# AP Dialog AG (1820.ch)

Connects callers to Swiss phone numbers, addresses and opening hours through a human phone operator, plus an MCP server for AI assistants.

- Atlas card: https://inite.ai/en/atlas/1820.ch
- Site: https://1820.ch
- For: people in Switzerland needing phone numbers, opening hours, or concierge help by phone
- Categories: voice
- Use 0/100 · alive 100/100

## Used for

- look up Swiss phone numbers, addresses and opening hours
- have a call connected directly to the sought number
- connect an AI assistant to directory data via MCP server

## Price

Not read yet.

## For developers

- MCP server: ch.1820/telefonbuch (namespace; open on 2026-10-19, 4 tools)
- MCP server card: https://1820.ch/.well-known/mcp.json
- Read 2026-10-19

## MCP server, measured daily

Server: https://mcp.1820.ch/mcp, checked every day since 2026-10-19 (5 checks).

- Answered: measuring, 5 daily checks so far
- Median first answer: 692 ms
- Sign-in: none
- Context its tool definitions take: about 968 tokens (4 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-19

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Source: INITE Atlas, https://inite.ai/en/atlas/1820.ch. JSON: https://inite.ai/api/atlas/1820.ch. MCP: https://inite.ai/api/mcp (atlas_lookup).