Can my AI automatically find which workers are currently signed onto a specific construction site?

Yes! Use the `query_attendance` tool. Provide the Site ID, and your agent will return the list of currently present workers and their sign-on times in seconds.

How do I check if a specific worker has completed their safety induction for a site?

Simply ask the agent to run the `get_worker` or `query_credentials` action. It will retrieve the enrollment status and safety credentials for that individual.

How do I find my SignOnSite API Token?

Log in to your SignOnSite web dashboard, navigate to the **Settings** > **API** section, and you will find your unique Company API Token there.

INSTANT PLUG AND PLAY

SignOnSite MCP Server for Claude DesktopGive Claude Desktop instant access to 12 tools to Enrol Worker, Get Site Details, Get Worker Details, and more

Name: SignOnSite
Availability: InStock
Author: Vinkius

Built by Vinkius GDPR 12 Tools IDE

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Use with Your AI Agent

Ask AI about this App Connector for Claude Desktop

Open in ChatGPT Open in Claude Open in Perplexity

The SignOnSite app connector for Claude Desktop is a standout in the Industry Titans category — giving your AI agent 12 tools to work with, ready to go from day one.

Vinkius delivers Streamable HTTP and SSE to any MCP client

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install SignOnSite and 3,400+ MCP Servers from a single visual interface.

Download Free Open SourceNo signup required

Classic Setup·json

{
  "mcpServers": {
    "signonsite": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About SignOnSite MCP Server

Connect your SignOnSite account to any AI agent and take full control of your construction site safety and attendance orchestration through natural conversation. SignOnSite provides a premier platform for managing worker sign-ons, safety inductions, and site attendance, and this integration allows you to retrieve site metadata, monitor worker enrollments, and track safety briefings directly from your chat interface.

Claude Desktop is the definitive way to connect SignOnSite to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 12 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

What you can do

Worker & Site Orchestration — List all active sites and retrieve detailed worker profile metadata, including enrollment status and contact info programmatically.
Attendance Lifecycle Management — Monitor real-time worker sign-ons and sign-offs to ensure your site attendance is always accurate directly from the AI interface.
Safety & Permit Control — Access and monitor site permits and safety briefings to ensure your workplace compliance is always synchronized via natural language.
Enrolment & Credential Intelligence — Access worker credentials and manage enrolment flows to keep your compliance records up to date.
Operational Monitoring — Track site activities and manage company metadata to ensure your safety orchestration is always optimized using simple AI commands.

The SignOnSite MCP Server exposes 12 tools through the Vinkius. Connect it to Claude Desktop in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 12 SignOnSite tools available for Claude Desktop

When Claude Desktop connects to SignOnSite through Vinkius, your AI agent gets direct access to every tool listed below — spanning site-safety, attendance-tracking, safety-inductions, and more. Every call is secured with network, filesystem, subprocess, and code evaluation entitlements inside a sandboxed runtime. Beyond a simple connection, you get a full AI Gateway with real-time visibility into agent activity, enterprise governance, and optimized token usage.

enrol_worker

Enrol a new worker

get_site_details

Get details for a specific site

get_worker_details

Get details for a specific worker

list_companies

List all associated companies

list_sites

List all construction sites

list_workers

List all site workers

query_form_submissions

Query completed safety forms

query_permits

g., Hot Works, Confined Space) for your projects. Query safety permits

query_site_attendance

Supports filtering by site and date. Query worker attendance records

query_worker_credentials

Check worker licenses and inductions

sign_off_worker

Record a manual sign-off for a worker

sign_on_worker

Record a manual sign-on for a worker

Connect SignOnSite to Claude Desktop via MCP

Follow these steps to wire SignOnSite into Claude Desktop. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using SignOnSite

Look for the 🔌 icon in the chat. your 12 tools are now available

Why Use Claude Desktop with the SignOnSite MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with SignOnSite through the Model Context Protocol.

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

SignOnSite + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the SignOnSite MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

Example Prompts for SignOnSite in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with SignOnSite immediately.

"List all workers currently signed onto the 'Skyline Apartments' site."

"Show me any active permits for site ID 12345."

"Check if worker 'Robert Smith' is enrolled for the 'City Hospital' site."

Troubleshooting SignOnSite MCP Server with Claude Desktop

Common issues when connecting SignOnSite to Claude Desktop through the Vinkius, and how to resolve them.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

SignOnSite + Claude Desktop FAQ

Common questions about integrating SignOnSite MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.