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chrischall

compass-mcp

by chrischall

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault

No arguments

Instructions

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Capabilities

Features and capabilities supported by this server

Protocol revision2025-11-25

CapabilityDetails
tools
{
  "listChanged": true
}

Tools

Functions exposed to the LLM to take actions

NameDescription
compass_search_propertiesA

Search Compass listings by location (city, ZIP, neighborhood) and optional filters. Resolves free-text via slugification into Compass's URL routing, then fetches the SSR search-results page and extracts the embedded listings array. Compass server-renders ~41 listings into that page (its num), and total_items reports the full market count. PAGINATION (issue #87): Compass no longer paginates the SSR search via any URL — /page-N/, ?page=N, and ?start=N all canonicalize back to page 1 and return the identical listings, so only the first SSR page (~41 listings) is reachable through this primitive. offset is honored WITHIN that page, and next_offset is emitted only when more listings remain within it — it is never a false cursor that re-fetches page 1. TO REACH BEYOND THE FIRST PAGE, narrow with price_min / price_max / beds_min/beds_max to bucket the result set into <~41-listing bands (price-banding), then search each band. Returns each matching listing's address, price, beds/baths, sqft, lat/lng, the Compass homedetails URL (_lid/ form, content-addressed by listing_id_sha), and the stable _pid/ URL via property_url and the surfaced pid field. The per-listing primary_photo_url / primary_thumbnail_url are omitted in the default compact view (they are Compass CDN URLs a model cannot see); pass view: "full" to get them, or compass_get_property_photos for the whole gallery. USE pid/_pid/ FOR LONG-LIVED REFERENCES (trackers, sheets, bookmarks) — sha-based _lid/ URLs change when a property is delisted and relisted. Use the sha-based URL to fetch the current listing record. Read-only; safe to call repeatedly.

compass_get_propertyA

Fetch a property's full Compass record. Pass either url (a full Compass homedetails URL or path from a compass_search_properties result) or listing_id_sha alone — when only the sha is supplied, the tool fetches /listing//view, which redirects to the canonical /homedetails//_lid/ page. Returns address, neighborhood, beds/baths, sqft, lot size (lot_size_sqft plus the derived lot_size_acres = round(sqft / 43560, 2), null — never 0 — for condos / missing lots), price + price-per-sqft, monthly charges, MLS status, amenities, schools, parcel number, and the canonical Compass URL. Also returns extracted_features (lake_front, hot_tub, basement, furnished, dock, community) keyword-parsed from the description.

DESCRIPTION HANDLING: The raw description (Compass marketing copy) is omitted by default — pass include_description: true to keep it. extracted_features is always populated and usually sufficient.

URL FORMS: Compass exposes two URL shapes for a listing. _lid/ (content-addressed by listing_id_sha) — what this tool fetches and what url returns — is the form to use for reading the current listing record. _pid/ (opaque short ID, in property_url and the surfaced pid field) is stable across re-listings and is the right choice for any long-lived reference (trackers, sheets, bookmarks); sha-based URLs go stale when a property is delisted and relisted. Read-only; safe to call repeatedly.

compass_get_saved_homesA

Not yet supported — Compass renders /overview/favorites via an auth-scoped GraphQL we have not yet identified. Throws a clear error explaining the limitation.

compass_get_saved_searchesA

Not yet supported — Compass renders saved searches via an auth-scoped GraphQL we have not yet identified. Throws a clear error explaining the limitation.

compass_calculate_mortgageA

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.

compass_get_price_historyA

Full listing history for a Compass property — Listed / Sold / Pending / Price Change / Delisted events with date, price, and MLS attribution. Returns three arrays: events covers this listing's events, history aggregates events from prior listings of the same property, and events_normalized merges both into a shared cross-MCP schema ({date, type, price?, price_change_pct?, source_mls?} with a fixed type enum: Listed | PriceChange | Pending | Contingent | Sold | Withdrawn | Relisted | Delisted). Pass either url (the full Compass homedetails URL or path) or listing_id_sha alone — sha-only calls fetch /listing//view, which redirects to the homedetails page. Note: most of this data is already returned inline on compass_get_property (the events[] / history[] arrays live on the same listing record); call this tool only when you want the merged + normalized timeline. Read-only; safe to call repeatedly.

