Free US retirement calculators as MCP tools, the same engines that run on savingslast.com: how long money lasts, the IRS 72(t) SEPP payment (matches the IRS's own published examples), RMDs, Roth conversion cost, the bridge to 59½, pension lump sum vs annuity, inherited IRA schedules, Social Security claiming, and retirement taxes in all 50 states. Plus search and fetch over every page of the site. No auth, nothing stored; every result links to the page with the inputs filled in. Educational estimates, not advice.
MCP readiness
Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here C+, 70.0/100), which weighs availability, conformance, p95 speed and descriptor. How the two differ
| Valid MCP handshake | 10/10 | initialize and tools/list both answered. |
| Live MCP endpoint | 24/25 | Endpoint answers the MCP initialize handshake (3810 ms); slow response -1. |
| Protocol revision | 6/10 | Speaks MCP 2025-06-18, 2 revision(s) behind 2026-07-28. |
| Signed descriptor | n/a | No MCP standard defines a signed server descriptor. |
| Uptime (30 days) | 15/15 | 30/30 probes succeeded over 30 days (100%). |
| Tool declaration | 10/10 | Lists 15 tool(s) with descriptions. |
| Verified identity | 5/10 | Publisher declared (repository, package or homepage); claim this listing to verify domain control. |
| Freshness + modern flags | 0/5 | not seen in a source for over 30 days. |
| Auth declaration | 2/5 | Declares credential scheme: smithery_api_key. |
Compared with peers
Against 53,039 reachable MCP servers in our daily snapshot (2026-11-12 06:46 UTC). Display only; it does not change search order.
- Readiness
- Higher than 45% of peers
- This listing 80 · peer median 81
- Latency
- Faster than 23% of peers
- This listing 581 ms · peer median 326 ms
Where it loses the most points, and how to win them back
- Verified identity −5
— Claim the listing and prove control of its domain.
Now: Publisher declared (repository, package or homepage); claim this listing to verify domain control.
- Freshness + modern flags −5
— Keep the listing current in the registry or source it comes from.
Now: not seen in a source for over 30 days.
- Protocol revision −4
— Support the current protocol revision.
Now: Speaks MCP 2025-06-18, 2 revision(s) behind 2026-07-28.
Listed in
Directories this entry was found in.
How to connect
https://server.smithery.ai/haider/savingslast/mcp
curl -X POST https://server.smithery.ai/haider/savingslast/mcp \
-H 'Content-Type: application/json' \
-H 'Accept: application/json, text/event-stream' \
-d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'