For developers and AI agents
RAD data as an MCP server and an API
The 2,626 RAD public housing conversion records, 6,191 unconverted projects with 2026 RAD rents, current program facts and the debt sizer on this site are available to AI assistants over the Model Context Protocol and to code as JSON. Free, read-only, no key.
Connect an AI assistant
MCP endpoint (Streamable HTTP, stateless JSON-RPC 2.0): https://rad.loans/mcp. Discovery file: /.well-known/mcp.json.
{
"mcpServers": {
"conversion-ledger": {
"url": "https://rad.loans/mcp"
}
}
}Tools and REST equivalents
| MCP tool | What it returns | REST example |
|---|---|---|
search_conversions | RAD public housing conversions by state, housing authority, status, PBV or PBRA, tax credits, FHA insurance and Section 18 blends, newest first. | /api/rad/conversions?state=TX&status=closed&limit=5 |
get_housing_authority | One housing authority: closed, pipeline and remaining units, weighted 2026 RAD rent, and its conversions. | /api/rad/pha?code=IL002 |
get_rad_rents | HUD's 2026 RAD contract rent, PBV and PBRA caps and blend rents for an unconverted project. | /api/rad/rents?pic=AK001000213 |
size_rad_debt | Loan by coverage and loan ratio under FHA 223(f), 221(d)(4), Freddie Mac and Fannie Mae terms, with debt service. | /api/rad/size?units=120&monthly_rent=1100&value=12000000 |
get_rad_program_facts | Permanence, the 555,000 cap, governing notices, contract terms, FHA premium and underwriting, the bond test, each with its source. | /api/rad/facts |
get_financing_quote_link | A link to request a financing quote, optionally prefilled. Submits nothing (MCP only). | MCP only |
OpenAPI 3.1 spec: /openapi.json. Responses are JSON with a citation (source, as-of date, page URL, license).
Bulk downloads
CSV and JSON files of every conversion, every housing authority and every unconverted project, with field definitions, are on About the data. For AI crawlers, /llms.txt summarizes the site and /llms-full.txt lists every page.
License and attribution
HUD and RAD Resource Desk data are public domain. The compilation and computed figures are CC BY 4.0: credit "Data: Conversion Ledger (rad.loans)" with a link. Conversion Ledger is operated by Janover Capital LLC, a commercial mortgage advisor, and is not affiliated with HUD, the RAD Resource Desk or any housing authority. Nothing returned is legal advice or a loan offer.
Questions
Is there a cost or an API key?
No. The MCP server and the JSON API are free and read-only, with no key. Please cite the rad.loans URL that comes back with each result.
Where does the data come from?
Conversions come from HUD's RAD Resource Desk export (downloaded October 31, 2026); rents come from HUD's RAD Contract Rents Look-Up Tool (May 2026). Program facts cite the statute and HUD notices. The server reads the same files as the site's pages.
Can an agent submit a financing request?
No. Nothing is submitted through the server. get_financing_quote_link returns the quote form URL with optional prefill, and the person fills in the form.
Questions or a data error: hello@rad.loans.
Free, no obligation
Get a financing quote
Conversion debt, a RAD/Section 18 blend, a 4% credit and bond execution, or a refinance of a property that converted years ago. Tell us where the deal stands; a senior advisor replies within one business day.
- FHA 223(f), 221(d)(4) and 223(a)(7)
- Fannie Mae and Freddie Mac affordable
- Bank, bond and tax credit executions