redfin-fpx

Redfin via fpx (no MCP)

Redfin fronts www.redfin.com — including every /stingray/... JSON endpoint — with an AWS WAF challenge that blocks plain curl/Node requests regardless of headers. fpx routes the request through the user's own signed-in browser tab (the Transporter extension), which has already cleared the challenge, so the same request succeeds. Most reads are anonymous (no Redfin login needed — just an open tab); the saved-homes and saved-searches endpoints additionally require the tab to be signed in to redfin.com.

This is the same data the redfin_* MCP tools return, reached with one CLI call instead of a running server. Every call rides through the bridge (no bootstrap-then-direct-fetch shortcut) — Redfin validates each request at the session level.

One-time setup

npm install -g @fetchproxy/cli              # provides `fpx`
fpx profile add redfin --domain redfin.com  # only the fetch capability is needed
fpx pair -p redfin                          # prints a pair code → approve in Transporter

Requirements: the Transporter browser extension installed, with an open www.redfin.com tab, and its Chrome Site access allowing redfin.com. Pairing persists — after the first approval every later fpx call reuses it.

Core call

Almost every endpoint is a GET to a /stingray/... path. Redfin prefixes every stingray JSON body with a literal anti-CSRF {}&&, so strip that before piping to jq:

fpx get 'https://www.redfin.com/stingray/api/gis?...' -p redfin \
  | sed -E 's/^\{\}&&//' \
  | jq '.payload.homes'

Every stripped body is an envelope { version, errorMessage, resultCode, payload } — check resultCode == 0 before trusting payload (a nonzero code means Redfin rejected the request; errorMessage explains why).

Ready-to-run request paths (autocomplete, search, property detail, price history, market trends, comparable rentals, climate risk, saved homes) are in references/stingray-endpoints.md. Exhaustive field lists live in the repo at src/tools/*.ts — the endpoints here are compact, live-verified subsets.

The one rule: resolve the location/address first

Redfin search takes numeric region_id + region_type, never place names, and property detail wants a propertyId + listingId pair. Always autocomplete first:

fpx get 'https://www.redfin.com/stingray/do/location-autocomplete?location=Seattle&start=0&count=1&v=2&iss=false&ooa=true&mrs=false' \
  -p redfin | sed -E 's/^\{\}&&//' \
  | jq -r '.payload.sections[] | select(.name=="Places") | .rows[0] | "\(.id)\t\(.name)"'
# 2_16163  Seattle

id is formatted "_". An Addresses section (instead of/alongside Places) means autocomplete resolved a specific home rather than a region — its url embeds the home's canonical /home/ path (use that with the property-detail calls instead of a region search).

Two-step property detail

A homedetails URL only gets you propertyId/listingId via one extra round trip:

1. GET /stingray/api/home/details/initialInfo?path= → {propertyId, listingId, ...}
2. GET /stingray/api/home/details/aboveTheFold?propertyId=…&listingId=…&accessLevel=1 → the actual detail

If you already have property_id + listing_id (e.g. from a search result), skip step 1 and go straight to aboveTheFold (and belowTheFold for price/tax history).

Exit codes (fetch verbs)

• 0 — success (still check the stripped envelope's resultCode).
• 2 — bridge unavailable: extension not connected or pairing pending → run fpx pair -p redfin, confirm a redfin.com tab is open.
• 3 — bot wall: the tab hasn't cleared the AWS WAF challenge → open/refresh a www.redfin.com tab and retry.
• 4 — upstream non-2xx from Redfin.

Notes

• Anonymous reads only work for search/property/market/history/rentals; redfin_get_saved_homes / redfin_get_saved_searches need the bridged tab signed in to redfin.com.
• Climate-risk data is not a JSON endpoint — it's regex-extracted from the server-rendered homedetails HTML (fpx get the page, then grep/extract; see references/stingray-endpoints.md §7 for the field names to look for). There's no clean stingray path for it.
• fpx health -p redfin shows bridge connection state when a call fails.
• This project is developed and maintained by AI (Claude).