# com.costsegsmart/cost-seg-smart (remote · costsegsmart.com)

Cost segregation study pricing and Year-1 depreciation/tax-savings estimates for US properties.

- Trust score: 63/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `costsegsmart.com`: 63/100 (this document), [markdown](https://verifymcp.io/servers/com-costsegsmart-cost-seg-smart/costsegsmart.md), [page](https://verifymcp.io/servers/com-costsegsmart-cost-seg-smart/costsegsmart)

## Channel facts

- Endpoint: `https://costsegsmart.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS check failed: the endpoint is reachable over plaintext HTTP.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 57/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1005 tokens (~502/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 40/100
  - Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http com-costsegsmart-cost-seg-smart https://costsegsmart.com/mcp
```

### Codex

```toml
[mcp_servers.com-costsegsmart-cost-seg-smart]
url = "https://costsegsmart.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-costsegsmart-cost-seg-smart": {
      "type": "remote",
      "url": "https://costsegsmart.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-costsegsmart-cost-seg-smart --url https://costsegsmart.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-costsegsmart-cost-seg-smart:
    url: "https://costsegsmart.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "com-costsegsmart-cost-seg-smart": {
      "type": "http",
      "url": "https://costsegsmart.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-01 (score 62, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 61, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 60, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 60, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 59, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 58)

First indexed and scored.

## MCP tools (2)

### `get_cost_seg_quote` (~295 tokens)

Quote a CPA-ready cost segregation study for a US real estate property. Returns the study cost in USD, estimated Year-1 accelerated depreciation, and (when a tax bracket is provided) Year-1 tax savings and ROI on the study fee. Pure tier-matrix lookup — no engine run, no charge to the buyer, safe to call repeatedly. Use this before generating a payment link so you can confirm the price with the buyer. Does not provide tax advice.

Input parameters:

- `property_type` (string, required): Property type identifier. Determines the pricing tier and the default Year-1 reclassification percentage. Residential types (sfr, str, condo, condo_str, adu) reclassify ~22-30%; small multifamily (du…
- `purchase_price` (integer, required): Property purchase price in US dollars. Minimum $25,000. The pricing tier is computed from this value. Properties >= $25M fall in the institutional custom-quote tier.
- `tax_bracket` (number): Optional. Buyer's federal marginal tax bracket. Accepts decimal form (0.0-0.6, e.g. 0.32 for 32%) OR whole-number percent (0-60). When provided, response includes tax_savings_year_one and roi_multipl…

Output parameters:

- `currency` (string): Always 'USD' — Cost Seg Smart is US-only.
- `deduction_estimate_year_one` (integer): Estimated Year-1 accelerated depreciation in USD, computed as purchase_price × (1 - 0.18 land) × reclass_pct[property_type]. Assumes 100% bonus depreciation per OBBBA §168(k) (2025+).
- `disclaimer` (string): Standard estimate disclaimer to show the buyer.
- `next_step` (string): Human-readable instruction for the agent's next call.
- `property_type` (string): Echo of the requested property_type.
- `property_type_label` (string): Human-readable label (e.g. 'Short-Term Rental').
- `purchase_price` (integer): Echo of the requested purchase_price (USD).
- `roi_multiple` (integer|null): Year-1 return on the study fee = tax_savings_year_one / study_cost, rounded to integer. Null when tax_bracket was not provided or study_cost is null.
- `study_cost` (integer|null): Study cost in USD. Null for the institutional custom-quote tier (price >= $25M) — see study_cost_tier.
- `study_cost_tier` (string): 'fixed_price' = study_cost is a real USD amount. 'institutional_custom' = property is in the $25M+ tier; route the buyer to support@costsegsmart.com.
- `tax_savings_year_one` (integer|null): Estimated Year-1 federal tax savings in USD = deduction_estimate_year_one × tax_bracket. Null when tax_bracket was not provided.

### `get_cost_seg_payment_link` (~633 tokens)

Generate a Stripe Checkout URL for a human buyer to purchase a Cost Seg Smart cost segregation study. Returns a payment_link_url plus the study cost, property metadata, and a liability disclaimer naming the calling agent. The buyer must review the URL and authorize payment in their browser — this tool does not charge a card directly. Always call get_cost_seg_quote first and confirm the price with the buyer before generating the link. Side effect: creates a real Stripe Checkout Session.

