Search Redfin listings by location (city, ZIP, neighborhood, or full street address) and optional filters. Resolves the location via Redfin's autocomplete then queries the gis API; full street addresses short-circuit to the single matched home (no gis call). Returns matching properties with price, beds/baths, sqft, year built, address, and the Redfin home URL. resolved_as is 'region' / 'address'. coverage is 'full' (gis indexed this region), 'profile_only' (Redfin has profiles for individual addresses here but search isn't indexed — use redfin_get_by_address per property), or 'none'. result_cap_hit: true signals the gis API returned its ~350 hard cap and more listings exist — narrow with price/beds filters. ZIP queries that fall into Redfin's cross-continent fallback (e.g. ZIP 28746 returning Seattle results) now error loudly. v0.1.0 supports for_sale status only. Read-only; safe to call repeatedly.

Fetch a property's full Redfin record. Provide one of: (a) url — full Redfin homedetails URL or path, resolved via the initialInfo endpoint; (b) property_id alone — resolved internally by following Redfin's /home/ redirect to the canonical listing, then initialInfo; or (c) property_id + listing_id — fastest, skips resolution and goes straight to aboveTheFold. Returns address, beds/baths, sqft, lot_size (sq ft), year built, price, status, days on market, the primary photo URL, plus derived fields (lot_size_acres, price_drop_*, hoa_monthly_usd, last_sold_*, tax_annual, extracted_features). lot_size / lot_size_acres are null (never 0) for condos and listings with no public-records lot. The raw marketing description is OMITTED by default — opt in with include_description: true. Set include_price_history: true to bundle the full price history (and the cross-MCP-normalized events_normalized view) inline; set include_tax_history: true for tax_history. Read-only; safe to call repeatedly.

The signed-in user's favorited homes on redfin.com. Returns address, price, beds/baths, status. Requires the user to be signed in. Read-only; safe to call repeatedly.

The signed-in user's saved searches on redfin.com, derived from the saved-searches page HTML. Each entry is { url, region_segment, display_text }. Requires the user to be signed in. Returns an empty array if the user has none. Read-only; safe to call repeatedly.

Market report for a Redfin region: median list/sold prices, $/sqft, sale-to-list ratio, total homes for sale + sold, all with year-over-year and month-over-month change. Provide either (a) location — free-text we resolve via autocomplete (best with city names; "New York", "Seattle"; neighborhoods typically return empty data), or (b) region_id + region_type directly. property_type defaults to 1 (all). Each metric returns { label, value, unit, yoy_change_fraction, yoy_direction, mom_change_fraction, mom_direction }. Read-only; safe to call repeatedly.

Local-only mortgage payment calculator. Returns a full PITI breakdown (principal + interest, property tax, insurance, HOA, PMI) and total interest over the life of the loan. No network call — fully deterministic, safe to use for scenario comparison without burning a fetch. Provide either down_payment OR down_payment_percent; defaults to 20%. Property tax can be given as property_tax_annual or property_tax_rate (% of home price). PMI applies automatically when LTV > 80% and pmi_rate is provided.

Listing-price events for a property — listings, price changes, pending, sold, etc. Each entry has a date, event description, price, days-on-market at that point, and the data-source attribution (MLS, county records, etc.). Also returns the tax-history series from public records. Provide either url or property_id+listing_id. Read-only; safe to call repeatedly.

Fetch and compare 2 to 25 Redfin properties side-by-side. Provide an array of targets, each either a url or a property_id+listing_id pair. Returns the full per-property record (price, beds/baths, sqft, year built, HOA monthly, last sold, derived price-drop, etc.). For >25 properties or workflows that don't need side-by-side analysis use redfin_bulk_get. Pass include_summary: true for an aligned-by-field summary table (default false to save context — the per-row records carry the same data, so emitting both duplicates ~30% of the response weight). Each record's extracted_features (lake_front, hot_tub, basement, furnished, dock, community) is always included. The raw marketing description is omitted by default — opt in with include_description: true. Errors for individual properties are captured per-row. Calls are concurrent.

First Street Foundation climate risk scores for a property. COVERS: flood (factor 1–10, FEMA zones, 30-year annual chance series), fire (factor 1–10, relative risk, insurance price band, provider count), heat (factor 1–10, cumulative-risk projections at 0/5/10/15/20-year horizons). DOES NOT COVER: landslide. This is the Helene-relevant risk vector in the NC mountains market and many parts of California / the Pacific Northwest. First Street has no landslide product — for that vector check the NC Geological Survey landslide hazard maps (NC-specific) or USGS landslide hazard data (national). Surfaced on every response as not_covered: ['landslide']. Response shape: when First Street data is available, available: true with the risk blocks; when not, { available: false, reason } where reason is one of no_first_street_data, new_construction, address_outside_coverage. Sourced from Redfin's server-rendered homedetails HTML (no clean stingray endpoint exists). Pass a homedetails URL (full or path). When a cluster_id is surfaced, properties with the same value typically share identical climate scores — use that to group N properties and skip redundant fetches.

Fetch climate risk for up to 100 property URLs in a single call. Same per-property shape as redfin_get_climate_risk; output preserves input order. Per-row error capture — properties without First Street data return { available: false, reason } without aborting the batch. Server-side concurrency (~5 fetches in flight). Use this when batching ~60-property workflows where climate risk is the dominant cost. Limitations from the per-property tool apply (no landslide coverage).

