viator-mcp

A community-developed MCP server that interfaces with the Viator Partner API to allow agents to search for tours, activities, and experiences. It supports structured filtering, free-text search, retrieving product details, checking availability schedules, and browsing attractions and destinations. The server is read-only, focusing on catalog search and content retrieval rather than booking, and includes tools for health checks and reference data like exchange rates.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by chrischall

You need:Get a key by signing up as a Viator affiliate at partnerresources.viator.comVIATOR_API_KEY yes Viator Partner API key (sent as exp-api-key )

Vendor documentation

What you can do with it

Search for tours and activities using structured filters or free text
Retrieve detailed product information and availability schedules
Browse attractions and destinations
Check API health and authentication status

Source and maintenance

Community listingRegistry 2.1.10

mcp-registry: io.github.chrischall/viator-mcp@2.1.10 Source repository

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@chrischall/viator-mcp 2.1.10

npm

@chrischall/viator-mcp package definition

{
  "version": "2.1.10",
  "transport": "stdio",
  "identifier": "@chrischall/viator-mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "VIATOR_API_KEY",
      "format": "string",
      "isRequired": true,
      "description": "Viator Partner API key (exp-api-key) — free Basic Access affiliate signup at partnerresources.viator.com"
    },
    {
      "name": "VIATOR_API_BASE_URL",
      "format": "string",
      "description": "API host (default production; set https://api.sandbox.viator.com/partner for a sandbox key)"
    },
    {
      "name": "VIATOR_LANGUAGE",
      "format": "string",
      "description": "Accept-Language for response text, e.g. en-US, es, fr, de, ja (default en-US)"
    },
    {
      "name": "VIATOR_CACHE_TTL",
      "format": "string",
      "description": "Seconds to cache identical read responses (default 60; 0 disables)"
    },
    {
      "name": "VIATOR_STATIC_CACHE_TTL",
      "format": "string",
      "description": "Seconds to cache reference data — destinations, tags, locations, rates (default 3600; 0 disables)"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "viator-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@chrischall/viator-mcp@2.1.10"
      ],
      "env": {
        "VIATOR_API_KEY": "<YOUR_VIATOR_API_KEY>",
        "VIATOR_API_BASE_URL": "<YOUR_VIATOR_API_BASE_URL>",
        "VIATOR_LANGUAGE": "<YOUR_VIATOR_LANGUAGE>",
        "VIATOR_CACHE_TTL": "<YOUR_VIATOR_CACHE_TTL>",
        "VIATOR_STATIC_CACHE_TTL": "<YOUR_VIATOR_STATIC_CACHE_TTL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "viator-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@chrischall/viator-mcp@2.1.10"
      ],
      "env": {
        "VIATOR_API_KEY": "<YOUR_VIATOR_API_KEY>",
        "VIATOR_API_BASE_URL": "<YOUR_VIATOR_API_BASE_URL>",
        "VIATOR_LANGUAGE": "<YOUR_VIATOR_LANGUAGE>",
        "VIATOR_CACHE_TTL": "<YOUR_VIATOR_CACHE_TTL>",
        "VIATOR_STATIC_CACHE_TTL": "<YOUR_VIATOR_STATIC_CACHE_TTL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "viator-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@chrischall/viator-mcp@2.1.10"
      ],
      "env": {
        "VIATOR_API_KEY": "<YOUR_VIATOR_API_KEY>",
        "VIATOR_API_BASE_URL": "<YOUR_VIATOR_API_BASE_URL>",
        "VIATOR_LANGUAGE": "<YOUR_VIATOR_LANGUAGE>",
        "VIATOR_CACHE_TTL": "<YOUR_VIATOR_CACHE_TTL>",
        "VIATOR_STATIC_CACHE_TTL": "<YOUR_VIATOR_STATIC_CACHE_TTL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "viator-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@chrischall/viator-mcp@2.1.10"
      ],
      "env": {
        "VIATOR_API_KEY": "<YOUR_VIATOR_API_KEY>",
        "VIATOR_API_BASE_URL": "<YOUR_VIATOR_API_BASE_URL>",
        "VIATOR_LANGUAGE": "<YOUR_VIATOR_LANGUAGE>",
        "VIATOR_CACHE_TTL": "<YOUR_VIATOR_CACHE_TTL>",
        "VIATOR_STATIC_CACHE_TTL": "<YOUR_VIATOR_STATIC_CACHE_TTL>"
      }
    }
  }
}

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