{
  "name": "AfterTaxUS tools and AI connections",
  "updated": "2026-09-15",
  "documentation": "https://aftertaxus.com/ai-tax-tools.html",
  "webTools": [
    {
      "name": "Investment comparison",
      "url": "https://calculator.aftertaxus.com/",
      "priceUSD": 0,
      "accountRequired": false,
      "scope": "Two investments; incremental federal/state tax estimate; illustrative sample yields."
    },
    {
      "name": "Income calculator",
      "url": "https://aftertaxus.com/calculator.html",
      "priceUSD": 0,
      "accountRequired": false,
      "scope": "Broad income estimate using backend federal/state and supported local tax settings."
    },
    {
      "name": "Portfolio app",
      "url": "https://aftertaxus.com/app/",
      "priceUSD": 0,
      "accountRequiredToSave": true,
      "scope": "Multiple accounts and income rows; authorized MCP connector; what-ifs; baseline; saved versions; tax breakdowns; supported local and W-2 payroll settings."
    }
  ],
  "connections": [
    {
      "name": "Public tax engine",
      "endpoint": "https://aftertaxus.com/mcp-tax",
      "protocol": "MCP",
      "transport": "streamable-http",
      "authentication": "none",
      "priceUSD": 0,
      "accountRequired": false,
      "supportedTaxYears": [
        2025
      ],
      "toolSchemas": "https://aftertaxus.com/tax-engine-tools.json",
      "tools": [
        "get_tax_engine_info",
        "list_state_tax_profiles",
        "list_local_tax_profiles",
        "calculate_tax_plan",
        "compare_tax_plans"
      ],
      "scope": "Explicit input-based planning calculations and comparisons only. No workbook access, tax-plan persistence, market lookup or arbitrary network requests. Anonymous aggregate abuse counters are stored.",
      "limits": {
        "bodyBytes": 65536,
        "plansPerComparison": 2,
        "sourceRequestsPerMinute": 30,
        "sourceRequestsPerTenSeconds": 8,
        "sourceCalculationRequestsPerMinute": 10,
        "regionalRequestsPerMinute": 120,
        "globalRequestsPerMinute": 120,
        "globalRequestsPerUtcDay": 5000,
        "globalPlansPerMinute": 30,
        "globalPlansPerUtcDay": 2000,
        "bodyReadTimeoutMs": 5000
      },
      "limitations": [
        "Only the documented 2025 model; not a complete tax return or 2026 calculation.",
        "Caller supplies separately classified federal, state, local and NIIT inputs and allowed deductions.",
        "No AMT, QBI, credits, self-employment tax or complete locality/eligibility coverage.",
        "Source/regional limits are approximate per Cloudflare location; source IPs can be shared by AI providers/proxies. Global admission quotas are atomic and shared across all hosts and locations. A comparison counts as two plans. Rejected traffic still uses infrastructure; this is not a guarantee of DDoS immunity or zero hosting cost."
      ]
    },
    {
      "name": "Private portfolio connector",
      "baseUrl": "https://www.aftertaxus.com/mcp-v6",
      "protocol": "MCP",
      "transport": "streamable-http",
      "authentication": "App-generated private credentials required",
      "accountRequired": true,
      "setup": "Sign in to https://aftertaxus.com/app/ and use your own generated connector URL in a trusted client's MCP settings.",
      "scope": "Authorized workbook reads and edits, individual and bulk investment updates, WhatIf controls, portfolio tax calculations, separate visual highlighting and row inclusion.",
      "credentialSafety": "Never publish token-bearing URLs. Public discovery is not authorization to access a workbook."
    }
  ],
  "clientSupport": "Requires a client that supports custom remote MCP and enables the tools for the conversation. Directory listings do not install or authorize a connection; external AI plans may cost money.",
  "privacy": "https://aftertaxus.com/privacy.html",
  "terms": "https://aftertaxus.com/terms.html"
}