I Bond Rate MCP

Connect Remote server

claude mcp add --transport http i-bond-rate-mcp https://i-bond-rate-mcp.lipmichal.workers.dev/mcp

{
  "mcpServers": {
    "i-bond-rate-mcp": {
      "url": "https://i-bond-rate-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

{
  "servers": {
    "i-bond-rate-mcp": {
      "type": "http",
      "url": "https://i-bond-rate-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://i-bond-rate-mcp.lipmichal.workers.dev/mcp

Tools 5 found in our last check

• get_current_i_bond_rate

  Current Series I savings bond composite rate, fixed rate and semiannual inflation rate for new purchases, read at call time from the TreasuryDirect "I bonds interest rates" page with the built-in rate chart as fallback. November 2026 to April 2027: 5.51 percent with a 1.40 perce…

• get_i_bond_rate_for_issue_date

  For an I bond bought in a given month: its fixed rate, the composite rate it earns in the current (or given) 6-month period, the months its rate changes, whether it can be cashed and the penalty, and every rate period since issue. Computed from the TreasuryDirect rate chart effe…

• estimate_i_bond_value

  Estimate what I bonds are worth for an issue month and purchase amount at the start of a month: value with all interest and the redemption value after the 3-month penalty for bonds under 5 years. Uses semiannual compounding per $25 with the TreasuryDirect rates. An estimate; Tre…

• calculate_i_bond_composite_rate

  Apply the Treasury formula fixed + 2 x semiannual inflation + fixed x semiannual inflation, rounded to 0.01 percent with a floor of zero. Use it for rate predictions.

• get_i_bond_rate_history

  Fixed rate for new bonds, semiannual inflation rate and composite rate for every May and November announcement since September 1998, newest first, from the TreasuryDirect rate chart.

Details

More other servers See all

• SalaryNet Payroll

  Gross-to-net pay and employer cost for US, PH, NG, ID, IN, BR, KE, VN with official sources.

• Auto Öz

  Auto Öz: Kontakt, Standorte, Öffnungszeiten, Leistungen und Angebote, Freie Termine, Termin…

• CGC Airport Transfers

  Fixed-price quotes and bookings for private airport transfers: Gold Coast, Brisbane, Byron Bay.

• Coral

  Private, non-explicit intimacy exercises, scripts and a couples quiz for adults 18+.

• Business valuation calculator

  Estimates what a buyer might pay for a small agency, service or SaaS business, in US dollars.

• BuildYourWolfpack

  Roast-to-order coffee with a game built in: missions, Pack Points, and your own wolf pack.