Low Risk

search_redfin_properties

Search Redfin's real estate database for property listings by location and criteria. Returns price, street address, number of bedrooms, bathrooms, square footage, lot size, property type, and listing status. Use for residential property research, investment analysis, or market comparison.

Part of the Real Estate MCP — Redfin Listings & Market Comps MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents call search_redfin_properties to retrieve information from Real Estate MCP — Redfin Listings & Market Comps without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though search_redfin_properties only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

nexgendata-apify-real-estate-mcp-server.yaml
tools:
  search_redfin_properties:
    rules:
      - action: allow

See the full Real Estate MCP — Redfin Listings & Market Comps policy for all 2 tools.

Tool Name search_redfin_properties
Category Read
Risk Level Low

Agents calling read-class tools like search_redfin_properties have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

What does the search_redfin_properties tool do? +

Search Redfin's real estate database for property listings by location and criteria. Returns price, street address, number of bedrooms, bathrooms, square footage, lot size, property type, and listing status. Use for residential property research, investment analysis, or market comparison.. It is categorised as a Read tool in the Real Estate MCP — Redfin Listings & Market Comps MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search_redfin_properties? +

Add a rule in your Intercept YAML policy under the tools section for search_redfin_properties. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Real Estate MCP — Redfin Listings & Market Comps MCP server.

What risk level is search_redfin_properties? +

search_redfin_properties is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit search_redfin_properties? +

Yes. Add a rate_limit block to the search_redfin_properties rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block search_redfin_properties completely? +

Set action: deny in the Intercept policy for search_redfin_properties. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides search_redfin_properties? +

search_redfin_properties is provided by the Real Estate MCP — Redfin Listings & Market Comps MCP server (nexgendata-apify/real-estate-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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