Retrieve the mortgage lending summary for a single geographic area (census tract, county, or state) from HMDA data. Returns origination count, denial rate, median loan amount, median interest rate, loan purpose mix, and loan type mix (conventional, FHA, VA, USDA). Source: CFPB/FFIEC HMDA.
AI agents call get_mortgage_summary to retrieve information from loc8n Geographic Data without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
year | integer | — | HMDA data year (default: most recent available) |
geoid | string | Yes | FIPS code — 11 digits for tract, 5 for county, 2 for state |
area_type | string | Yes | Geographic level: tract (or census_tract), county, or state |
Parameters from the server's own tool schema.
This tool retrieves pre-aggregated demographic and financial statistics from a public database (HMDA). It has no side effects—it does not create, modify, delete, or execute any operations. Even though the data concerns mortgages (a financial instrument), the tool itself only reads and reports summary statistics, not moving money or committing financial obligations.
From the tool's definition Tool description uses 'Retrieve' and 'Returns' - it queries and presents aggregate mortgage lending statistics (origination count, denial rate, median loan amount, etc.) from public HMDA data sources (CFPB/FFIEC).
Attacks that exploit this kind of access
Retrieve the mortgage lending summary for a single geographic area (census tract, county, or state) from HMDA data. Returns origination count, denial rate, median loan amount, median interest rate, loan purpose mix, and loan type mix (conventional, FHA, VA, USDA). Source: CFPB/FFIEC HMDA. It is categorised as a Read tool in the loc8n Geographic Data MCP Server, which means it retrieves data without modifying state.
get_mortgage_summary accepts 3 parameters: year, geoid, area_type. Required: geoid, area_type. The full parameter table on this page comes from the server's own tool schema.
Register the loc8n Geographic Data MCP server in PolicyLayer and add a rule for get_mortgage_summary: 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 loc8n Geographic Data. Nothing to install.
get_mortgage_summary 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 get_mortgage_summary 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 get_mortgage_summary. 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.
get_mortgage_summary is provided by the loc8n Geographic Data MCP server (gener8v/gener8v.mcp.geographic-data). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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