Arc & Ledger Tax Reference
mcp remote · streamable-http · v0.15.1 · source: crawl
https://mcp.arcandledger.com/directory/mcp
https://github.com/Bgenc48/arc-ledger-mcp
Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates.
Works
100
Verified Oct 31, 2026 · p50 430 ms · p95 552 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'arc-ledger-mcp' |
| tools_listed | 15 | pass | 13 tools |
| schema_complete | 15 | pass | 13 of 13 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 430 ms |
| latency_p95 | 5 | pass | p95 552 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (13)
| Name | Description | Schema |
|---|---|---|
decode_irs_notice | 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 | typed |
check_resolution_options | 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 fi | typed |
estimate_irs_penalty | 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. | typed |
explain_tax_document | 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. | typed |
deadline_calendar | 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. | typed |
check_fbar_fatca | 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. | typed |
check_treaty_withholding | 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. | typed |
check_itin_eligibility | 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. | typed |
check_5472_obligation | 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. | typed |
estimate_quarterly_taxes | 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. | typed |
estimate_accountable_plan | 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 substa | typed |
estimate_augusta_rule | 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 ordinar | typed |
estimate_rental_income | Use to estimate a basic rental-income result from nonidentifying figures and identify the modeled depreciation, passive-loss, and personal-use limitations. | typed |
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