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Developers

Public API and agent resources

Use these read-only resources to help AI agents understand CukaiMax, discover public tax reference data, and route users to the right product surface.

  • Product overview

    Explain what CukaiMax does for Malaysian taxpayers and when it is a good fit.

    /api/v1/capabilities
  • Versioned tax authority

    Search source-linked Form BE and Form B rules, assess Form B readiness, inspect YA2026 planning changes, compile review-gated YA2025 BE drafts, preserve audit events, and evaluate agents through MCP.

    /.well-known/mcp
  • Site question answering

    Answer common natural-language questions about CukaiMax and the public tax resources on the site.

    /ask

Open endpoints

Open endpoints
MethodPathDescription
GET/api/v1/capabilitiesPublic capability list for CukaiMax agent integrations.
GET/api/v1/tax-reliefsPublic Malaysia tax relief reference data.
POST/askNLWeb-style natural-language question endpoint.
POST/.well-known/mcpRate-limited Streamable HTTP MCP for YA2025 Form BE, Form B readiness, YA2026 planning, audit events, and agent evaluation resources.

Tax Authority MCP

Connect an agent to source-linked YA2025 Form BE and Form B rules, deterministic BE drafts, Form B readiness, and non-filing YA2026 planning changes.

Source reviewed · capability bounded
MCP endpoint · Streamable HTTP
https://www.cukaimax.com/.well-known/mcp
Tools
ToolWhat it does
list_tax_authority_releasesDiscover supported years, forms, versions, and capabilities.
get_tax_authority_releaseInspect a release, sources, validation, and review state.
search_tax_authorityFind cited Form BE or Form B rules by topic or field.
prepare_be_2025_draftCompile supplied inputs into review-gated Form BE fields.
assess_form_b_2025_readinessCheck Form B accounts, worksheets, schedules, and evidence readiness.

Drafts are never submitted to MyTax. Agents must preserve blockers, warnings, citations, source hashes, and authority status.

Your account: CukaiMax MCP

A separate server for CukaiMax users. Connect ChatGPT, Claude or Grok to your own tax position, reliefs, receipts and next actions. It needs a CukaiMax account and your OAuth consent, and it is read-only.

Read-only · OAuth consent
Account MCP endpoint · Streamable HTTP · OAuth 2.1
https://app.cukaimax.com/api/mcp
  • ChatGPT

    Developer Mode, add a custom connector with the URL and OAuth. ChatGPT sends you to CukaiMax to sign in and approve.

  • Claude

    Add a custom connector with the URL. Claude sends you to CukaiMax to sign in and approve.

  • Grok

    Add a custom connector with the URL. Grok sends you to CukaiMax to sign in and approve.

Account MCP tools
ToolWhat it reads
get_tax_positionTax, refund or balance for the year, and relief room left.
list_reliefsReliefs with room, awaiting an answer, or missing proof.
get_relief_detailWhy one relief is the amount it is, with its receipts.
list_transactionsReceipts by category, merchant, date, status or claim state.
get_next_actionsWhat to do before filing.

Assistants cannot change anything: no adding, editing or deleting receipts, no uploads, nothing sent to MyTax. Disconnect any assistant from Settings, Connected apps. 120 calls a minute and 2,000 a day per user.

Discovery documents

Next steps for agents