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Arc & Ledger Tax Reference

connects

mcp.arcandledger.com

Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates.

https://mcp.arcandledger.com/directory/mcpWebsiteNo authMCP 2025-11-25v0.15.6last checked 24 Aug 2026spoke MCP on 2 of 2 checks (30 days)initialize in 429 ms

How to authenticate

Checked against the endpoint by our probe on 24 Aug 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme
No auth
Protected-resource metadata
✕Not found

Without it a client has to guess where the authorization server lives.

Anonymous access
Handshake succeeds; 13 tools listable

Tools

check_5472_obligationcheck_fbar_fatcacheck_itin_eligibilitycheck_resolution_optionscheck_treaty_withholdingdeadline_calendardecode_irs_noticeestimate_accountable_planestimate_augusta_ruleestimate_irs_penaltyestimate_quarterly_taxesestimate_rental_incomeexplain_tax_document

Contract history

24 Aug 2026v0.15.6first recorded contract

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MCP status badge for Arc & Ledger Tax Reference
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