datasets_housing_markets_facets
Facet the US housing markets dataset. Returns terms aggregation counts for the housing markets dataset. Facet enum: region_type, state_code, property_type, parent_metro, parent_metro_code, income_vintage, is_latest, period_begin. region_type enum: national, metro, county, city, zip. property_type...
This record as markdown: /tools/crawlora-mcp/datasets-housing-markets-facets.md
What datasets_housing_markets_facets does on Crawlora
AI agents call datasets_housing_markets_facets to retrieve information from Crawlora without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
q | string | — | Full-text query over region name and city, max 256 characters |
facet | string | Yes | Facet enum: region_type, state_code, property_type, parent_metro, parent_metro_code, income_vintage, is_latest, period_begin |
latest | boolean | — | Filter for the most recent period per region and property type |
period | string | — | Exact period start date filter, YYYY-MM-DD |
zip_code | string | — | Exact zip code filter (zip-level rows only), e.g. 60616 |
state_code | string | — | Exact two-letter state code filter, e.g. CA |
region_type | string | — | Region level enum: national, metro, county, city, zip |
max_inventory | integer | — | Maximum active inventory |
min_inventory | integer | — | Minimum active inventory |
property_type | string | — | Property type enum: All Residential, Single Family Residential, Condo/Co-op, Townhouse, Multi-Family (2-4 Unit), Single Units Only |
max_median_dom | number | — | Maximum median days on market |
min_homes_sold | integer | — | Minimum homes sold in the period |
Parameters from the server's own tool schema.
Why datasets_housing_markets_facets is rated Low
Even though datasets_housing_markets_facets only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsHigh parameter count (22 properties)
Attacks that exploit this kind of access
The rule that runs datasets_housing_markets_facets safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crawlora, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For datasets_housing_markets_facets, this is the rule to start with:
datasets_housing_markets_facets is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Crawlora, apply this rule, and every datasets_housing_markets_facets call is checked against it from then on.
Questions about datasets_housing_markets_facets
Facet the US housing markets dataset. Returns terms aggregation counts for the housing markets dataset. Facet enum: region_type, state_code, property_type, parent_metro, parent_metro_code, income_vintage, is_latest, period_begin. region_type enum: national, metro, county, city, zip. property_type enum: All Residential, Single Family Residential, Condo/Co-op, Townhouse, Multi-Family (2-4 Unit), Single Units Only. It is categorised as a Read tool in the Crawlora MCP Server, which means it retrieves data without modifying state.
datasets_housing_markets_facets accepts 12 parameters: q, facet, latest, period, zip_code, state_code, region_type, max_inventory, min_inventory, property_type, max_median_dom, min_homes_sold. Required: facet. The full parameter table on this page comes from the server's own tool schema.
Register the Crawlora MCP server in PolicyLayer and add a rule for datasets_housing_markets_facets: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Crawlora. Nothing to install.
datasets_housing_markets_facets is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the datasets_housing_markets_facets rule in your PolicyLayer 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.
Set action: deny in the PolicyLayer policy for datasets_housing_markets_facets. 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.
datasets_housing_markets_facets is provided by the Crawlora MCP server (crawlora-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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