com.retirecrunch/calculators
REMOTE · MCP.RETIRECRUNCH.COM · SCANNED SEP 25
FIRE & retirement calculators + a multi-currency portfolio rebalancer (exact buy/sell trades).
Available components
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. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 6 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability57
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1191 tokens (~198/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage84
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 52% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the com.retirecrunch/calculators MCP server?
com.retirecrunch/calculators is a hosted endpoint at https://mcp.retirecrunch.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.retirecrunch.com
claude mcp add --transport http com-retirecrunch-calculators 'https://mcp.retirecrunch.com/mcp'
{
"mcpServers": {
"com-retirecrunch-calculators": {
"url": "https://mcp.retirecrunch.com/mcp"
}
}
} {
"servers": {
"com-retirecrunch-calculators": {
"type": "http",
"url": "https://mcp.retirecrunch.com/mcp"
}
}
} [mcp_servers.com-retirecrunch-calculators] url = "https://mcp.retirecrunch.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-retirecrunch-calculators": {
"type": "remote",
"url": "https://mcp.retirecrunch.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-retirecrunch-calculators --url 'https://mcp.retirecrunch.com/mcp' --transport streamable-http
mcp_servers:
com-retirecrunch-calculators:
url: "https://mcp.retirecrunch.com/mcp" {
"McpServers": {
"com-retirecrunch-calculators": {
"Transport": "http",
"Url": "https://mcp.retirecrunch.com/mcp"
}
}
} assistant mcp add com-retirecrunch-calculators -t streamable-http -u 'https://mcp.retirecrunch.com/mcp'
{
"mcpServers": {
"com-retirecrunch-calculators": {
"type": "http",
"url": "https://mcp.retirecrunch.com/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
- Stability: 0.97 → pass security
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 25 Sept 2026 · Probed https://mcp.retirecrunch.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.retirecrunch.com | CN=WR3,O=Google Trust Services,C=US | 25 Aug 2026 | 23 Nov 2026 | RSA 2048 | SHA256-RSA | 530215e40184204c1053f5f6493528d4 |
| SANs: mcp.retirecrunch.com | ||||||
| CN=WR3,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7ff005a91568d63abc22861684aa4b5a |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.retirecrunch.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| retirecrunch.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.retirecrunch.com/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.retirecrunch.com/mcp | HTTPS enforced |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
calculate_coast_fire ~133
Compute the Coast FIRE milestone — the capital required today such that, with no further contributions, a portfolio compounds to the user's retirement target by their target age.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_expenses_in_retirement | number | yes | – |
| currency | string | – | – |
| current_age | integer | yes | – |
| current_savings | number | yes | – |
| expected_return_rate | number | – | – |
| inflation_rate | number | – | – |
| monthly_savings | number | – | – |
| portfolio_volatility | number | – | – |
| safe_withdrawal_rate | number | – | – |
| target_retirement_age | integer | yes | – |
No output schema declared.
No examples provided.
calculate_fire_target ~133
Estimate the savings target needed for Financial Independence / Early Retirement. Runs Monte Carlo simulation and returns the probability the portfolio survives the planning horizon.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_expense | number | yes | Projected annual spending in retirement (in selected currency). |
| apply_inflation | boolean | – | – |
| currency | string | – | – |
| current_savings | number | – | Current liquid + invested assets. |
| inflation_rate | number | – | – |
| portfolio_return_rate | number | – | Expected real annual return %. |
| portfolio_volatility | number | – | Annual return standard deviation %. |
| years | integer | yes | Planning horizon in years. |
No output schema declared.
No examples provided.
compute_swiss_property_tax ~153
Estimate the Swiss cantonal real-estate capital gains tax (Grundstückgewinnsteuer) for a property sale. Covers all 26 cantons with holding-period adjustments and Ersatzbeschaffung (replacement-residence) deferral. Educational estimate; commune surcharges and value-enhancing-improvement deductions are not modeled.
| Name | Type | Req | Description |
|---|---|---|---|
| canton | string | yes | Canton code (ZH, BE, ..., JU). |
| ersatzbeschaffung | boolean | – | Reinvest proceeds into a replacement primary residence. |
| ersatzbeschaffung_amount | number | – | Amount reinvested (caps the tax deferral). |
| purchase_price | number | yes | – |
| sale_price | number | yes | – |
| years_held | number | yes | – |
No output schema declared.
