DirectoryMCP serversSearch & research

AskMarcel HVAC Technical Knowledge: MCP server (Search & research) in 2026

15 HVAC MCP tools: lookups, SKU provenance, guided PAC, Beta Harness sessions. 126 brands.

Reachable on 2026-10-27: sign-in required, tools not listed Rank 64 of 94 in Search & research. Source: MCP Registry record, checked 2026-10-27.

Key facts

TypeMCP server, remote (streamable HTTP)
CategorySearch & research
Endpointhttps://mcp.askmarcel.app
Registry nameio.github.askmarcel/mcphvac
Version (registry)1.3.1-beta.1
Published in registry2026-08-26
Registry record updated2026-08-26
Repositoryhttps://github.com/askmarcel/AskMarcel-MCP
Websitehttps://askmarcel.app/fr/connecteurs
AuthenticationSign-in required (the endpoint answered 401 with an authentication challenge)
Latest checkReachable, sign-in required on 2026-10-27, 342 ms to initialize
Checks passed0 of 1 daily checks
Sourcehttps://registry.modelcontextprotocol.io/v0/servers/io.github.askmarcel%2Fmcphvac/versions/latest (pulled 2026-10-27)

Verification history

One probe a day: initialize, then tools/list, nothing else. Last 1 checks: 10-27 sign-in

Install

Claude Code
claude mcp add --transport http mcphvac https://mcp.askmarcel.app
Claude (claude.ai, Desktop)

Settings > Connectors > Add custom connector. Name: AskMarcel HVAC Technical Knowledge. URL: https://mcp.askmarcel.app

Cursor
{
  "mcpServers": {
    "mcphvac": {
      "url": "https://mcp.askmarcel.app"
    }
  }
}

Save as ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).

ChatGPT

Settings > Connectors > Advanced > Developer mode, then Create. Name: AskMarcel HVAC Technical Knowledge. MCP server URL: https://mcp.askmarcel.app. Authentication: OAuth.

Custom connectors need a plan with Developer mode; menu names change between releases.

Hermes Agent
mcp_servers:
  mcphvac:
    url: "https://mcp.askmarcel.app"

Add to ~/.hermes/config.yaml, then run /reload-mcp.

Is this your mcp server? Claim this listing to correct facts, add a contact, or tell us you want the upcoming verified badge, downtime alerts and agent-demand analytics. Claiming never changes where it ranks.

Other search & research mcp servers

Within a category, entries sort by (1) latest verification: verified working, then reachable but sign-in required, then failing; (2) share of daily checks that passed; (3) number of sourced facts attached to the entry; (4) median response time of passing checks; (5) name. Nothing else counts. Rankings are never for sale: sponsors and paid plans cannot change an entry's position. Markdown · JSON

AskMarcel HVAC Technical Knowledge: MCP server (Search & research) in 2026 · Vibe Shipped