Terraform Registry MCP (thrashr888) vs OpenTofu MCP
Both are cloud & infrastructure MCP servers, and we ran both through the same test (provider version) in each app. Terraform Registry MCP (thrashr888) passed 4 of 4 apps we tested it in; OpenTofu MCP passed 4 of 4.
Test results side by side
| Terraform Registry MCP (thrashr888) | OpenTofu MCP | |
|---|---|---|
| Claude Code | Passed 2026-10-15 | Passed 2026-10-20 |
| Cursor | Passed 2026-10-15 | Passed 2026-10-20 |
| Claude Desktop | Passed 2026-10-19 | Passed 2026-10-19 |
| ChatGPT (Codex) | Passed 2026-10-20 | Passed 2026-10-19 |
| Tools exposed (protocol check) | 10 tools | 7 tools |
| GitHub stars | 120 | 111 |
| License | MIT | NOASSERTION |
| Last push | 2025-05-20 | 2026-09-21 |
Results from our own harness runs, dated per cell. Stars and last push from GitHub at our last data refresh. We don’t pick a winner here: which one fits depends on your app and setup.
What each does
Terraform Registry MCP (thrashr888): Looks up providers, resources and modules in the public Terraform Registry. The maker archived the repo; HashiCorp's official server replaces it.
OpenTofu MCP: OpenTofu's server for searching the OpenTofu Registry: providers, versions, resources and modules. Hosted, keyless.
