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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "telefonbuch": {
      "type": "remote",
      "url": "https://mcp.1820.ch/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "telefonbuch": {
      "type": "http",
      "url": "https://mcp.1820.ch/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=telefonbuch&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLjE4MjAuY2gvbWNwIn0%3D"
}

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

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

extensions:
  "telefonbuch":
    enabled: true
    name: "telefonbuch"
    type: streamable_http
    uri: "https://mcp.1820.ch/mcp"
    timeout: 300

Quality 79 / 100good

protocol88 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
warn
protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations4 of 4 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_directory_entry (destructiveHint, openWorldHint); reverse_phone_lookup (destructiveHint, openWorldHint); search_swiss_directory (destructiveHint, openWorldHint); …
pass
tools.token_costabout 999 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability50 · weight 15

pass
stability.changes4 tool changes in 30 days
fail
stability.rug_pull1 tools kept their name but changed most of their description in 30 days; review before trusting them

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 999 tokens to load them all · tool set 66000dfc412b · tools last changed 2026-09-27 · checked 2026-10-19 10:52 UTC

Tool changes

2026-09-27search_swiss_directorychangeddescription, input schema, annotationsmeaning changed
before
Full-text search over the Swiss public phone/business directory (1820.ch): matches on name, company, or category, optionally narrowed by locality/postcode/canton. Use get_directory_entry for phone numbers and opening hours of a specific result.
after · 46% of words in common
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 for phone numbers and opening hours of a specific result.
2026-09-27reverse_phone_lookupchangedinput schema, annotations
2026-09-27get_directory_entrychangedinput schema, annotations
2026-09-27browse_business_categorychangedinput schema, annotations

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 82 / 100

no-repository

provenance55

liveness99

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-96% +updated-22d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://mcp.1820.ch/mcp` streamable-http	none	yes	96%	702 ms	2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05	2026-10-19

Tools (4)

`browse_business_category`read-only	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`read-only	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`read-only	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`read-only	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 for phone numbers and opening hours of a specific result.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "ch.1820/telefonbuch",
  "title": "1820.ch – Telefonbuch Schweiz",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp.1820.ch/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.1",
  "websiteUrl": "https://1820.ch/ch/de/ki-assistenten",
  "description": "Swiss phone directory: search people and businesses, reverse number lookup, business categories."
}