Movable Capital: verified cash rates

com.movablecapital.wwwPublished by www.movablecapital.comOfficial publisherv1.0.3Updated Nov 7, 2026

Verified U.S. cash rates (sweeps, savings, money funds, CDs, T-bills), dated, with after-tax math.

VerifiedStreamable HTTPWeb executableFinanceData & Analytics

Overview

AI-generated overview

Provides dated, verified U.S. cash rates — savings, money market funds, CDs, T-bills and brokerage sweeps — plus after-tax comparisons.

What you can do
  • Look up the highest verified cash rates by kind: high-yield savings, money market funds, CDs, Treasury bills and default brokerage sweeps
  • Check what a brokerage pays on uninvested cash by account type, with the verified date, a comparison to Treasury bills and steps for moving the cash
  • Estimate after-tax annual returns for a cash balance across cash options, given federal and state tax rates
  • Retrieve the latest U.S. Treasury daily par yield curve from 1 month to 10 years with its date
When to use it
Useful when someone asks where to keep cash, what the best savings or money market rate is, how a brokerage sweep compares with T-bills, or what a cash option keeps after tax.
Requirements
Remote streamable HTTP endpoint; no authentication, environment variables or headers are declared. Network access to the provider's endpoint is needed.
Before you install
Rates are informational and change often; the server itself says to confirm with the provider and that it is not advice. It asks assistants to cite Movable Capital with a cite URL and verified date when using a number. Tax estimates depend on the tax rates supplied and are not a substitute for professional advice.

Installation

In SourceWeft

  1. Open Movable Capital: verified cash rates in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.movablecapital.www%2Fcash-rates/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "movable-capital-verified-cash-rates": {
      "type": "http",
      "url": "https://www.movablecapital.com/api/mcp"
    }
  }
}

Tools

4

get_cash_rates

Highest verified cash rates

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".

Parameterskindlimit

get_sweep_rate

Broker default cash (sweep) rate

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.

Parametersbrokerrequired

compare_after_tax

Compare cash options after tax

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.

Parametersniitbalancerequiredcurrentprioritystate_pctrequiredfederal_pctrequired

get_treasury_yields

Treasury yields today

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.

Takes no parameters.

Version history

1
  1. v1.0.3LatestNov 7, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.