io.github.chrischall/viator-mcp

Search Viator tours and activities — products, availability, attractions, destinations.

What does this entry provide?

io.github.chrischall/viator-mcp is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding io.github.chrischall/viator-mcp to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 78/100
Install method: npm
Repo: chrischall/viator-mcp
Repo updated: Oct 17, 2026

Install command

npx -y @chrischall/viator-mcp@2.1.10

Install method: npm

Review the upstream source before running this command.

GitHub project

Quality

Repo stars

Repo updated

Oct 17, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-17T16:14:29.669727Z",
      "publishedAt": "2026-10-17T16:14:29.669727Z",
      "statusChangedAt": "2026-10-17T16:14:29.669727Z"
    }
  },
  "server": {
    "name": "io.github.chrischall/viator-mcp",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "2.1.10",
    "packages": [
      {
        "version": "2.1.10",
        "transport": {
          "type": "stdio"
        },
        "identifier": "@chrischall/viator-mcp",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "VIATOR_API_KEY",
            "format": "string",
            "isSecret": true,
            "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)"
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/chrischall/viator-mcp",
      "source": "github"
    },
    "description": "Search Viator tours and activities — products, availability, attractions, destinations."
  }
}

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