Fetch climate risk for a small set of representative URLs in an area, then return their averaged baseline values plus the shared cluster_id when present. Use this as a cheap area-level read BEFORE fanning out a per-property call: if all sample properties agree (same cluster_id, same fire/flood/heat factors), the baseline applies to the whole cluster and N redundant fetches are avoidable. Pass 2–10 URLs you believe represent the area; returns the aggregate plus the per-URL responses for transparency. Limitations of the per-property tool apply (no landslide coverage — note documented in the per-property tool description).

Find nearby rental comparables for a given property: nearby active rental listings with similar bed/bath/sqft, including monthly rent, distance, and the Redfin URL. Useful for estimating what a property could rent for, or for finding rentals near a home you're considering. Inputs are the rent estimate range + lat/lng + propertyId — typically taken from the upstream redfin_get_property (or read from the property page directly).

Solve for the maximum home price you can afford under the standard 28/36 DTI rule. Inputs: monthly income, recurring monthly debts (car/student loans), down payment, interest rate, optional property-tax rate / insurance / HOA / loan term. Output: max home price, binding constraint (front-end vs back-end), and the PITI breakdown at that price. Uses the canonical @chrischall/realty-core affordability engine shared across the realty MCP cohort. No network — pure local math.

The full photo gallery for a Redfin property — every image in mediaBrowserInfo. Each entry returns CDN URLs at multiple sizes (fullscreen, large, medium, lightbox) plus a thumbnail and the photo's caption when set. Provide either url (full Redfin homedetails URL or path; we resolve to IDs via initialInfo) or property_id + listing_id (skip the resolve step). Returns { property_id, listing_id, count, photos }. Off-market or stub listings may return count=0. Read-only; safe to call repeatedly.

Resolve a free-text address (with optional city/state/zip) to its Redfin canonical home URL and home_id. Walks a 3-rung ladder: (1) autocomplete as-typed, (2) autocomplete with suffix expansion (Rd ↔ Road, Ln ↔ Lane, etc.), (3) search fallback (#75) — when autocomplete misses entirely and city/state are provided, resolves the locality to a region, fires a bounded gis search, and fuzzy-matches the input street tokens against returned homes. matched_via is 'autocomplete' or 'search_fallback'. Degrades to resolved: false when every rung misses — does not throw. Address discrepancies across MLS feeds are common (the 109 vs 169 Overlook Point Ln cross-MLS case is a regular occurrence) — companion address_alternates[] field (#42) surfaces conflicts when present. Use this when you have a property address and need its Redfin home_id for follow-on calls (e.g. redfin_get_property). Read-only, no auth required.

Round-trips a small public Redfin URL (/robots.txt) through the fetchproxy bridge and returns diagnostics: the bridge's role (host/peer/null), port, version, the elapsed round-trip time, and a plain-English hint that distinguishes 'bridge never came up' from 'extension not connected' from 'real Redfin-side problem'. Call this when a real Redfin tool times out and you want to know which hop failed. Read-only, no auth required.

Fetch up to 200 Redfin property records in a single tool call. Provide an array of targets, each one of: a url (full Redfin homedetails URL or path with the /home/ segment), a property_id alone (resolved internally by following Redfin's /home/ redirect to the canonical listing), or a property_id+listing_id pair (fastest — skips resolution). Returns the same per-property record shape as redfin_get_property, but without a summary table — use redfin_compare_properties for that. Per-target errors are captured per-row; a single bad ID does not fail the batch. Server-side concurrency, ~6 in flight at a time, with retry-once-on-timeout per row to absorb transient bridge hiccups. The whole call is bounded by an overall hard deadline: a single slow/hung row never wedges the server — when the deadline is reached any unsettled row is returned with status: "pending" (retryable) and a pending count so you can re-run just those targets. Use this when you have a list of saved homes / candidate properties and need the full structured data for every one of them.

Resolve up to 100 free-text street addresses to Redfin canonical home URLs + home_ids in a single tool call. Each input is either a string (full address) or a structured {street, city, state, zip} object. Output preserves input order. Unresolved entries return resolved: false without aborting the batch; a transient bridge failure surfaces a distinct retryable status (timeout/bridge_down/pending) so it is never mistaken for a genuine no-match. Per-row retry-once-on-timeout, server-side concurrency ~6 in flight. The whole call is bounded by an overall hard deadline: a single slow/hung row never wedges the server — unsettled rows come back with status: "pending" and a pending count so you can re-run just those. Use this when you have a list of properties from another system (Compass, MLS, spreadsheet) and need their Redfin handles for follow-on calls — collapses the typical 6-search-call + 15-resolve flow into one trip.

Register (or refresh) an authenticated Redfin session keyed by signed-in account identity. Re-registering the same account_identity updates the existing session rather than creating a duplicate. Returns the session_id to use when routing per-tool calls. The first registered session becomes the default active_session_id. Pass mark_active: true to make the newly-registered session active in the same call.

Switch which registered session subsequent tool calls route through by default. Pass a session_id previously returned by redfin_register_session. Tools that accept an explicit session_id parameter override this default per-call.

Return the full set of registered sessions plus the current active_session_id. When no sessions are registered, sessions is empty and active_session_id is null.