Zenyio in Claude and ChatGPT
Ask your prospecting questions in plain language: Claude or ChatGPT queries the Zenyio directory of Swiss companies in the commercial register directly, with their NOGA sector, registration date and the leaders published in the SOGC.
Example questions
- "Find the fiduciary firms registered in Geneva this month."
- "Which insurance brokers registered in the canton of Vaud in the last year?"
- "Who runs CHE-387.735.921 and who can sign for it?"
- "Which NOGA code covers real estate agencies?"
- "How many credits do I have left this month?"
Connect
Zenyio connector address:
https://zenyio.ch/api/mcpClaude (app or claude.ai)
- Open Settings → Connectors → Add custom connector.
- Name it "Zenyio" and paste the address above.
- Sign in to Zenyio and click Allow.
ChatGPT
- Turn on developer mode in Settings → Security and login (depending on your ChatGPT plan).
- Open Plugins → MCP → Add, choose "Streamable HTTP" and paste the address above.
- Sign in to Zenyio and click Allow.
Claude Code and command-line tools
- In Zenyio, open Settings → Connect Claude / ChatGPT → Claude Code and other tools.
- Create a personal API key.
- Copy the command shown and run it in a terminal.
Requires a Zenyio Basic or Premium plan. On ChatGPT, developer mode depends on your ChatGPT plan.
What the assistant can do
| Tool | Description | Credits |
|---|---|---|
search_companies | Search active companies by name or UID and filter by canton, NOGA sector, legal form and registration age. | Free |
get_company | Show a company's full profile: address, purpose, capital, sector, registration date and leaders with their signing authority. | 1 credit |
find_noga_codes | Find the NOGA codes for an activity, in French or German. | Free |
list_prospects | List the companies in your Zenyio pipeline with their stage. | Free |
list_alerts | List your alerts for new registrations. | Free |
get_usage | Show your plan and this month's credits. | Free |
prepare_letter | Prepare a one-page postal letter to a company (without sending it) and show the full text, recipient and cost. | Free |
send_letter | Send the prepared letter after you confirm in the conversation. Printed and posted as B-mail by Swiss Post. | 1 letter credit |
list_letters | List your latest letters and their status. | Free |
Sending letters is off by default: turn it on in Settings → Connect Claude / ChatGPT. It requires verified sender details and letter credits, and is limited to 10 letters per 24 hours.
Data and privacy
- Nothing is sent without your consent: the assistant can only send a letter if you turned this on in Settings and after you explicitly confirm. It cannot change your account or make payments.
- The assistant only receives the answers to your questions: public data from the commercial register and the SOGC and, when you ask, your pipeline, alerts and credits.
- No password, payment or billing data is shared.
- Answers received by the assistant are processed by its provider (Anthropic or OpenAI) under the terms you accepted with them.
- You can disconnect an app or revoke a key at any time in Settings; access stops immediately.
Details in our privacy policy (section 4.10).
Help
A question or a connection problem? Write to us at contact@zenyio.ch