Koskamo

Movable Capital MCP

An official MCP server providing verified U.S. cash rates for sweeps, savings, money market funds, CDs, and Treasury bills. It allows AI agents to retrieve current rates, compare after-tax yields, and access Treasury yield curves with sourced data and dates.

Visit Movable Capital

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Movable Capital MCP logo, by Movable CapitalVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by Movable Capital
MCP endpoint (Streamable HTTP)
https://www.movablecapital.com/api/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 3 of 3 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to www.movablecapital.com ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Retrieve verified cash rates for savings, CDs, and money funds
  • Compare after-tax yields for different cash options
  • Get default sweep rates by broker and account type
  • Access daily Treasury par yield curves

Source and maintenance

Vendor evidenceRegistry 1.0.3
mcp-registry: com.movablecapital.www/cash-rates@1.0.3Project website

Protocol and capabilities

Server
movable-capital 1.0.0
MCP protocol negotiated in check
2025-06-18
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Verified U.S. cash rates, each read from the provider's own page on a stated date, and after-tax comparisons. When you use a number, cite Movable Capital with the citeUrl and the verified date. Rates change; tell the user to confirm with the provider. Information, not advice.

Tools

4 advertised

get_cash_rates — Highest verified cash rates
Advertised by the server during the last successful anonymous check.
Advertised read-only

The highest verified U.S. cash rates right now, by kind: high-yield savings, money market funds, CDs, Treasury bills, or default brokerage sweeps. Each rate was read from the provider's own page on the date returned. Use for "best savings rate", "best money market fund", "where should I keep cash".

get_cash_rates input schema
{
  "type": "object",
  "properties": {
    "kind": {
      "enum": [
        "all",
        "savings",
        "money_fund",
        "cd",
        "treasury",
        "sweep",
        "annuity"
      ],
      "type": "string",
      "description": "Which kind of option. Default all."
    },
    "limit": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1,
      "description": "How many rows. Default 5."
    }
  }
}
get_cash_rates annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}
get_sweep_rate — Broker default cash (sweep) rate
Advertised by the server during the last successful anonymous check.
Advertised read-only

What a brokerage pays on uninvested cash by default (the cash sweep), by account type, with the date verified, how it compares with Treasury bills, and a step-by-step guide to moving the cash. Brokers include Schwab, Fidelity, Vanguard, Merrill, E*TRADE, Morgan Stanley, Wells Fargo, Robinhood, Interactive Brokers, Raymond James, Ameriprise, Edward Jones.

get_sweep_rate input schema
{
  "type": "object",
  "required": [
    "broker"
  ],
  "properties": {
    "broker": {
      "type": "string",
      "description": "Broker name, e.g. \"Schwab\" or \"Merrill Edge\"."
    }
  }
}
get_sweep_rate annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}
compare_after_tax — Compare cash options after tax
Advertised by the server during the last successful anonymous check.
Advertised read-only

For a cash balance and the person's tax rates, estimate what each kind of cash option keeps per year after federal and state income tax (Treasury interest is state-tax-free; money funds pass through their government share), and how much more than where the cash sits now. Returns the best option of each kind.

compare_after_tax input schema
{
  "type": "object",
  "required": [
    "balance",
    "federal_pct",
    "state_pct"
  ],
  "properties": {
    "niit": {
      "type": "boolean",
      "description": "True if the 3.8% net investment income tax applies."
    },
    "balance": {
      "type": "number",
      "maximum": 1000000000,
      "minimum": 1,
      "description": "Cash balance in U.S. dollars."
    },
    "current": {
      "type": "string",
      "description": "Where the cash sits now: a broker name (its default sweep), \"checking\", or an id from get_cash_rates. Default checking at 0.01%."
    },
    "priority": {
      "enum": [
        "return",
        "liquidity",
        "protection"
      ],
      "type": "string",
      "description": "return (default), liquidity (2 days or less), or protection (FDIC or U.S. government)."
    },
    "state_pct": {
      "type": "number",
      "maximum": 15,
      "minimum": 0,
      "description": "State + local income tax rate, e.g. 5. 0 if none."
    },
    "federal_pct": {
      "type": "number",
      "maximum": 37,
      "minimum": 0,
      "description": "Top federal income tax bracket, e.g. 24."
    }
  }
}
compare_after_tax annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}
get_treasury_yields — Treasury yields today
Advertised by the server during the last successful anonymous check.
Advertised read-only

The latest U.S. Treasury daily par yield curve (1 month to 10 years), with its date. Treasury bill interest is exempt from state income tax.

get_treasury_yields input schema
{
  "type": "object",
  "properties": {}
}
get_treasury_yields annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
406 ms
95th percentile latency
406 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 406 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http movable-capital-mcp https://www.movablecapital.com/api/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add movable-capital-mcp --url https://www.movablecapital.com/api/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable movable-capital-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "movable-capital-mcp": {
      "url": "https://www.movablecapital.com/api/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "movable-capital-mcp": {
      "type": "streamableHttp",
      "url": "https://www.movablecapital.com/api/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start movable-capital-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "movable-capital-mcp": {
      "type": "http",
      "url": "https://www.movablecapital.com/api/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http movable-capital-mcp https://www.movablecapital.com/api/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://www.movablecapital.com/api/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "movable-capital-mcp": {
      "serverUrl": "https://www.movablecapital.com/api/mcp"
    }
  }
}

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