Works with Claude, ChatGPT and Copilot

NZ, AU and UK tax research, inside the AI you already use

Connect your assistant to Nylon. It then answers from legislation, cases and guidance instead of from memory, and cites every source. What’s MCP?

https://mcp.usenylon.com/mcpCopy

Paste this into your assistant’s connector settings. Steps for Claude →

Open the quickstart

Pick your assistant →

• Claude
• Claude Code
• ChatGPT
• Microsoft Copilot Studio
• Gemini CLI

Your assistant, connected to Nylon

When must a business register for GST in New Zealand?

1. search_library“GST registration requirement” · New Zealand · legislation
2. read_documentGoods and Services Tax Act 1985, s 51

A business that carries on a taxable activity must register once its turnover over the past 12 months exceeds $60,000, or when it expects turnover over the next 12 months to exceed $60,000.¹

Source 1Goods and Services Tax Act 1985, s 51 ↗

Illustration: the assistant calls search_library, then read_document, then answers with a cited source.

Connect your assistant

Step-by-step guides for every assistant Nylon supports today.

• ClaudeAnthropic · 2 minutesAdd Nylon as a custom connector in Claude on the web, desktop and mobile.
• Claude CodeAnthropic · 1 minuteOne terminal command, then sign in through your browser.
• ChatGPTOpenAI · 2 minutesInstall the Nylon app in ChatGPT, or add it by URL.
• Microsoft Copilot StudioMicrosoft · 10 minutesAdd Nylon as an MCP tool in a Copilot Studio agent, then share it in Microsoft 365 Copilot.
• Gemini CLIGoogle · 1 minuteOne terminal command, then sign in through your browser.
• Other MCP clientsStreamable HTTP + OAuthUsing another assistant or agent? See what it needs to connect.

How it works

Three steps, once per person. Your assistant does the rest.

1. 1

   Add the URL

   Paste the Nylon MCP address into your assistant’s connector settings.

2. 2

   Sign in with Nylon

   Approve the connection with your own Nylon account. No keys to share.

3. 3

   Ask, with citations

   Your assistant searches Nylon, reads the source and links every answer to it.

Two tools, both read-only

The assistant searches Nylon’s library, then reads the documents it needs. Nothing is changed or uploaded. Full New Zealand and Australian coverage, and UK tax. Filter by jurisdiction, content type and date.

Tool reference →

• search_librarySearch the Nylon legal librarySearches Nylon’s library of New Zealand, Australian and UK legislation, cases and commentary. One call runs up to five searches in parallel, filtered by jurisdiction, content type, practice area and date. Each result carries an extract, identifiers for a follow-up read, and a link to the source in Nylon.
• read_documentRead within a Nylon legal-library documentReads within one document from Nylon’s library: the whole document, the passages that best match a phrase, or the passages either side of a known extract. Use it after a search to check exact wording or read further. Every extract links back to the source in Nylon.

Try a first question

Once Nylon is connected, paste one of these into your assistant.

• NZ

  New Zealand GST

  Using Nylon, when must a business register for GST in New Zealand? Cite the sections of the Goods and Services Tax Act 1985.

  Copy
• AU

  Australian Division 7A

  Using Nylon, when does Division 7A treat a private company loan to a shareholder as a dividend? Cite the provisions and any ATO guidance.

  Copy
• UK

  UK loans to participators

  Using Nylon, when does a loan from a close company to a participator trigger a section 455 charge? Cite the legislation and HMRC guidance.

  Copy

Built for firms that answer to regulators

Per-user sign-in, read-only tools and short-lived tokens.Security and data →

• SOC 2 Type IIIndependently audited
• ISO 27001Information security
• ISO 42001AI management
• Read-onlyThe tools search and read; they change nothing
• OAuth 2.1 + PKCEPer-user sign-in, no shared keys
• 1-hour tokensAccess tokens expire after an hour

Start in two minutes

You need a Nylon account and an assistant that supports custom connectors.

Open the quickstartRead the docs