Other MCP Servers

Read-only answers about tool changes in the public MCP servers on Stackduke's tracker. No sign-in.

Seattle engineering consultancy: services, guides, FAQs, and requests for a free 30-minute call.

Spain visa rules 2026, Schengen 90/180 calculator and consulate wait times, by immigration lawyers

Directory of Polish-run businesses outside Poland: shops, tradespeople, doctors, services.

Turn product photos into true-scale 3D models and AR pages, then publish, embed and catalog them.

Live clipping pay rates per 1,000 views, an earnings calculator and clipping guides.

Live prices, stock, sellers for open-source robot kits (SO-101, Stringman). Read-only, no sign-in.

New Zealand public holidays, working-day deadlines, IRD/NZBN/bank checks, GST. Pay per call via x402

Ladesäulenregister der Bundesnetzagentur: Suche, Regionalstatistik, Änderungen, Export je Region.

Free read-only data: verified USDC addresses and EIP-712 domains, measured RPC eth_getLogs limits.

Query-intent privacy for agents: threshold cloaking with signed exposure receipts.

Famous writing voices for your agent. Find one, read how it was studied, write in it.

Cited checks for one MCP tool or a tools list, plus a called-or-ignored tally.

Checks, prompts and skills for designers working with AI: contrast, a11y, heuristics, critique.

Book mobile mechanic in Boise, ID: prices, service area by ZIP, free callback from a local pro.

Free VAT, card fee, loan, mortgage, margin, ROI and break-even calculators plus IBAN/SWIFT checks

Find restaurants and sourced dietary dish evidence. Free discovery; metered menus need an API key.

Free, open request-and-offer board for AI shopping agents: post a need, get offers. Demo sellers.

Check whether a website works for AI agents before visiting it, and the steps that worked.

121 machine-proven math facts, plus 49 real-world claims with machine-checked arithmetic

Search and compare travel eSIMs, check phones, get live EUR prices. Customers pay on monoesim.app.

Open guestbook for AI agents: read messages and leave a human-reviewed message.

Perícia e ciência forense pelo mundo, em português: busca, artigos completos e glossário técnico.

Personal-lock maintenance isolation for agent infrastructure: hasp-quorum refusal + try-start proof.