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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Data access / search

Pass-through tax rules

By passthroughtax.com Verified namespace

Cited, tax-year-dated rules for state PTET, the federal SALT cap, and bonus-depreciation conformity.

WebsiteFinance & payments
Connect to Pass-through tax rules
Checks passed
13 / 22

1 failed · 8 not measured

Median response
562 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
4

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 562 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name pass-through-tax-rules.

  • Pass
    Lists tools

    tools/list returned 4 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 562 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 562 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    7 of 7 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-24T13:04:45.51418Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Pass-through tax rules

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http pass-through-tax-rules https://passthroughtax.com/api/mcp

Capabilities

Tools 4

bonus_conformity

Whether a state conforms to IRC 168(k) bonus depreciation and IRC 179 for a tax year, its IRC conformity date, and the add-back or subtraction in plain terms. Unverified fields are null. Unknown states and years are not_covered.

Discovered
coverage

List jurisdictions and tax years in this dataset. elective_ptet_2026 counts only 2026 files with an elective PTET. no_elective_ptet_2026 and not_effective_2026 are separate and are not PTET states for 2026.

Discovered
ptet_rules

Elective pass-through entity tax for one state and tax year: eligibility, who elects, deadline, rate, owner credit or exclusion, estimates, and sunset. Returns not_covered when this server has no file. Informational, not tax advice.

Discovered
salt_cap

Compute the federal SALT deduction cap under 26 USC 164(b)(6) and (b)(7) for a tax year, filing status, and modified adjusted gross income. Returns the cap and the steps, not the deduction. Years before 2018 are not_covered. MAGI is used to compute and is not written to the usage log.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected562 ms4

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