Input parameters:

- `acquisition_date` (string): Strongly recommended. ISO 'YYYY-MM-DD'. The date the buyer PURCHASED the property (closing/recorded transfer date), which may differ from placed_in_service_date. Both dates together set the bonus-dep…
- `address` (string): Optional. Property street address. Improves report accuracy via county parcel data lookup post-purchase.
- `agent_attribution` (string): Optional. Overrides the X-Agent-Name request header. Use the user-visible name of your agent (e.g. 'Claude', 'ChatGPT', 'Cursor') so the buyer's checkout disclaimer correctly identifies who prepared…
- `bathrooms` (number): Optional. Number of bathrooms (residential only). Half-baths count as 0.5.
- `bedrooms` (integer): Optional. Number of bedrooms (residential only).
- `buyer_email` (string): Optional. Pre-fills the email field on the Stripe Checkout page. If omitted, Stripe collects it from the buyer at checkout.
- `city` (string): Optional. Property city. Used for the report cover page and metro-specific cost adjustments.
- `name` (string): Optional. Buyer's full name for the report cover page.
- `placed_in_service_date` (string): Strongly recommended. ISO 'YYYY-MM-DD'. The date the property was placed in service (available for rent or use). Together with acquisition_date this determines the bonus-depreciation RATE, which is t…
- `property_type` (string, required): Property type identifier. Must match one of the enum values supported by get_cost_seg_quote.
- `purchase_price` (integer, required): Property purchase price in US dollars. Minimum $25,000. Pricing tier is computed from this value.
- `sqft` (integer): Optional. Building square footage. Improves cost-per-square-foot accuracy in the final report.
- `state` (string): Optional. Two-letter US state code (e.g. 'CA', 'TX'). Used for state-tax adjustments where applicable.
- `year_built` (integer): Optional. Year the property was originally constructed. Drives era-specific component cost adjustments.
- `zip` (string): Optional. Property ZIP code (5-digit or ZIP+4).

Output parameters:

- `agent_name` (string): Agent name as it appears in the buyer's checkout disclaimer.
- `agent_order_ref` (string): Internal correlation ID for this agent-initiated order.
- `contact_email` (string): Present only for the institutional tier. Route the buyer here for a custom-scoped engagement quote.
- `currency` (string): Always 'USD' when present.
- `disclaimer` (string): Full liability disclaimer embedded in the Stripe Checkout description. Show this to the buyer alongside the link.
- `message` (string): Present only for the institutional tier. Human-readable explanation to surface to the buyer.
- `next_step` (string): Human-readable instruction for the agent's next action.
- `payment_link_url` (string|null): Stripe Checkout URL for the buyer to click. Null for the institutional custom-quote tier — when null, see contact_email.
- `property_type` (string): Echo of the requested property_type.
- `property_type_label` (string): Human-readable property type label.
- `purchase_price` (integer): Echo of the requested purchase_price.
- `stripe_session_id` (string): Stripe Checkout Session ID (cs_live_... or cs_test_...). Present only when payment_link_url is non-null.
- `study_cost` (integer): Study cost in USD the buyer will be charged. Present only for fixed-price tiers.
- `tier` (string): Present only when the property is in the institutional custom-quote tier (purchase_price >= $25M).

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-costsegsmart-cost-seg-smart/costsegsmart#diagnostics

## Score history

- 2026-08-03: 63
- 2026-08-02: 62
- 2026-08-01: 62
- 2026-07-31: 61
- 2026-07-30: 60
- 2026-07-29: 60
- 2026-07-28: 59
- 2026-07-27: 59
- 2026-07-26: 58

## Links

- Remote endpoint: https://costsegsmart.com/mcp
- Repository: https://github.com/jonhersh/cost-seg-smart-mcp
- Website: https://costsegsmart.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-costsegsmart-cost-seg-smart/costsegsmart/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-costsegsmart-cost-seg-smart/costsegsmart/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-costsegsmart-cost-seg-smart/costsegsmart