compass_compare_propertiesA

Fetch 2 or more Compass properties and align their facts side-by-side. Each target may supply url (a full Compass homedetails URL or path) or listing_id_sha alone — sha-only targets fetch /listing//view, which redirects to the homedetails page. Returns the full per-property record per row (with extracted_features populated). Per-target errors are captured per-row — one bad target will not fail the whole call; a failed row carries status = error_kind (timeout / bridge_down / protocol / other), retryable and error, and the envelope reports count / ok / errored. Calls are concurrent, and the whole call is bounded by an overall deadline: any row still unsettled when it is reached comes back as { status: "pending", retryable: true, error } with a top-level pending count — re-run just those targets. The raw description is omitted from each row by default — pass include_description: true to keep it. The redundant summary table is also opt-in via include_summary: true — by default only results[] is returned, which already carries every fact.

compass_calculate_affordabilityA

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

compass_get_property_photosA

The full photo gallery for a Compass listing — every image in listing.media[]. Each entry returns the original CDN URL plus a thumbnail URL and pixel dimensions. Pass either url (the full Compass homedetails URL or path) or listing_id_sha alone — sha-only calls fetch /listing//view, which redirects to the homedetails page. By default only photos (category 0) are returned; set include_all_categories: true to also include floorplans and other media. Returns { listing_id_sha, count, photos }. Read-only; safe to call repeatedly.

compass_healthcheckA

Round-trips a small public www.compass.com URL (/robots.txt) through ContextMint Bridge (your signed-in browser tab) and returns diagnostics: the bridge's role (host/peer/null), port, version, the extension link (linked / pair pending / not attached / never answered), the elapsed round-trip time, and a plain-English hint distinguishing 'bridge never came up' from 'extension not connected' from 'this browser can't serve a capability' from 'real www.compass.com-side problem'. Read-only, no auth required. Call this when a real tool fails and you want to know which hop broke.

compass_get_by_addressA

Resolve a free-text street address to a Compass listing's canonical URL and identifiers in one call. Walks three rungs: first the structured typeahead POST /api/v3/omnisuggest/autocomplete (the primary rung — Compass's address-suggest API, which routes around the AWS WAF that 403s the SSR free-text path, issues #78/#79), then /homes-for-sale/?q=<address> (the free-text rung) and — when those return no verified match — a slug-based search at /homes-for-sale/<city-state-or-zip>/ (the search-fallback rung, issue #71). Each candidate is verified against the query (case + street-type abbreviation normalization, then whole-token equality, issue #45) before being accepted. Returns { url, listing_id_sha, pid, address, resolved, matched_via } where matched_via is "typeahead", "freetext", or "search_fallback" so callers can see which rung found the match. When no rung matches, returns { resolved: false, error: "no listing matched" } rather than leaking a wrong URL. When the lookup was blocked by a sign-in / AWS WAF challenge instead, it returns { resolved: false, status: "auth_required", error, hint } — NOT a miss: sign in to compass.com in the browser and retry. The url is the stable _pid/ form when Compass provides a navigationPageLink (preferred for trackers/bookmarks — sha URLs go stale on relisting), falling back to the _lid/ form otherwise. Read-only; safe to call repeatedly.

compass_bulk_getA

Fetch up to 200 Compass listings in a single call. Returns one structured row per input target (no side-by-side summary table — use compass_compare_properties for that). Each row is either { listing_id_sha, url, status: "ok", property } on success or { listing_id_sha, url, status, error_kind, retryable, error } on failure (status = error_kind) — one bad target never fails the whole call. retryable: true (a bridge timeout after one retry, an unreachable bridge_down, issue #73) is NOT a missing listing, so retry it (a cold bridge usually succeeds on the second call) rather than concluding Compass has no record; protocol / other are real misses. Targets accept the same url / listing_id_sha shape as compass_get_property. Calls fan out concurrently. The whole call is bounded by an overall deadline: a slow or hung row never wedges it — any row still unsettled when the deadline is reached comes back as { status: "pending", retryable: true, error } alongside a top-level pending count, so re-run just those targets. The envelope also reports count / ok / errored. extracted_features is populated per row. The raw description is omitted by default — pass include_description: true to keep it.

