Best cloud & infrastructure MCP server for Claude Desktop, tested

Dated results

• OpenTofu MCP passed in Claude Desktop on 2026-10-19 (Claude Desktop 2.37337.1 (Linux beta, Electron 44.7.0), mcp-remote 0.15.1, connected in 5.1s). Full result
• Terraform MCP passed in Claude Desktop on 2026-10-19 (Claude Desktop 2.37337.1 (Linux beta, Electron 44.7.0), package version not recorded, connected in 0.0s). Full result
• Terraform Registry MCP (thrashr888) passed in Claude Desktop on 2026-10-19 (Claude Desktop 2.37337.1 (Linux beta, Electron 44.7.0), terraform-mcp-server 0.13.0, connected in 0.8s). Full result

Why OpenTofu MCP is the candidate

OpenTofu MCP passed every step in Claude Desktop. It is the group’s site-wide candidate (judged 2026-10-20): Returned the latest hashicorp/aws provider version in both Claude Code and Cursor with no key, in 2 calls in total. HashiCorp's Terraform MCP and the archived Terraform Registry MCP also passed both with 2 calls each, so this is a tie on pass and calls; OpenTofu gets the nod for the smaller tool list (7 vs 9 and 10), the same tiebreak used in Browser automation. Terraform MCP also passed in ChatGPT (Codex). Servers that need a cloud account (Cloudflare, AWS, Kubernetes) aren't tested. Confirmed Oct 20, 2026: a second run in Claude Code and Cursor passed again (returned hashicorp/aws 6.69.1).

Provisional: based on one dated run per app (no repeat runs yet), so treat it as a candidate, not a final pick. How we test.

What failed or is partial in Claude Desktop

None of these servers failed in Claude Desktop.

Install in Claude Desktop

The exact snippet we tested is on the OpenTofu MCP page (pick the Claude Desktop tab). Not connecting? Claude Desktop MCP troubleshooting.

Not tested in Claude Desktop yet

Cloudflare MCP, Grafana MCP (official), CloudBase AI Toolkit, Oracle MCP servers, Postman MCP Server, Apollo MCP Server, CrowdStrike Falcon MCP, VictoriaMetrics MCP, AWS MCP servers, Docker Hub MCP Server, Hostinger API MCP, Azure MCP Server, gcloud MCP, Cloud Run MCP, Kubernetes MCP, Radar (Kubernetes UI), FutureInfra MCP, SSH MCP Server, Prometheus MCP Server. Listed from their source; no result in Claude Desktop yet.

Questions

What is the best cloud & infrastructure MCP server for Claude Desktop?

In ToolPassed's hands-on tests in Claude Desktop, OpenTofu MCP is our provisional candidate for cloud & infrastructure: it passed install, connect, tools and an agent task on 2026-10-19. We ran 3 cloud & infrastructure MCP servers in Claude Desktop; 3 passed every step.

Does OpenTofu MCP work with Claude Desktop?

OpenTofu MCP passed in Claude Desktop on 2026-10-19 (Claude Desktop 2.37337.1 (Linux beta, Electron 44.7.0), mcp-remote 0.15.1, connected in 5.1s).