No examples provided.
get_portfolio_returns ~81
Return RetireCrunch's historical portfolio return profiles for a currency. Each profile is a (return %, volatility %) pair derived from real index data — useful for grounding the assumptions in calculate_fire_target / project_wealth_plan in something defensible rather than guessing.
| Name | Type | Req | Description |
|---|---|---|---|
| currency | string | yes | Currency code; the historical return profiles are denominated in this currency. |
No output schema declared.
No examples provided.
project_wealth_plan ~501
Run RetireCrunch's full year-by-year Wealth Plan projection for a household. Models earned income, pensions, expenses, portfolio growth, optional growth→income phase switch, mortgage amortization, optional property sale, and region-aware tax (US uses 2026 federal+state brackets; other regions use a flat rate). Returns a compact summary with 5-year milestones by default, or the full annual array when yearly_detail=true.
| Name | Type | Req | Description |
|---|---|---|---|
| currency | string | – | – |
| current_earned_income | number | – | Annual gross earned income today. |
| current_housing_expenses | number | – | Annual housing expenses today. |
| current_investment_portfolio | number | – | – |
| current_liquidity | number | – | – |
| current_living_costs | number | – | Annual general living expenses today. |
| current_mortgage | number | – | – |
| current_other_expenses | number | – | Annual other expenses today. |
| current_property | number | – | – |
| estimated_tax_rate | number | – | Pre-retirement effective tax rate (%). |
| household_type | string | – | – |
| income_yield_rate | number | – | Annual yield % during the income phase. |
| inflation_rate | number | – | Annual inflation %. |
| partner_early_death_years_before_end | integer | – | – |
| partner_survivor_expense_factor | number | – | – |
| plan_horizon_years | integer | – | Total years to project from start_year. |
| portfolio_return_rate | number | – | Annual real portfolio return %. |
| portfolio_switch_enabled | boolean | – | – |
| portfolio_switch_year | integer | – | Year to switch from growth to income phase. Defaults to retirement_year if omitted. |
| portfolio_volatility | number | – | Return std dev %; 0 = deterministic. |
| post_retirement_tax_rate | number | – | Post-retirement effective tax rate (%). |
| property_sale_destination | string | – | – |
| property_sale_enabled | boolean | – | – |
| property_sale_year | integer | – | – |
| region | string | – | Country regime — drives tax model (US uses bracket-based federal/state; others a flat rate). |
| retirement_year | integer | yes | Year retirement begins. |
| start_year | integer | yes | First year of the projection (typically the current year). |
| yearly_detail | boolean | – | When true, include the full year-by-year array in the response. When false (default), return a compact summary plus 5-year milestones. |
No output schema declared.
No examples provided.
rebalance_portfolio ~190
Rebalance a multi-currency portfolio: given holdings, per-holding (or per-asset-class) target weights, cash and FX rates, return the exact BUY/SELL trades to reach the targets, the per-currency cash movements (flagging foreign-cash overdrafts), and a summary. Planning math only — no transaction costs or taxes.
| Name | Type | Req | Description |
|---|---|---|---|
| available_cash | object | – | Cash held per currency, keyed by ISO code. |
| base_currency | string | – | Base currency the portfolio is valued in. |
| class_targets | object | – | Optional per-asset-class goal % (incl. "Cash"). When given, unlocked holdings are retargeted to hit each class goal before computing trades. |
| fx_rates | object | – | Value of 1 unit of each currency in the base currency (base currency itself is 1). |
| holdings | array | yes | The portfolio holdings to rebalance. |
No output schema declared.
No examples provided.
What is the com.retirecrunch/calculators MCP server?
com.retirecrunch/calculators is an MCP server listed in the public MCP registry as com.retirecrunch/calculators. FIRE & retirement calculators + a multi-currency portfolio rebalancer (exact buy/sell trades). This page covers its hosted endpoint (https://mcp.retirecrunch.com/mcp).
Is the com.retirecrunch/calculators MCP server safe to use?
com.retirecrunch/calculators scores 74 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the com.retirecrunch/calculators MCP server expose?
com.retirecrunch/calculators exposes 6 tools: calculate_fire_target, calculate_coast_fire, compute_swiss_property_tax, project_wealth_plan, get_portfolio_returns, rebalance_portfolio. Their descriptions and schemas cost roughly 1,191 tokens of context every time the server is loaded.
Does the com.retirecrunch/calculators MCP server require authentication?
No. We connected to com.retirecrunch/calculators without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the com.retirecrunch/calculators MCP server still maintained?
com.retirecrunch/calculators is still listed as active in the MCP registry. We last reached this channel on 25 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.