MCP server

1820.ch – Telefonbuch Schweiz Official

ch.1820/telefonbuch

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Swiss phone directory: search people and businesses, reverse number lookup, business categories.

Working at last checkVerified publisher: 1820.chAbout 1,107 tokens per request once connected4 tools

https://mcp.1820.ch/mcp

At a glance

Type: MCP server
Publisher: 1820.ch (verified by the MCP Registry)
Status: Working at last check
Tools: 4
Token cost: About 1,107 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http telefonbuch https://mcp.1820.ch/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.telefonbuch]
url = "https://mcp.1820.ch/mcp"

Gemini CLI

{"mcpServers":{"telefonbuch":{"httpUrl":"https://mcp.1820.ch/mcp"}}}

Cursor

{"mcpServers":{"telefonbuch":{"url":"https://mcp.1820.ch/mcp"}}}

VS Code

{"servers":{"telefonbuch":{"type":"http","url":"https://mcp.1820.ch/mcp"}}}

Antigravity

agy mcp add telefonbuch https://mcp.1820.ch/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"telefonbuch","server_url":"https://mcp.1820.ch/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"telefonbuch","server_url":"https://mcp.1820.ch/mcp"}

browse_business_category Browses the web · ~294 tokens
Lists public directory entries in one business category, optionally narrowed to a locality/postcode/canton. Use search_swiss_directory instead for a free-text query.
get_directory_entry ~218 tokens
Fetches the full public detail for one directory entry by its entry_id (public_id), including phone numbers, opening hours, and links when the entry has them. Use get_directory_entry for phone numbers and opening hours; use search_swiss_directory or browse_business_category to find an entry_id first
reverse_phone_lookup ~198 tokens
Looks up the public directory entry (or entries) associated with a Swiss phone number. Accepts national ("079 123 45 67"), E.164 ("+41791234567"), or compact notation. Returns an empty result list when the number has no findable public listing.
search_swiss_directory ~397 tokens
Full-text search over the Swiss public phone/business directory (1820.ch). Matches ALL words in query, so a short keyword works best; put any place name in location, not query. For "business type X in place Y", browse_business_category with a category slug is an alternative. Use get_directory_entry

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