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I 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.

Exploring How iMessage Works Internally on macOS (Technical Overview)

U.S. is withdrawing from 66 international bodies

Can We Save Wine from Wildfires?

Alphabet's market cap surpasses Apple's for first time since 2019

How we made v0 an effective coding agent

San Francisco Battles Skateboarders over the City's Ugliest Fountain

AI Didn't Make Engineering Teams Faster. It Forced Them to Grow Up

Replacing my mail server with AWS SES

Hand Off Linear Issues to Claude Code (OS)

Show HN: LiftMind – AI Addiction Recovery

Show HN: V.ai: a open source character platform

HSBC blocks app users for having sideloaded password manager

Musashi: Motorola 680x0 emulator written in C

NumPy-QuadDType: A cross-platform Quad (128-bit) float Data-Type for NumPy

AI starts autonomously writing prescription refills in Utah

The grief when AI writes most of the code

Why does today's entertainment leave our souls in ruins?

The virtual AmigaOS runtime (a.k.a. Wine for Amiga:)

Don't Let the Grocery Store Scan Your Face: How to Stop Wegmans

The Temper Language

Show HN: I built a free AI text-to-video generator in browser

Curating my Corner of the Internet with a freehand web editor

The sub-zero lair of the most powerful computer

A Deep Dive on Egress Fees

3.4B-compound space via automated small molecule synthesis and AI [pdf]

Show HN: Telio – AI agents for call/text support, built on sandboxed lakehouses

Time Ablation Experiments on tau2-bench

New York Television

Show HN: Formal Verification via Spectral Geometry (Lean 4)

Show HN: I upgraded my open source, zero knowledge, self destructing note app

Show HN: StellarMCP – Free MCP Tools for Claude and Other LLMs