Add HasData hosted MCP plugins (24 sites, streamable HTTP)

[sergey-ermakovich]

Adds 24 hosted plugins for HasData's remote MCP servers, one per data source, following .agents/skills/adding-a-plugin/SKILL.md and the shape of the exa plugin.

What they are. HasData (https://hasdata.com) runs a hosted MCP server over streamable HTTP that returns parsed JSON for a specific site. Each plugin points at the same endpoint filtered to one site with the apis query parameter, so Devin sees a short, relevant tool list per plugin:

• Google Search (SERP, AI Overview, AI Mode, news, shopping, short videos), Google Maps, Google Images, Google Trends, Google Scholar, Google Flights
• Amazon, Walmart, Shopify storefronts
• Zillow, Redfin
• Indeed, Glassdoor
• Airbnb, Booking.com, Yelp, Yellow Pages
• YouTube, TikTok, Instagram, Facebook
• Bing, DuckDuckGo
• Web Scraping (any public page, optional JavaScript rendering and extraction rules)

Shape. plugins/hasdata-<site>/.devin-plugin/plugin.json with name, displayName, description, homepage, repository, keywords from the Devin vocabulary, a checked-in logo.svg, and mcpServers with exactly one HTTP server keyed by the slug:

"mcpServers": {
  "hasdata-zillow": {
    "url": "https://mcp.hasdata.com/mcp?apis=zillow",
    "headers": { "x-api-key": "${HASDATA_API_KEY}" }
  }
}

No credential is checked in. HASDATA_API_KEY is a plain placeholder resolved from the user's saved credentials; a key is created free at https://app.hasdata.com. The same endpoint also supports OAuth 2.1 with dynamic client registration for clients that prefer it.

Provenance. Each plugin's repository is the public source of that server (https://github.com/HasData/-mcp, MIT), with a README that lists the tools and a contract test suite run in CI against the live endpoint. The servers are published in the official MCP registry as com.hasdata/<site> and on npm/PyPI. Documentation: https://docs.hasdata.com/mcp-server. Support: support@hasdata.com.

Validation. python3 scripts/validate.py --fix and python3 scripts/validate.py --fetch both pass (194 entries, sorted, each identity once). All 24 entries are added to optionalPlugins.

I maintain these servers on behalf of HasData. Happy to split this into smaller PRs or adjust keywords if you prefer a different grouping.

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