Open Data

HUD Housing Data MCP Server

Chat with AI and run tools instantly — no API key or third-party login needed.

Let AI agents retrieve HUD FMR, income limits, MTSP limits, and CHAS affordability data for state, county, metro, city, and housing-policy research workflows.

Best forHousing analystspolicy researcherspublic-sectorlenders

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Compare rent and income limits

Get the latest HUD Fair Market Rent and standard income limits for California, then summarize what the rent and eligibility thresholds say about affordability.

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6 tools
Agent guide included

No API key or third-party login needed. Chat with AI and run tools instantly.

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What you can do with HUD Housing Data

Built for

Housing analysts, policy researchers, public-sector teams, lenders, real-estate operators, and AI agents that need sourced HUD rent, income-limit, and affordability evidence

Example workflows

Compare rent and income limits

Combines the two highest-demand HUD data workflows in one state-level answer.

Try this

Get the latest HUD Fair Market Rent and standard income limits for California, then summarize what the rent and eligibility thresholds say about affordability.

Research a county

Uses HUD geography lookup before asking for entity-level income-limit data.

Try this

Find Alameda County's HUD geography identifier, then retrieve MTSP income limits and report the area name, year, median income, and household-size limits.

Analyze CHAS affordability

Turns CHAS special-tabulation fields into a plain-language affordability summary.

Try this

Use HUD CHAS data for Alameda County, California and summarize the latest housing problems, severe housing problems, and cost-burden fields with the geoname and year.

Find geography ids

Helps agents avoid confusing HUD's county fips_code field with CHAS entity ids.

Try this

List HUD county geographies for California and explain which field to use as the entity id for FMR, standard income-limit, and MTSP income-limit calls.

Context to know first

What HUD data can AI agents retrieve?

Agents can retrieve HUD Fair Market Rents, standard income limits, MTSP income limits, FMR geography indexes, CHAS entity indexes, and CHAS housing affordability data.

What is HUD FMR data used for?

Fair Market Rent data gives HUD-determined rent levels by bedroom count for states, counties, towns, and metro areas. Analysts use it for voucher payment standards, rent benchmarks, and housing-market context.

Can agents look up HUD income limits by county?

Yes. Agents first list HUD county geographies and then use the returned fips_code as the entity id for standard income-limit or MTSP income-limit requests.

Related editorial

HUD FMR and Income Limits with AI

How AI agents can use HUD FMR, income limits, MTSP limits, and CHAS data for housing research workflows.

Read article

AI Skill
SKILL.md

Domain knowledge for HUD Housing Data — workflow patterns, data models, and gotchas for your AI agent.

HUD Housing Data

HUD provides Fair Market Rents (FMR), standard and MTSP income limits, and CHAS housing affordability data. FMR and standard income limits are available by state or HUD geography entity. CHAS is available by national, state, county, minor civil division, and place summary levels. MCPBundles supplies the HUD User API token server-side, so users can enable the server without entering a HUD credential. 60 queries/min rate limit.

Data Model

  • Fair Market Rents (FMR) — annual HUD-determined rent levels by bedroom count for each metropolitan area, county, town, and state. Used for Section 8 voucher payment standards.
  • Income Limits — Very Low (50% AMI), Extremely Low (30% AMI), Low (80% AMI), and MTSP thresholds by household size and area.
  • CHAS data — Comprehensive Housing Affordability Strategy data showing housing problems, cost burden, and affordability by income level, household type, and race/ethnicity at state, county, and city levels (Census ACS special tabulations).

Gotchas

  • Rate limit: 60 queries per minute.
  • FMR/IL geographies: Find county, town, and metro entity IDs before asking for entity-level rent or income-limit data.
  • County entity IDs: FMR/IL county lookup rows expose the entity identifier as fips_code; use that value as entity_id for FMR, standard income-limit, and MTSP income-limit calls.
  • CHAS geographies: Use numeric Census state FIPS codes and CHAS entity IDs, not USPS state abbreviations.
  • FMR data years: Updated annually, typically available October for the following fiscal year.
  • Income Limits 2025: HUD updated some FIPS codes; use updated=2025 when listing counties or metro areas for 2025 Income Limits work.
  • Attribution: This product uses the HUD User Data API but is not endorsed or certified by HUD User.

Where the data comes from

Tool calls query HUD User API endpoints in real time, preserve HUD geography identifiers, and return source rows for agent synthesis. MCPBundles injects the platform HUD bearer token server-side and does not ask users for HUD credentials.

