"Free Graph and Network Visualization Tools (No API Key Required)" matching MCP servers:

Landlord and rental-property calculators as MCP tools: cash flow, cap rate, DSCR, Airbnb break-even occupancy, rent late fees, lease notice dates, and IRS mileage. Offline and deterministic, with no dependencies.

Verified Singapore property, tax, affordability, salary, and location data for AI agents. 17 MCP tools, x402 micropayments, source provenance on every response. Singapore live now, more markets coming. Categories: Finance, Real Estate, Data, Singapore, x402, Payments, Government Data

Enables access to Zillow real estate data through the Zillow Working API, allowing users to query property information and listings.

Enables AI agents to submit data center colocation requirements to OCOLO, retrieve broker guidance, and check request status without an API key.

MCP server for querying real estate agents registered with CRECI-SP. Enables searching by name, CRECI number, city, or status, retrieving agent details, and getting statistics.

LA County ADU buildability checks, zoning rules, permit trends, and cost estimates — free, no auth.

Enables researchers to turn property-history questions into reviewable evidence dossiers by gathering sources, tracing people and places, linking conclusions to supporting or opposing passages, and exporting portable backups.

MCP server for Spain's official BOE auction portal: search judicial foreclosures, notarial and tax-agency auctions, get consolidated per-auction detail (assets, lots, bids, authority contacts) and computed legal thresholds (art. 671 LEC). Clean JSON, GDPR-safe, no headless browser.

Provides AI agents with real-time access to French real estate transaction data, price per square meter, and property estimates using official open DVF data, with no API key required.

Provides mortgage calculation tools, including monthly payment, amortization schedules, lump sum payments, and extra monthly payments for real estate agents and AI assistants.

An MCP server for accessing the Fotocasa1 API to search real estate listings and retrieve detailed property information in Spain. It supports location suggestions, property filtering by type and price, and fetching specific property details.

Enables access to the Prycd Pricing API for retrieving estimated property values and performing health checks on the API service.

Enables access to Australian real estate data through the Realty In Au API, supporting property listings, agent/agency information, property details, school lookups, and property search with various filters.

Enables users to access the Realty In Ca1 API to search for residential and commercial property listings, view detailed property information, and retrieve neighborhood demographics or statistics. It supports filtering by geographic location, price range, building type, and other real estate characteristics.

The only MCP server with AI guest risk scoring and extortion detection. Search properties, book instantly, protect hosts. 41 tools across 5 layers. Instant API key, 10 free credits.

Enables access to Idealista API for searching and retrieving property listings across Spain, Portugal, and Italy. Supports various property types including homes, apartments, garages, commercial properties, offices, and land with detailed filtering options.

Enables access to the Zillow56 API to search for real estate listings and rental market trends using locations, coordinates, or specific property filters. It also provides comprehensive housing market snapshots and historical data based on the Zillow Home Value Index (ZHVI).

Enables access to UK property listings, price estimates, agent information, and market data through the Zoopla API for searching properties for sale or rent with detailed filters and analytics.

Enables AI agents to query and analyze Israeli real estate data from the Govmap API, including searching for property deals, market trends, and address autocomplete.

MCP server for real estate agents with 12 tools covering floor plans, virtual tours, property descriptions (EN/FR), price estimation, property comparison, staging suggestions, neighborhood analysis, 3D previews, French DPE energy diagnostic, and live DVF transaction data.