"MCP servers that work without API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
An open MCP server for the Portuguese housing market, run by flatin.pt. No API key, no registration, no rate-limit negotiation. Twelve tools: • imt_calculate — IMT and Imposto do Selo on a purchase, 2026 tables, including the reduced table, the relief for buyers aged 35 or under and the flat rate for non-residents • imi_rate / imi_annual_cost — the IMI rate of any of the 308 municipalities for 2023–2025, and the annual bill for a given VPT • construction_barometer — how many building-permit cases enter a town hall each month (our own indicator: monthly for three municipalities, annual for eight, method and revision policy published) • search_newbuilds / get_newbuild — 250 new developments, 53 municipalities, 71 developers, with stage and, where published, price • where_to_live / municipality_stats / compare_municipalities — municipal comparisons • glossary_lookup — Portuguese property and tax terms • request_consultation / subscribe_digest — reaching a human The data behind the tax tools is published as open data under CC BY 4.0 on the Portuguese national portal (dados.gov.pt) and archived on Zenodo with a permanent DOI. Anyone may reuse it. Humans, not bots, answer the people who get in touch: a home purchase involves personal data under the GDPR and decisions that cannot be refunded.
Madeira hiking permit trails: availability for 120 days, fees, booking links and reservations.
Romanian company data from the official registers, for AI assistants and agents. Look up any company or sole trader by fiscal code (CUI) or by name: identification data, status, VAT registration, e-Factura enrolment, annual financial statements since 2008, newly registered companies, and the BNR reference exchange rate. Sources are the trade register (ONRC open data), the tax authority (ANAF), the Ministry of Finance and the National Bank of Romania; every answer says which register it comes fro
Read-only payroll calculations and multi-country tax comparisons for eight countries.
Nederlandse overheids- en registerdata via MCP: KVK, BAG, energielabel, kenteken, DSO en meer.
Search companies in public registers: register card, live VAT risk check, risk, financials, watch.
Verified Texas business records for AI agents: entities, licenses, openings and enforcement history.
Daily Tampa Bay and Southwest Florida building permits, with job value and contractor. Pay via x402.
Search Norwegian companies in the Brønnøysund registers by industry, location, size and revenue. Get profiles, accounts, board, groups and websites. No API key.
Deterministic Japan statutory calculations with cited primary sources: net pay, social insurance, income walls, bonus, consumption tax, business days, overtime, retirement tax, payslip audit and crypto tax. x402 (USDC on Base), no API key; failed calls are never charged.
Building permits for NYC, LA, Chicago, Dallas and 8 more US areas, France, NSW and Far North NZ.
Official economic statistics, company filings, earnings calls and market data - extracted from first party sources, with sources cited.
Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. 100 free/day.
SEC filings as tools: 13F superinvestor portfolios, Form 4 insider trades, XBRL and filing text
Is that name taken? Trademark, company and domain checks, and opposition windows. No account.
Latin American regulatory intelligence: bills, regulations, votes and political actors.
Paw to paw. Shelter pets, one question away. Ask in plain words, in any of ten languages ("Use Petnecto to find me a calm older dog near Seattle that is good with cats") and get real adoptable pets near the place you name, with photos, ages, sizes, what each rescue says about them, and exactly how to reach the rescue. Listings come from open public data that shelters and governments publish (Taiwan's national adoption listings, King County WA and Montgomery County MD in the US, Zaragoza and Vienna in Europe), credited in every answer. Adoption always happens through the rescue: Petnecto takes no payments, applications or personal details, and needs no account.
Official company data from 66 business registers: search, VAT/EORI/LEI, UBO, sanctions.
CNPJ API: Brazilian company records (Receita Federal open data). Google sign-in or API key
WhatsApp Business + CNPJ enrichment (71M RFB) for Brazilian AI workflows.
