compoundsim
Compound interest and Monte Carlo simulators for investing, retirement and past asset returns.
What it does
compoundsim is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)Hosted endpoint
https://compoundsim.app/mcpstreamable-http
In Claude Code: claude mcp add --transport http compoundsim https://compoundsim.app/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"compoundsim": {
"url": "https://compoundsim.app/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 1h agoONLINE compoundsim answered an MCP connection on 01 Nov 2026 and introduced itself as compoundsim 1.0.0 (MCP protocol 2025-06-18).
5 tools offered to AI assistants
simulate_portfolio· Monte Carlo simulation of investing monthly (plus an optional starting sum) in one asset or a mix rebalanced monthly. Returns the range of outcomes by year (10th to 90th percentile), the deepest fall along the way, the mix's own past returncompare_portfolios· Runs the same monthly-investing plan through 2 to 4 portfolios (the same simulation as simulate_portfolio) and returns each one's final outcome range, deepest fall, past return and volatility, and url, for questions like 'S&P 500 or all-cousimulate_withdrawal· Monte Carlo simulation of withdrawing a yearly percentage of a starting balance, raised with inflation every month, from a portfolio (the 4% rule and its variants). Returns the share of paths that still had money at the end, when the otherssimulate_fixed_rate· Deterministic compound growth of monthly contributions (plus an optional starting sum) at a fixed annual return. Returns contributions, gains and total by year, and a compoundsim.app url. Use simulate_portfolio for the range of outcomes ofget_asset_returns· Annualised past returns of the assets compoundsim simulates, over the last 5, 10 or 20 years, all the data, or a calendar span: total return with dividends reinvested, price return, the dividends' share, volatility, and the return after US
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://compoundsim.app/mcp | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Website | https://compoundsim.app/mcp | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Version | 1.0.0 | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
Change history
- NEW01 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is compoundsim still online?
Free alerts · no account▲ 0Do you run compoundsim? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Are you the publisher of compoundsim?
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<a href="https://electraindex.com/mcp/compoundsim?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/compoundsim" alt="Listed on Electra Index"></a>Questions about compoundsim
How do I connect compoundsim?
Use the hosted endpoint https://compoundsim.app/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does compoundsim offer?
When Electra Index connected on 01 Nov 2026, it listed 5 tools: simulate_portfolio, compare_portfolios, simulate_withdrawal, simulate_fixed_rate, get_asset_returns. The full list is in "Live check" above.
Is compoundsim online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.