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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "tax-tools": {
      "type": "http",
      "url": "https://mcp.arcandledger.com/directory/mcp"
    }
  }
}

claude mcp add --transport http tax-tools https://mcp.arcandledger.com/directory/mcp

[mcp_servers.tax-tools]
url = "https://mcp.arcandledger.com/directory/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "tax-tools": {
      "type": "remote",
      "url": "https://mcp.arcandledger.com/directory/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "tax-tools": {
      "type": "http",
      "url": "https://mcp.arcandledger.com/directory/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=tax-tools&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLmFyY2FuZGxlZGdlci5jb20vZGlyZWN0b3J5L21jcCJ9"
}

{
  "servers": {
    "tax-tools": {
      "type": "http",
      "url": "https://mcp.arcandledger.com/directory/mcp"
    }
  }
}

{
  "mcpServers": {
    "tax-tools": {
      "httpUrl": "https://mcp.arcandledger.com/directory/mcp"
    }
  }
}

extensions:
  "tax-tools":
    enabled: true
    name: "tax-tools"
    type: streamable_http
    uri: "https://mcp.arcandledger.com/directory/mcp"
    timeout: 300

Quality 85 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations13 of 13 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: decode_irs_notice (idempotentHint); deadline_calendar (idempotentHint); check_fbar_fatca (idempotentHint); …
pass
tools.token_costabout 4,749 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changes1 tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

13 tools, about 4,749 tokens to load them all · tool set 9d45a6685e58 · tools last changed 2026-10-14 · checked 2026-10-20 13:49 UTC

Tool changes

2026-10-14check_resolution_optionschangedinput schema

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 71 / 100

provenance85

liveness29

freshness85

hygiene100

+repository +dns-namespace +website -unreachable(1 failures) ~updated-84d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://mcp.arcandledger.com/directory/mcp` streamable-http	none	no (1 failures)	97%	268 ms	2025-11-25	2026-10-20

Tools (13)

`check_5472_obligation`read-only	Use to screen common Form 5472 triggers for a foreign-owned US disregarded entity or corporation. The result is a general filing screen and does not prepare or file the form.
`check_fbar_fatca`read-only	Use to screen general FBAR and Form 8938 thresholds from aggregate balance, filing status, residence, and account-count facts. Do not request account numbers, institution names, or statements.
`check_itin_eligibility`read-only	Use to screen general ITIN reason categories, whether a return is commonly attached, and supporting-document requirements. Never request or process an actual ITIN, passport, or identity document.
`check_resolution_options`read-only	Use to screen general IRS payment and collection alternatives from a rough balance, filing-compliance status, ability-to-pay category, and coarse tax-account type when known. This is an educational fit screen, not a promise that the IRS will approve an option.
`check_treaty_withholding`read-only	Use to explain general US withholding rules, documentation, and supported US-Turkey treaty rates for a payment category. Treaty eligibility and source rules depend on the full facts.
`deadline_calendar`read-only	Use to return common federal filing and payment dates for a selected filer or entity type. The user must verify the date for weekends, holidays, extensions, fiscal years, and special facts.
`decode_irs_notice`read-only	Use when a user provides the code from an IRS notice or letter and wants a general explanation, the usual response window, or the next procedural step. Do not request the notice itself or any taxpayer identifier.
`estimate_accountable_plan`read-only	Use to estimate potentially reimbursable business expenses under an accountable-plan scenario, including the split 2026 business-mileage rates. The result does not establish a plan or determine substantiation.
`estimate_augusta_rule`read-only	Use to screen the fewer-than-15-days home-rental rule under IRC 280A(g) and calculate conditional amounts. Keep the owner-side income exclusion separate from the business-side requirements for ordinary and necessary use and reasonable rent.
`estimate_irs_penalty`read-only	Use to estimate selected federal failure-to-file, failure-to-pay, and underpayment amounts from nonidentifying figures. The result is an estimate and does not replace an IRS account transcript.
`estimate_quarterly_taxes`read-only	Use to estimate federal quarterly tax payments from nonidentifying income, entity, withholding, and prior-year tax figures. Return the assumptions, safe-harbor context, and due dates.
`estimate_rental_income`read-only	Use to estimate a basic rental-income result from nonidentifying figures and identify the modeled depreciation, passive-loss, and personal-use limitations.
`explain_tax_document`read-only	Use when a user names a US tax form or information document and wants to understand its purpose, common fields, or usual return treatment. Do not request or accept the document itself.

Schemas: list_tools.

Also listed as

1 other active names share this repository: io.github.Bgenc48/arc-ledger-tax-tools

Similar MCP servers

Official server.json

{
  "name": "com.arcandledger/tax-tools",
  "title": "Arc & Ledger Tax Reference",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcp.arcandledger.com/directory/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.15.1",
  "repository": {
    "url": "https://github.com/Bgenc48/arc-ledger-mcp",
    "source": "github"
  },
  "websiteUrl": "https://www.arcandledger.com/mcp/directory/",
  "description": "Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates."
}