IRS Mileage Rate and Per Diem
REMOTE · IRS-MILEAGE-RATE-PER-DIEM-MCP.LIPMICHAL.WORKERS.DEV
IRS mileage rates 2011-2026 (76 cents from July 2026), GSA per diem by ZIP FY2026-27, high-low.
Available components
Last scanned (7 hours ago)
Scores higher than 52% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability66
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1069 tokens (~213/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management7
- Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
- Stability: unverified → 0.03 ▲ functional
- 3 Nov 26 65
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=lipmichal.workers.dev | CN=WE1,O=Google Trust Services,C=US | 2 Oct 2026 | 31 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | ebf145553d5751d20e0d3cd51e3d7a94 |
| SANs: lipmichal.workers.dev, *.lipmichal.workers.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
calculate_mileage_deduction Mileage deduction or reimbursement calculator ~156
Calculates the deduction or tax-free reimbursement for driven miles at the IRS standard mileage rates, splitting by the date each trip was driven. Applies the 2026 mid-year increase automatically (72.5 cents before July 1, 76 cents from July 1). Supports business, medical, charity and military moving miles, returns the amount per rate period and purpose, and the depreciation basis reduction for business miles. Notes who can and cannot deduct (employees' unreimbursed mileage is not deductible after the One, Big, Beautiful Bill Act).
| Name | Type | Req | Description |
|---|---|---|---|
| default_purpose | string | – | Purpose for trips that do not set one. Default business. |
| trips | array | yes | Trips or mileage totals, each with a date. |
No output schema declared.
No examples provided.
calculate_trip_per_diem Trip per diem calculator (GSA rates) ~222
Calculates the maximum federal per diem for a business trip: lodging for each night at that month's GSA rate (crossing seasons and the Oct. 1 fiscal year change), M&IE for each day with 75% on the first and last day, minus meals provided at the GSA breakdown amounts. Uses the official FY2026 and FY2027 GSA rates for trips between Oct. 1, 2025 and Sept. 30, 2027.
| Name | Type | Req | Description |
|---|---|---|---|
| city | string | – | City or county name, e.g. "Boston" or "Maricopa". |
| end_date | string | yes | Last travel day (YYYY-MM-DD). |
| meals_provided | object | – | Number of meals provided (by a conference or the employer) to deduct from M&IE. |
| start_date | string | yes | First travel day (YYYY-MM-DD). |
| state | string | – | 2-letter state code, e.g. MA. |
| zip | string | – | 5-digit ZIP code of the destination (best match). |
No output schema declared.
No examples provided.
get_high_low_per_diem IRS high-low per diem rates and high-cost localities ~200
Returns the IRS high-low substantiation method rates for a date and whether a city is a high-cost locality then: from Oct. 1, 2026 $329 high / $230 low with $86 / $74 treated as meals (Notice 2026-60); Oct. 1, 2025 - Sept. 30, 2026 $319 / $225 (Notice 2025-54). Also the transportation industry M&IE ($80 CONUS, $86 OCONUS) and the $5 incidental-expenses-only rate. Checks the 91 FY2027 high-cost localities and their seasonal portions (e.g. Tucson added, Panama City removed).
| Name | Type | Req | Description |
|---|---|---|---|
| city | string | – | City or county to test against the high-cost list. |
| date | string | – | Travel date. Default today (YYYY-MM-DD). |
| state | string | – | 2-letter state code or state name. |
No output schema declared.
No examples provided.
get_mileage_rate IRS standard mileage rates (2011-2026, incl. the July 2026 increase) ~222
Returns the official IRS standard mileage rates in cents per mile for business, medical, charity and military moving use, for a year or a specific date. Knows the mid-year 2026 change: 72.5 cents for business from Jan. 1 to June 30, 2026 (Notice 2026-10) and 76 cents from July 1, 2026 (Announcement 2026-11, fuel price increase), medical/moving 20.5 then 23.5 cents, charity 14 cents. Also returns the depreciation (basis reduction) part of the business rate (35 cents for 2026) and the FAVR / employer-vehicle maximum value ($61,700 for 2026). 2027 rates are not announced yet and the tool says so.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | A date the miles were driven; returns the rate in force that day (YYYY-MM-DD). |
| year | integer | – | Tax year, e.g. 2026. Default 2026. |
No output schema declared.
No examples provided.
get_per_diem_rates GSA per diem rates by ZIP or city (FY2026 and FY2027) ~269
Returns the official GSA federal per diem rates for a U.S. (CONUS) destination by ZIP code or city/state: maximum lodging per night by month and the meals and incidental expenses (M&IE) rate with its breakfast/lunch/dinner/incidentals breakdown and the 75% first/last-day amount. Covers FY2026 (Oct. 1, 2025 - Sept. 30, 2026) and FY2027 (from Oct. 1, 2026; standard rate $113 lodging and $68 M&IE). Data from GSA's FY2026 and FY2027 ZIP code files, so it knows rates newer than a model's training data.
| Name | Type | Req | Description |
|---|---|---|---|
| city | string | – | City or county name, e.g. "Boston" or "Maricopa". |
| date | string | – | Travel date; picks the fiscal year and shows that night's lodging rate (YYYY-MM-DD). |
| fiscal_year | integer | – | Federal fiscal year (2027 = Oct. 2026 - Sept. 2027). Default: the current one. |
| state | string | – | 2-letter state code, e.g. MA. |
| zip | string | – | 5-digit ZIP code of the destination (best match). |
No output schema declared.
No examples provided.
How do I install the IRS Mileage Rate and Per Diem MCP server?
IRS Mileage Rate and Per Diem is a hosted endpoint at https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev
claude mcp add --transport http theluckystrike-irs-mileage-rate-per-diem-mcp 'https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp'
What is the IRS Mileage Rate and Per Diem MCP server?
IRS Mileage Rate and Per Diem is an MCP server listed in the public MCP registry as io.github.theluckystrike/irs-mileage-rate-per-diem-mcp. IRS mileage rates 2011-2026 (76 cents from July 2026), GSA per diem by ZIP FY2026-27, high-low. This page covers its hosted endpoint (https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp).
Is the IRS Mileage Rate and Per Diem MCP server safe to use?
IRS Mileage Rate and Per Diem scores 66 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the IRS Mileage Rate and Per Diem MCP server expose?
IRS Mileage Rate and Per Diem exposes 5 tools: get_mileage_rate, calculate_mileage_deduction, get_per_diem_rates, calculate_trip_per_diem, get_high_low_per_diem. Their descriptions and schemas cost roughly 1,069 tokens of context every time the server is loaded.
Does the IRS Mileage Rate and Per Diem MCP server require authentication?
No. We connected to IRS Mileage Rate and Per Diem without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the IRS Mileage Rate and Per Diem MCP server still maintained?
IRS Mileage Rate and Per Diem is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.