# HUD Income Limits by County or State

> HUD Income Limits by County or State is a paid API for AI agents from 2s.io, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-15).

Returns HUD program-eligibility income thresholds (extremely-low, very-low, and low) by household size for a US county or state, derived from Area Median Family Income

## Facts

- Endpoint: GET https://2s.io/api/gov/income-limits
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hud-income-limits-by-county-or-state-18847c33
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fHKPQtqVs1zSN88JE1jOX

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability hud-income-limits-by-county-or-state-18847c33
```

Example prompt: What are the HUD income limits for a household of 4 in Cook County, Illinois (FIPS 17031) for the latest year — give me the extremely-low, very-low, and low thresholds?

## When to prefer this

Use this endpoint when you need official US government HUD income eligibility thresholds for housing assistance programs, broken down by household size and AMI tier, for a specific county (by FIPS) or state. Prefer this over generic income data sources when you need program-specific HUD definitions (30/50/80% AMI) rather than raw census income statistics.

## Known failure modes

- Invalid or non-existent FIPS code returns an error or empty result
- State abbreviation not recognized returns a validation error
- Year outside HUD's available data range returns an error
- Neither fips nor state provided results in a missing-parameter error
- HUD upstream API unavailability causes a 5xx or timeout response

## How this service works

HUD Income Limits (IL) for a US county or state — the program-eligibility thresholds for HUD assistance, derived from Area Median Family Income: extremely-low (30% AMI), very-low (50% AMI), and low (80% AMI) income limits for household sizes 1–8, plus the area median income. Look up by 5-digit county FIPS or by 2-letter state. Optional year (defaults to latest). The raw HUD il30/il50/il80 codes are reshaped into clear nested limits by household size. Source: HUD USER Income Limits API (US public domain).

## Output

A nested JSON object with income limits broken down by household sizes 1–8 for three HUD tiers: extremely-low (30% AMI), very-low (50% AMI), and low (80% AMI), plus the area median family income for the requested county or state and year.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "required": [],
     "properties": {
      "fips": {
       "type": "string",
       "description": "5-digit US county FIPS, e.g. 06037."
      },
      "year": {
       "type": "string",
       "description": "Income-limit year, e.g. 2026. Omit for latest."
      },
      "state": {
       "type": "string",
       "description": "2-letter US state abbreviation, e.g. CA."
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hud-income-limits-by-county-or-state-18847c33/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 2s.io](https://www.zero.xyz/host/2s.io/llms.txt)