSE file for details.

Links

• TimeZest API Documentation
• TimeZest Help Center
• MCP Protocol
• WYRE Technology