Bring Site Safety
to Claude Desktop
Learn how to connect SignOnSite to Claude Desktop and start using 12 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the 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.
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.
How it works
1. Subscribe to this server
2. Enter your SignOnSite API Token from your dashboard
3. Start managing your site safety from Claude, Cursor, or any MCP-compatible client
No more manual sign-on sheets or chasing safety certificates. Your AI acts as a dedicated safety officer or site manager.
Who is this for?
- Site Managers & Foremen — quickly retrieve worker attendance and monitor safety induction statuses without switching apps.
- Safety Officers — automate the retrieval of site permits and track compliance credentials via natural conversation.
- Operations Teams — streamline the retrieval of site-user metadata and monitor multi-site activities directly within the chat.
Built-in capabilities (12)
Enrol a new worker
Get details for a specific site
Get details for a specific worker
List all associated companies
List all construction sites
List all site workers
Query completed safety forms
g., Hot Works, Confined Space) for your projects. Query safety permits
Supports filtering by site and date. Query worker attendance records
Check worker licenses and inductions
Record a manual sign-off for a worker
Record a manual sign-on for a worker
Why Claude Desktop?
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.
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Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available
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Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface
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Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions
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Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network
SignOnSite in Claude Desktop
SignOnSite and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect SignOnSite to Claude Desktop through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for SignOnSite in Claude Desktop
The SignOnSite 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. All 12 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Claude Desktop only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* 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
How Vinkius secures
SignOnSite for Claude Desktop
Every tool call from Claude Desktop to the SignOnSite MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
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.
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.
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.