"MCP servers that work without API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Zillow for-sale, for-rent and sold listings, and full property details, as structured JSON.
AI title risk analysis for US real estate closing docs. Get an API key at curagent.io
Daily Tampa Bay, Southwest and Central Florida permits with job value and contractor. Pay via x402.
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.
Get automated U.S. residential home value reports with estimated value ranges and confidence, comparable sales, rent estimates, property facts, market forecasts and branded PDFs.
OneGoodArea gives AI agents and developer tools access to sourced, dated and confidence-rated place intelligence across Great Britain. Resolve locations, analyse and compare neighbourhoods, discover similar areas, generate decision-focused briefs and monitor changes through 12 MCP tools backed by deterministic, explainable data.
French rental documents (leases, rent receipts, inventories) generated as filled PDFs by AI agents.
UK tenancy and employment rule checks: deposits, notice, rent increases, holiday and minimum wage.
Building data: address, use, size, height, floors, age, roof, solar panels and the businesses registered at each building.
DePIN network telemetry with the source, as_of time and an upstream verify URL on every value.
Read Buildium properties, units, leases, tenants, balances and bills; manage work orders.
Read Propertyware properties, leases and work orders; add maintenance tasks and comments.
Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. 100 free/day.
Building permits from 18 US cities (NYC, LA, Chicago, Philadelphia...), Canada, Ireland, France.
Storm history by address since 2003, recent storm leads, model-based weather and storm forecasts.
CityScape Condo Rentals MCP
Redfin for-sale, for-rent and sold listings plus full property pages, as structured JSON.
Live permit history + status for any King County, WA address, parcel or permit number. Read-only.
Written fix-and-flip term sheets for 1–4 unit investment purchases, by email. Business-purpose only.
RetailHardHat's MCP server lets an assistant work with an organization's retail sites, projects, budgets, bids, permits and field work, including an interactive operations dashboard. An organization admin grants modules and read-only or guarded-write access; sensitive writes need human review by default.