HUD User Data API
U.S. Department of Housing and Urban Development, Office of Policy Development and Research

Machine-readable HUD datasets for Fair Market Rents, income limits, MTSP income limits, geography indexes, and CHAS affordability data.

Source updated: HUD-published dataset updates; FMR and income limits are generally annual.
We refresh: Real-time (queried from the HUD User Data API per request)
JSON HTTP API
United States HUD rent benchmarks, income-limit areas, and CHAS affordability summary levels where available through the HUD User Data API.
HUD User API Terms of Service
This product uses the HUD User Data API but is not endorsed or certified by HUD User.
HUD User API responses are source data for rent, eligibility, and affordability context. They do not replace local program rules, current listings, underwriting, or policy review.
HUD User may limit access to 60 queries per minute and may block access that exceeds or circumvents API limits.

Source availability last verified 2026-05-07.

Tools in this Server (6)

Hud Get Chas

Get CHAS housing affordability data from HUD. Use summary_level=1 for national data, summary_level=2 with state_id for state data, or summary_level=3/...

Hud Get Fmr

Get HUD Fair Market Rent data. Provide exactly one lookup: state for statewide data, or entity_id from hud_list_fmr_geographies for a county, town, or...

Hud Get Income Limits

Get HUD standard income limits by state or entity id. Provide exactly one lookup: state for statewide limits, or entity_id from hud_list_fmr_geographi...

Hud Get Mtsp Income Limits

Get HUD Multifamily Tax Subsidy Project income limits for one county, town, or metro entity. Use hud_list_fmr_geographies first when the prompt gives ...

Hud List Chas Entities

List CHAS entity ids for a state. Use entity_type=counties, cities, or mcds with a numeric Census state FIPS code. Use the returned entityId values in...

Hud List Fmr Geographies

List HUD geography identifiers used by Fair Market Rent and Income Limits tools. Use geography_type=states for state codes, geography_type=counties wi...

Frequently Asked Questions

What is the HUD Housing Data MCP server?

HUD User API providing Fair Market Rents (FMR), standard and MTSP income limits, and CHAS housing affordability data. It provides 6 tools that AI agents can use through the Model Context Protocol (MCP).

How do I connect HUD Housing Data to my AI agent?

Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/hud-housing. Authentication is handled automatically.

How many tools does HUD Housing Data provide?

HUD Housing Data provides 6 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.

What authentication does HUD Housing Data require?

HUD Housing Data uses open data APIs — no authentication required.

What HUD data can AI agents retrieve?

Agents can retrieve HUD Fair Market Rents, standard income limits, MTSP income limits, FMR geography indexes, CHAS entity indexes, and CHAS housing affordability data.

What is HUD FMR data used for?

Fair Market Rent data gives HUD-determined rent levels by bedroom count for states, counties, towns, and metro areas. Analysts use it for voucher payment standards, rent benchmarks, and housing-market context.

Can agents look up HUD income limits by county?

Yes. Agents first list HUD county geographies and then use the returned fips_code as the entity id for standard income-limit or MTSP income-limit requests.

What is CHAS housing data?

CHAS is HUD's Comprehensive Housing Affordability Strategy data from Census ACS special tabulations. It covers income bands, housing problems, severe housing problems, and cost burden.

Does HUD data replace local housing due diligence?

No. It is authoritative source data for rent, eligibility, and affordability context, but local policy, current listings, program rules, and underwriting decisions still need review.

Setup Instructions

Connect HUD Housing Data to any MCP client in minutes

https://mcp.mcpbundles.com/bundle/hud-housing

One-click install:

Install on Claude.aiInstall for organization (admins)

The link prefills the Add custom connector dialog — you still review the values and click Add, then Connect to complete OAuth.

Or add manually

  1. Open claude.ai → Settings → Connectors.
  2. Click the + button and choose Add custom connector.
  3. Set Name to HUD Housing Data and paste the MCP URL into Remote MCP server URL.
  4. Click Add. HUD Housing Data will appear under Not connected — select it and click Connect to complete OAuth.
Name: HUD Housing Data
Remote MCP server URL: https://mcp.mcpbundles.com/bundle/hud-housing
Authentication: OAuth

Custom connectors at claude.ai require a paid Claude plan (Pro, Max, Team, or Enterprise).

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Try HUD Housing Data now

No API key or third-party login required. Chat with AI and run tools instantly.