compass_resolve_addressesA

Resolve up to 100 street addresses to Compass listing URLs in a single call. Returns one row per input, either { resolved: true, url, listing_id_sha, pid, address, matched_via }, { resolved: false, error, query } for a genuine no-match, or — when the bridge timed out / was unreachable (issue #85) — { resolved: false, status: "timeout" | "bridge_down", retryable: true, error, query }. A status row is NOT a miss: the lookup never completed, so retry it (a cold bridge usually succeeds on the second call) rather than concluding Compass has no listing. A row with status: "auth_required" (plus error and hint) means the browser session was signed out or stuck on an AWS WAF challenge: sign in to compass.com, then retry. Each row walks the same three rungs as compass_get_by_address — first the structured typeahead POST /api/v3/omnisuggest/autocomplete (the primary rung that routes around the AWS WAF, issues #78/#79), then /homes-for-sale/?q=<address> (freetext), then /homes-for-sale/<locality-slug>/ (search_fallback, issue #71) — and verifies candidates against the same whole-token address-match policy (#45). The matched_via field on each resolved row indicates which rung found it. Compass's search degrades into far-away top hits when the local market has no match, and bulk amplifies the corruption surface, so a miss returns resolved: false with no URL rather than leaking the wrong property. Calls fan out concurrently server-side, and the whole call is bounded by an overall deadline: any row still unsettled when it is reached comes back as { resolved: false, status: "pending", retryable: true, error, query } with a top-level pending count — that is NOT a miss, so re-run just those addresses. Read-only; safe to call repeatedly.

compass_register_sessionA

Record (or refresh) which Compass account the signed-in session belongs to, keyed by account_identity. Re-registering the same identity updates the existing entry. Returns a session_id; pass mark_active: true to mark it as the current account in the same call. The registry is a label only: it does not change which Compass account requests use. Every compass tool call goes through whichever browser tab the ContextMint Bridge extension is signed into; to read a different account, sign that tab into it.

compass_set_active_sessionA

Mark a previously registered session_id as the current account label, for your own bookkeeping across a conversation. The registry is a label only: it does not change which Compass account requests use. Every compass tool call goes through whichever browser tab the ContextMint Bridge extension is signed into; to read a different account, sign that tab into it.

compass_get_session_contextA

List every registered account label plus the current active_session_id. When none are registered, sessions is empty and active_session_id is null. The registry is a label only: it does not change which Compass account requests use. Every compass tool call goes through whichever browser tab the ContextMint Bridge extension is signed into; to read a different account, sign that tab into it.

compass_get_comparable_rentalsA

Surface nearby rental listings for a Compass property — useful for evaluating STR (short-term-rental) viability in vacation markets. Lifts the target's city/state/zip from the homedetails page, then searches Compass's type-rental/ filter in the same locality and returns each rental's address, monthly price (in price_formatted), beds/baths, sqft, and the Compass URL. Honest-by-default: when no rentals come back, rentals: [] with the target locality preserved so the caller can decide to widen. Read-only; safe to call repeatedly.

compass_get_agent_listingsA

Fetch the listings represented by a Compass agent from their profile page (/agents//). Pass either slug (e.g. "paige-mcguirk") or profile_url (a full https://www.compass.com/agents// URL — both forms are accepted). Returns { agent: {name, slug}, active_listings: [...] }, where each active listing carries the SAME normalized fields as compass_get_property (address, beds/baths, sqft, lot size, price + price-per-sqft, MLS status, the canonical Compass URL + stable pid, extracted_features, etc.).

CLOSED DEALS: the agent's sold/closed deals are opt-in — pass include_closed: true to add a closed_deals array (same normalized shape). Omitted by default to keep the payload lean.

CHAINING: the agent slug is surfaced on each property's listing_agent.profile_slug in compass_get_property results (compass_search_properties results don't carry the listing agent), so you can go property → agent → their other listings. Read-only; safe to call repeatedly.

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

TDQS

A4.1/5.0

Scored across 18 tools

Disambiguation4/5

Most tools are clearly distinct (single vs. bulk variants, compare vs. bulk_get, mortgage vs. affordability), and descriptions explicitly explain boundaries. The only soft overlap is between compass_register_session and compass_set_active_session, plus the two 'saved' stubs, but descriptions disambiguate well.

Naming Consistency4/5

Nearly all tools follow compass_verb_noun (get_property, search_properties, compare_properties, resolve_addresses), which is predictable. Minor deviations like compass_bulk_get (adjective-verb) and compass_healthcheck (single noun) slightly break the pattern but remain readable.

Tool Count4/5

18 tools is on the heavier side but each maps to a real capability (search, fetch, bulk, compare, photos, history, agent, rentals, financial calcs, sessions, diagnostics). The two always-erroring 'saved' stubs are the main dead weight, keeping this below a perfect score.

Completeness4/5

Strong coverage of a read-only real-estate research domain: discovery (search, address resolution, agent listings), retrieval (get/bulk/compare/photos/history), analysis (mortgage, affordability), and ops (healthcheck, sessions). The only notable gap is the two non-functional saved-homes/saved-searches tools, which are honest but unusable.

Maintenance

ActivityActive
ResponsivenessWithin a week