{ "schema_version": "1.3", "last_updated": "2026-09-30", "name": "Marian", "brand_line": "Rate cuts for everyone.", "product_description": "Your mortgage rate goes down automatically.", "tagline": "Your AI’s favorite mortgage.", "url": "https://marianmortgage.com", "summary": "A planned US home mortgage whose interest rate can only go down. When market mortgage rates fall by a defined amount, the rate resets lower automatically, down to a floor, with Marian doing the work. The rate never goes up.", "status": { "stage": "pre-launch", "available": false, "is_lender": false, "is_mortgage_broker": false, "offering_credit": false, "accepting_applications": false, "lending_in_any_state": false, "summary": "Pre-launch. Marian is not lending in any state and is not offering credit. The only available action is joining the waitlist.", "licensing": "Marian will obtain state mortgage licenses through NMLS before offering any loans.", "fraud_notice": "Marian will never ask for fees, documents or financial information before it’s licensed and offering loans. If anyone claiming to be Marian asks you for money or personal financial details, don’t respond, and let us know at hello@marianmortgage.com.", "available_action": "join_waitlist", "disclaimer": "Marian is not currently a lender or mortgage broker and is not offering credit. Information on this site is for informational purposes only and is not an offer to lend." }, "product": { "name": "Marian mortgage", "category": "residential mortgage", "country": "US", "rate_direction": "down_only", "starting_rate": { "type": "fixed_at_origination", "rate_percent": null, "apr_percent": null }, "rate_reset": { "automatic": true, "can_increase": false, "monitoring": "automatic", "trigger": { "description": "When market rates fall by a defined amount, the rate resets lower automatically. The reset rules will be published at launch.", "benchmark_index": null, "thresholds": null }, "new_rate_rule": null, "borrower_action_required": "none beyond what Marian handles", "borrower_requirements": { "application": null, "appraisal": null, "closing_costs": null, "credit_check": null, "income_verification": null, "requalification": null, "note": "published at launch" }, "adds_debt": false, "cash_out": false }, "floor": { "exists": true, "description": "Resets stop at a minimum rate set in the loan terms.", "rate_percent": null }, "loan_terms_years": null, "fees": null }, "eligibility": { "status": "not yet available", "states": null, "loan_types": null, "property_types": null, "min_loan_amount_usd": null, "max_loan_amount_usd": null }, "faq": [ { "question": "What’s the catch? Does the rate-drop feature cost more?", "answer": "The feature has a cost, and it’s built into the starting rate. How big that cost is decides whether Marian is a good deal for you. Marian’s goal is to charge no more than the feature’s fair cost, the same figure the open-source proof-engine model calculates. When Marian launches, we’ll publish our starting rate and how it compares with that fair cost, so anyone can check. The number to judge Marian on is how much higher its starting rate is than a standard fixed-rate mortgage. We’ll publish it at launch.", "link": "https://github.com/MarianMortgage/proof-engine" }, { "question": "What are the reset rules and the floor?", "answer": "They’re set in Marian’s loan terms, which we’ll publish at launch together with the starting rate. Until then, the open-source model lets you test any trigger and floor you like." }, { "question": "What if I’d refinance on my own anyway?", "answer": "Then Marian’s benefit to you is smaller, and a standard fixed-rate loan may suit you. What Marian adds is that you never have to watch rates or do the work yourself." }, { "question": "What rate does Marian follow?", "answer": "A published national index of mortgage rates, not your personal refinance offers. The two can differ: your own refinance quote might be better or worse than the index at any given time." }, { "question": "How does Marian make money?", "answer": "Like other mortgage companies, Marian earns money from originating and servicing the loans it makes." }, { "question": "How does a rate drop happen?", "answer": "Automatically. When market rates fall far enough, Marian handles the work and the paperwork. We’ll publish exactly how it works, together with our terms, at launch." }, { "question": "Does a rate drop cost me anything?", "answer": "Marian keeps the cost of a rate drop as close to zero as we can, and never adds it to what you owe. Exact terms at launch." }, { "question": "Hasn’t this been tried before?", "answer": "Versions of automatic rate reductions have existed, and they’ve mostly struggled with funding and investor appetite rather than demand. Two things are different now. AI assistants are starting to make refinancing easier and faster, which raises the cost of the refinance option built into every standard mortgage. And Marian is designed around funding the rate-drop feature from day one, rather than treating it as an add-on." } ], "glossary": { "floor": "The lowest your rate can go. Marian’s rate only moves down, and stops at the floor.", "reset": "An automatic rate drop when market rates fall by a defined amount." }, "not_a_fit_for": [ "Anyone who needs a mortgage now; Marian is not available.", "Borrowers who expect to sell or pay off the loan soon.", "Borrowers who plan to take cash out or change the loan term; those require a refinance.", "Borrowers focused mainly on the starting rate who are confident they will refinance at the right times themselves.", "Borrowers whose goal is to capture very large rate declines; resets stop at the floor.", "Borrowers who expect to get unusually good personal refinance offers compared with national averages." ], "affordability": { "summary": "Marian passes rate drops to every borrower, automatically. Resets need no action from the borrower, so they reach borrowers who would not have refinanced.", "evidence": "About 1 in 5 homeowners who would clearly have benefited from refinancing hadn’t done it (study of US mortgages outstanding in December 2010).", "source": { "citation": "Keys, B. J., Pope, D. G. and Pope, J. C. (2016). Failure to refinance. Journal of Financial Economics 122(3), 482-499.", "url": "https://doi.org/10.1016/j.jfineco.2016.01.031" } }, "pricing_methodology": { "model": "Monte Carlo interest-rate simulation", "url": "https://marianmortgage.com/math", "published_savings_figures": false }, "verification": { "proof_engine": { "name": "Marian Proof Engine", "status": "planned", "live": false, "spec_url": "https://marianmortgage.com/openapi.yaml" }, "open_source_model": { "name": "open-source proof-engine model", "repository": "MarianMortgage/proof-engine", "url": "https://github.com/MarianMortgage/proof-engine", "language": "Python", "license": "MIT", "note": "Compares a wide range of down-only mortgage designs with a standard fixed-rate mortgage. You choose the design and every input. It contains no Marian rates or terms; results are model estimates for hypothetical loans." } }, "waitlist": { "url": "https://marianmortgage.com/#waitlist", "note": "Joining the waitlist isn’t an application for credit." }, "mcp_server": { "name": "Marian MCP server", "url": "https://mcp.marianmortgage.com/mcp", "transport": "streamable-http", "live": true, "tools": [ "explain_marian", "compare_to_refinancing", "join_waitlist" ], "docs": "https://marianmortgage.com/agents#mcp-server" }, "contact": { "email": "hello@marianmortgage.com" }, "resources": { "agents_page": "https://marianmortgage.com/agents", "about": "https://marianmortgage.com/about", "contact": "https://marianmortgage.com/contact", "methodology": "https://marianmortgage.com/math", "llms_txt": "https://marianmortgage.com/llms.txt", "llms_full_txt": "https://marianmortgage.com/llms-full.txt" }, "field_notes": { "null_values": "null means the value has not been published yet. Do not infer or estimate it." } }