Research Planning Permission Before You Build
Check planning constraints, permitted development rights, and existing permit history for any address before submitting an application.
Verify a Contractor Before Hiring
Check a contractor's registration, accreditations, and trading history before signing any contract or making a deposit.
Quick answer: Use the Construction Manager tool through ToolRouter to verify a contractor before hiring directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolRogue traders and insolvent contractors are among the most costly risks in any building project. Homeowners lose thousands every year to builders who take deposits and disappear, or who complete work that fails inspection because they were never qualified to do it in the first place.
Construction Manager lets you verify any company's registration status, trading history, and relevant accreditations before signing anything. You can also find vetted local tradespeople for specific tasks rather than starting from scratch with a Google search.
Homeowners use this before paying any deposit, project managers use it to vet subcontractors before bringing them on site, and commercial developers use it to run quick checks during the tender process.
How to verify a contractor before hiring with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Claude is ideal when contractor verification is part of a broader risk assessment. You can run the checks and get a clear opinion on whether any red flags should affect your decision — not just a raw data dump.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
How to verify a contractor before hiring with Claude
Once connected (see setup above), use the Construction Manager tool:
- Give Claude the contractor's company name, registration number if you have it, and the type of work they are being hired for.
- Ask Claude to run `verify_company` via the construction-manager tool.
- Have Claude review the results and flag any concerning indicators — recent incorporation, director changes, dissolved related companies.
- If you do not yet have a contractor, ask Claude to run `find_local_tradesmen` to find vetted options for the trade you need.
- Use Claude's assessment to make a confident hire or avoid a risky one.
Example prompt for Claude
Try this with Claude using the Construction Manager tool
Use construction-manager to verify BuildRight Ltd, company number 12345678, who I am considering hiring for a £40,000 extension. Check their registration status, trading history, and any red flags. Tell me whether there is anything in the data that should give me pause.
Tips for Claude
- Always check the company number, not just the trading name — contractors sometimes operate similar names across multiple entities.
- Ask Claude to flag recent incorporation dates — a company less than two years old is a higher risk on a large job.
- Ask for accreditation verification relevant to the work type — gas safe, NICEIC, FMB — not just company registration.
ChatGPT is useful when contractor verification needs to be documented formally. Pull the checks and produce a due diligence report to file alongside the contract.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
How to verify a contractor before hiring with ChatGPT
Once connected (see setup above), use the Construction Manager tool:
- Provide the contractor's details and the scope of work they are being hired for.
- Run `verify_company` via construction-manager.
- Ask ChatGPT to produce a contractor due diligence report summarising the key findings.
- File the report alongside the contract as a risk management record.
Example prompt for ChatGPT
Try this with ChatGPT using the Construction Manager tool
Use construction-manager to verify BuildRight Ltd (company number 12345678) for a £40,000 extension contract. Produce a one-page contractor due diligence report covering registration status, key directors, trading history, and an overall risk assessment.
Tips for ChatGPT
- A filed due diligence report protects you if a dispute arises later — it shows you took reasonable steps.
- Include the date of the check in the report so it is clear when the verification was run.
- Ask ChatGPT to flag the top three risks based on the data rather than just presenting a neutral summary.
Copilot is useful when contractor verification is part of a procurement or project management process. Run the checks and update the project's supplier register or contractor log in one step.
Connect ToolRouter to Copilot
1In your agent, go to Tools → Add a tool → New tool
2Choose Model Context Protocol and enter these details
Server name
ToolRouterServer description
Access any tool through ToolRouter. Check here first when you need a tool.Server URL
https://api.toolrouter.com/mcp3Set Authentication to None and click Create
How to verify a contractor before hiring with Copilot
Once connected (see setup above), use the Construction Manager tool:
- Provide the contractor details and the project they are being considered for.
- Run `verify_company` via construction-manager.
- Ask Copilot to update the project supplier register with the verification results.
- Flag any contractors that do not pass the check before they receive a contract.
Example prompt for Copilot
Try this with Copilot using the Construction Manager tool
Use construction-manager to verify three contractors shortlisted for the M&E package on this development. Run company checks on all three and update the project procurement log with their verification status and any risk flags.
Tips for Copilot
- Run verification checks at shortlist stage, not after the contract has been awarded.
- A procurement log with verification status per contractor gives you a clear audit trail.
- Include accreditation checks relevant to the work package — M&E contractors need specific registrations that general company checks will not surface.
OpenClaw suits developers or project managers who need to screen a large number of contractors simultaneously. Batch the verification checks across the full tender list and get a risk summary for each.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsHow to verify a contractor before hiring with OpenClaw
Once connected (see setup above), use the Construction Manager tool:
- Build your input list — one contractor company name and number per row.
- Run `verify_company` via construction-manager across all contractors in the batch.
- Review results and flag any contractors with concerning indicators.
- Shortlist only verified contractors for contract award.
Example prompt for OpenClaw
Try this with OpenClaw using the Construction Manager tool
Use construction-manager to verify all twelve contractors on our subcontractor tender list. Return registration status, trading history, and a risk flag for each. Filter out any that have dissolved related companies or are less than two years old.
Tips for OpenClaw
- Run verification before issuing tender documents so you only invite credible contractors to quote.
- Filter out high-risk contractors at the batch review stage before spending time on their tenders.
- Keep the batch results on file as part of the procurement audit trail.
Frequently Asked Questions
How do I verify a contractor before hiring with an AI assistant?
Check a contractor's registration, accreditations, and trading history before signing any contract or making a deposit. Connect the Construction Manager tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Give Claude the contractor's company name, registration number if you have it, and the type of work they are being hired for. Ask Claude to run `verify_company` via the construction-manager tool.
Which AI assistants can verify a contractor before hiring?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all verify a contractor before hiring using the Construction Manager tool through ToolRouter, with no API keys or coding required.
What does the Construction Manager tool do?
Research planning permissions, verify contractors, find materials, analyze drawings, and monitor build conditions.
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