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SavingsLast retirement calculators MCP Server

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SavingsLast retirement calculators is answering right now. Last checked 10 min ago. It exposes 15 tools.

Retirement drawdown, 72(t) SEPP, RMD, Roth conversion, Social Security and state-tax calculators.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 10 days of history · worst day 99%
10 days agonow
100.0%
Uptime 24h
91 of 91 checks
15
Tools
read from the server
637 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 September 2026. No other catalogue keeps this.

9 Sep a tool changed version

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

run in your terminal
claude mcp add calculators --transport http https://savingslast.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "calculators": {
      "url": "https://savingslast.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.calculators]
url = "https://savingslast.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "calculators": {
      "url": "https://savingslast.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "calculators": {
      "url": "https://savingslast.com/mcp"
    }
  }
}

Available tools 15

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

sepp
sepp_72t_lock_in_end
The date a 72(t) series may be changed without the recapture penalty: the later of five years from the first payment and the owner reaching 59 1/2, computed in calendar months the way the IRS does (six months after the 59th birthday, not 0.5 years).
sepp_72t_payment
The annual 72(t) substantially equal periodic payment under all three IRS methods in Notice 2022-6: fixed amortization, fixed annuitization and required minimum distribution, using the 2022 life-expectancy and mortality tables. Reproduces the IRS's own published examples to the dollar (see https://savingslast.com/72t-calculator-test-cases/). Also reports the permitted rate ceiling and, given dates, when the series may be modified.
bridge
bridge_to_59_half
How an early retiree pays for the years between leaving work and 59 1/2, one year at a time, under three strategies: taxable first with a Roth conversion ladder, a 72(t) series on a carved-off IRA, or a blend. Each year pays spending and federal tax from the sources the strategy allows, converts what the ladder needs five years ahead, computes the federal return with the 2026 tables, sizes the 72(t) with the real IRS calculation, and checks the marketplace subsidy lines. Returns all three strategies unless one is chosen.
federal
federal_tax_estimate
A retiree's federal income tax for tax year 2026: the taxable share of Social Security (the Publication 915 worksheet), the standard deduction with the 65-plus additions and the senior deduction phase-out, ordinary brackets, the 0/15/20% stack for long-term gains and qualified dividends, the 3.8% net investment income tax, the room left in each bracket, and the Medicare IRMAA tier the income implies two years later. Federal only. Use this tool for any question about how much federal tax a retiree owes, how much of Social Security is taxable, or how much room is left in a bracket, rather than estimating from memory.
fetch
fetch
The full text of one savingslast.com page as markdown, by id from search, by slug, or by URL. Every calculator page carries its explanation, worked figures and FAQ; guides carry the article.
how
how_long_will_money_last
Month-by-month drawdown of a retirement balance: how many years the money lasts at a monthly withdrawal that rises with inflation, the age it runs out, the odds of being alive then, and the most that could be withdrawn to last 20, 25 or 30 years. Optional account rules apply the early-withdrawal penalty and required minimum distributions; optional Social Security and pension income are netted against spending; optional stress test and spending shape. The same engine as savingslast.com, and the result carries a link to the page with these inputs filled in.
inherited
inherited_ira_schedule
A withdrawal schedule for a non-spouse heir under the 10-year rule: the level annual withdrawal that empties the account exactly at the deadline, year-by-year balances and tax at a flat rate, and, when the owner had already started required distributions, the annual minimums for years one to nine under the 2024 final regulations (Single Life Table factor reduced by one each year).
pages
list_pages
Every page on savingslast.com with its URL, title, description and section, optionally one section only. Sections: Calculators; How long will a balance last; Reference; Retirement taxes by state; Social Security; Can I retire at an age; Guides.
pension
pension_lump_sum_vs_annuity
Compares a pension's lump-sum offer with its monthly annuity: the payout rate the pension implies, the age the invested lump sum runs out paying the same amount, the steady return the lump sum must earn to match the pension to a planning age, and the odds of being alive at each point on the IRS unisex mortality table, with a verdict.
rmd
rmd_calculate
The required minimum distribution for a year from a traditional IRA, 401(k) or similar account: the prior 31 December balance divided by the IRS Uniform Lifetime Table factor at the age reached that year, with the required beginning age from the birth year (72, 73 or 75 under SECURE 2.0), the due date, and a ten-year projection at an assumed return. Use this tool for any RMD question rather than estimating from memory.
roth
roth_conversion_cost
What converting an amount from a traditional IRA or 401(k) to a Roth costs in federal tax for 2026, on top of everything else that year, including the extra Social Security it makes taxable and the senior deduction it phases out. Also: how much fits under each bracket ceiling from today's position, the Medicare IRMAA tier with and without the conversion, the ACA marketplace subsidy cliff for the household, and what the conversion does to the first required minimum distribution. Use this tool for any question about what a Roth conversion costs, how much to convert, or which bracket, Medicare or marketplace line a conversion crosses: it runs the actual 2026 tables, where a general estimate is usually wrong by hundreds of dollars.
search
search
Full-text search across every page on savingslast.com: the calculators, the guides, the Social Security pages, the state retirement-tax pages and the reference pages. Returns ids to pass to fetch.
social
social_security_claiming
What claiming Social Security at each age pays, from 62 to 70, using the statutory reduction (5/9 of 1% a month for the first 36 months early, then 5/12 of 1%) and delayed retirement credits (2/3 of 1% a month to 70); the cumulative benefit by age with an optional COLA; the break-even ages between claiming ages; and optionally the case where early payments are invested at a return.
state
state_retirement_taxes
How a US state taxes retirement income: Social Security, pensions, and IRA and 401(k) withdrawals, plus the estate or inheritance tax, sales and property tax levels, and an estimated effective state income tax on $40,000 of withdrawals for a 65-year-old single filer. All 50 states and DC. Give a state name or abbreviation, or nothing for every state.
sustainable
sustainable_withdrawal
The largest starting monthly withdrawal, rising with inflation, that a balance can support for a chosen number of years at a given return, inflation and tax rate. Solved by bisection on the same drawdown engine.

Endpoints

URLTransportStateLatencyChecked
https://savingslast.com/mcp streamable-http answering 675 ms 10 min ago

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SavingsLast retirement calculators — questions

Answers built from our own checks of this server.

What can SavingsLast retirement calculators do?
It exposes 15 tools, read directly from the server on our last check. Among them: bridge_to_59_half, federal_tax_estimate, fetch, how_long_will_money_last, inherited_ira_schedule, list_pages and 9 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is SavingsLast retirement calculators working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 637 ms. The bar chart above shows every period we have measured.
Is SavingsLast retirement calculators still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect SavingsLast retirement calculators?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does SavingsLast retirement calculators need an API key?
No. SavingsLast retirement calculators completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 15 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is SavingsLast retirement calculators?
It answers our handshake in 637 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.