Show HN: StellarMCP – Free MCP Tools for Claude and Other LLMs
stellarmcp.comI built a collection of small, useful MCP tools that give LLMs real-world capabilities.
Tools include: DNS lookups, WHOIS, domain age/authority checks, weather, currency conversion, unit conversion, QR code generation, timezone handling, and more.
Free: 10 requests/hour per IP Free with login: 60 requests/hour (OAuth via GitHub/Google)
No paid tier, no credit card. Just add stellarmcp.com/mcp to your Claude config and the tools are available.
Happy to answer questions about the implementation or MCP protocol.
Comments
Cool set of practical tools—stuff like WHOIS and domain authority checks fill real gaps that Claude needs without overcomplicating things.
On the auth side, GitHub/Google OAuth is smart for bumping limits, but raw MCP makes JWT validation a slog (we burned days on it early). If you're open-sourcing the impl, `@leanmcp/auth` decorator drops it to ~20 lines with auto-injected user context—handles multiple providers out of the box.
How'd you wire up the rate limiting backend to tie logins to IPs without killing perf? (Disclosure: co-founder at LeanMCP)