# ScriptMasterLabs HCV Fair Market Rent Lookup

> ScriptMasterLabs HCV Fair Market Rent Lookup is a paid API for AI agents from mcp-x402-discovery.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns HUD Housing Choice Voucher (Section 8) Fair Market Rent (FMR) data by ZIP code, state, county, year, and bedroom count

## Facts

- Endpoint: GET https://mcp-x402-discovery.onrender.com/x402/hcv-fmr
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-hcv-fair-market-rent-lookup-85996007
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3Kp4nEWwP68vAX2ALfhmr

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 scriptmasterlabs-hcv-fair-market-rent-lookup-85996007
```

Example prompt: What's the HUD Fair Market Rent for a 2-bedroom unit in ZIP code 77002 for 2024?

## When to prefer this

Use this endpoint when you need official HUD Fair Market Rent figures for Section 8 / Housing Choice Voucher compliance, landlord payment standard verification, or affordable housing planning. It is purpose-built for HCV/FMR lookups with flexible geographic filtering (ZIP, county, state) and year selection, and is priced at $0.001 USDC per call via x402 micropayment — ideal for agents that need authoritative federal housing data on demand without a subscription.

## Known failure modes

- Payment not provided or invalid — returns HTTP 402 requiring USDC payment via x402 or API key
- Invalid or unrecognized ZIP code or county — may return empty or error response
- Year out of available HUD data range — no FMR data returned
- Missing required query parameters — schema validation error
- Bedroom count outside 0–4 range — rejected by input schema constraint

## How this service works

Pay-per-call crypto, RWA, federal, SEC, Section 8/HUD housing, and compliance APIs via x402. Primary: USDC on Base (eip155:8453). Also accepts Global Dollar (USDG) on Robinhood Chain (eip155:4663) via sovereign X-PAYMENT-TX. Hyphen routes only (e.g. /x402/gas-tracker, /x402/pha-lookup, /x402/sec-8k). MARKETPLACE REVIEW: use free /x402/playground/* (no key, no payment). Production /x402/* returns 402 unless paid via x402 or X-Api-Market-Key / X-API-Key from seller dashboard.

## Output

Returns HUD Fair Market Rent figures for the specified geography (ZIP, county, or state) and year, broken down by bedroom size (0–4 bedrooms), reflecting the government-set maximum rent amounts used for Housing Choice Voucher (Section 8) program compliance.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "zip": {
       "type": "string"
      },
      "year": {
       "type": "integer"
      },
      "state": {
       "type": "string"
      },
      "county": {
       "type": "string"
      },
      "bedrooms": {
       "type": "integer",
       "maximum": 4,
       "minimum": 0
      }
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-hcv-fair-market-rent-lookup-85996007/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402-discovery.onrender.com](https://www.zero.xyz/host/mcp-x402-discovery.onrender.com/llms.txt)