Turn a street address into canonical DFX object ids, with the match basis and any ambiguity stated. Returns typed objects: a 'property' (national federal programme multifamily) and/or a 'parcel' (Massachusetts assessor and registry layer). These are separate populations that barely overlap, so an address may return one, the other, or both. Free. Start here, then call get_property_record with an id.

Turn an owner, manager, lender or servicer name into canonical DFX entity ids. A name is treated as a blocking key and never as an identity, so all candidates are returned rather than a guess. Free. Person lookup is deliberately not offered.

Given a DFX id from resolve_address, return current state, dated events, ownership and management relationships, debt with maturity dates and maturity basis, recorded sales with consideration plus registry book and page, and the provenance of each. Sales carry BOTH the instrument total and this parcel's allocated share, because a deed repeats its full price on every parcel it covers. Free.

Dated events over US properties and parcels, with provenance and a headline you can show a person. Covers LIHTC compliance period endings (the Year 15 recapitalisation trigger, 11,956 of them), HUD subsidy contract expiries (4,721), scheduled loan maturities (3,422) now national rather than Massachusetts, CMBS distress and workout reporting (167 delinquency flags across 26 states, 128 foreclosures across 22), issued building permits and demolition filings (Boston only), and recorded sales (43,680, 2 states). 8,194 events fall inside the next 548 days, measured 2026-09-09. Filter by event type, state and days ahead. An unrecognised event type is REFUSED with the served vocabulary, never answered with an empty list. Free. PAGING: a full page carries next_cursor. Pass it back as cursor with every other argument unchanged to continue; next_cursor is null on the last page, and that is the only signal the traversal has ended. The counts above are therefore all reachable.

Search the assessor parcel layer with filters instead of one exact address. Filter by state, municipality, assessor land use code, owner-occupancy, tax-exempt status, year built and assessed value range; results carry assessed value, gross building area, assessed value per square foot, the annual tax and the year built. This is the only way to ask a QUESTION of the parcel layer: resolve_address needs an address you already have. Every answer states the true match count alongside the sample, and a search that matches nothing names the filter that emptied it rather than returning a bare empty list. At least one filter is required. Free.

Describe an objective in natural language and get back whether DFX can help, which tool to call, the arguments to call it with, and a free sample of the result. Says no clearly when the answer is no, and records what was asked so unmet demand shapes what DFX builds next. Call this first if you do not know what to ask for.

Poll for what is NEW to you, ordered by when DFX learned it rather than by when it happened. TWO CALLS ARE REQUIRED BEFORE YOU SEE ANYTHING: the first, with no cursor, deliberately returns ZERO events and a starting position; the second, with that cursor, returns what DFX learned in between. If you want rows now rather than a subscription, call search_property_events instead. Filter by event type, state, or a specific property or parcel id. Deterministic and indexed, so it is cheap to call often. Free. HISTORICAL FAMILIES DO FLOW THROUGH HERE. within_days on search_property_events cannot reach the past, but this tool is ordered by when DFX LEARNED a fact, not when the fact happened, so a foreclosure that occurred months ago and was ingested today arrives in today's delta. A distress or sales feed built on this works.

PAID: $1.00 USD per delivered schedule. This is the ONLY priced tool on this server. The other eleven are free, keyless and permanently so. Returns the LOAN rather than the event: for one US state and one forward window, up to 200 loans with maturity date, original principal, lender name, instrument type, origination date and the secured property's address, deduplicated to one row per loan and ordered by maturity. Every maturity_basis is 'confirmed': 19,881 of 19,881 loans carry a date filed with the SEC by a servicer or recorded by HUD, and none is estimated or inferred from a term length. HOW TO GET A PRICE, FREE: call this tool with no authorize argument and no credential. You are not charged and not refused. You receive a real quote for your exact arguments, the price, every field that would arrive, the known limits, and the number of rows your dollar would actually buy, so a filter that would deliver one row is visible before you spend anything. HOW TO ACTUALLY BE CHARGED: resend the identical call with authorize and an X-DFX-Account header holding a funded account key. THIS IS THE ONLY THING ON THIS SERVER THAT NEEDS A CREDENTIAL, and it is the reason the handshake's 'no signup' is about the free tier and not about this tool. To get one, call open_dfx_account on this same server; no human step is needed to open it, and a balance must be funded before it can spend. Everything else here, including the quote itself, needs no account at all. FREE ALTERNATIVE, AND IT IS A REAL ONE: search_property_events with event_type=LOAN_MATURITY_SCHEDULED returns up to 50 maturity EVENTS for the same state, dated and sourced, with no principal, no lender and no instrument. It is also a smaller population: an event has to be resolved to a single building, so a loan secured by several is in the paid tape and not in the free index. Use the free tool for timing, this one for a refinancing conversation.

Creates an economic identity you control, with NO money in it. Free. No human approval, no email, no contract, no sales call. It returns an account key ONCE. DFX stores only its digest and can never show it to you again, so store it before your next call. THE ACCOUNT STARTS AT $0.00 AND CANNOT BUY ANYTHING. DFX mints identity and never credit: a balance moves only when Stripe confirms a payment and DFX re-reads that payment from Stripe. There is no argument anywhere on this server through which you can propose a balance. Call this only if you intend to buy a paid capability. Every discovery, coverage, resolution, property record and event search tool on this server is free, unauthenticated and does not need an account, permanently.

Opens a Stripe payment for exactly one quote, into the account key you present, and returns the hosted payment URL and a payment id. THE AMOUNT IS READ FROM THE QUOTE, SERVER SIDE. There is no field on this tool through which a price can be proposed, raised or lowered. A CARD MUST STILL BE AUTHORIZED. That is the card network's boundary and not a DFX design choice: show the URL and the price to your human, or present your own payment credential to Stripe. Everything either side of that step is callable by a machine. Returning to the success page is NOT a receipt. Poll dfx_payment_status until it reports PAID; that reads the DFX ledger, which advances only on a Stripe event DFX verified and re-read from Stripe. This build collects Stripe TEST payments only. No real money moves.

Reads the DFX payment ledger for one quote. Free. It is the ONLY trustworthy answer to 'did my payment go through'. A browser redirect, a Stripe success page and a client's own belief are all not receipts. This reads DFX rows, which advance only on a Stripe event DFX verified against Stripe's signature and then re-read from api.stripe.com. AWAITING_PAYMENT means keep polling. PAID means your balance is funded and you may now repeat the paid call with authorize.

Measured coverage, served sources, object types and the known gaps stated plainly, including where geography is a single state and where nothing carries a calibrated probability. Call this before concluding that an empty result means an absent market. Call it with NO arguments for the full grid: every event family, every state, measured. Call it with state and/or event_type for a direct verdict on that one slice (COVERED, NOT_COVERED or UNKNOWN) with the basis it was decided on, which is one small answer instead of a grid to parse. Free, and it queries no data: the verdict comes from a coverage registry, so a NOT_COVERED is measured rather than inferred from an empty search.