Gives an AI assistant the official travel rates that are newer than its training data: the IRS standard mileage rates with the mid-2026 increase, the GSA per diem rates for every ZIP code for FY2026 and FY2027, and the IRS high-low per diem rates from Notice 2026-60. Every figure is copied from irs.gov or gsa.gov.
Hosted endpoint (Streamable HTTP, no sign-in, no token). Paste it into Claude.ai custom connectors or ChatGPT developer mode.
https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp
Claude Code
claude mcp add --transport http mileage-per-diem https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp
Local (stdio)
npx -y github:theluckystrike/irs-mileage-rate-per-diem-mcp
get_mileage_rate | IRS standard mileage rates 2011-2026, including the July 1, 2026 increase to 76 cents a mile for business. |
calculate_mileage_deduction | Deduction or reimbursement for miles by date and purpose, split across the 2026 mid-year rate change. |
get_per_diem_rates | GSA lodging by month and M&IE by ZIP or city for FY2026 and FY2027 (standard $113 / $68 from Oct. 1, 2026). |
calculate_trip_per_diem | Maximum per diem for a trip: nightly lodging, M&IE with 75% first and last day, minus provided meals. |
get_high_low_per_diem | IRS high-low rates ($329 / $230 from Oct. 1, 2026) and whether a city is a high-cost locality on a date. |
Self-employed and tracking deductions? Self-employed set-aside calculator on taxbreakcalc.com. Source: github.com/theluckystrike/irs-mileage-rate-per-diem-mcp.
General information, not tax advice. Part of the Zovo MCP collection: mcp.zovo.one.