Vietnam Invoices (MISA meInvoice create, publish & query) MCP server

STEP 1 of the MISA meInvoice flow: create a Vietnamese e-invoice (hóa đơn điện tử) draft on MISA — the POST /itg/invoicepublishing/createinvoice call. You supply seller, buyer and line items; this server computes the Vietnamese VAT (thuế GTGT) math locally in VND (integer đồng — no decimals) and forwards the payload. MISA returns a transaction_id, ref_id and invoice_data (an UNSIGNED invoice XML). This server does NOT sign: you then sign invoice_data MERCHANT-SIDE with your own digital signature / USB Token (chữ ký số) using the MISA local signing service, and pass the signed XML to publish_invoice (STEP 3). VAT rates: 10 (standard), 8 (temporary reduced), 5 (essentials), 0 (exports). Set withCode=true if you issue invoices WITH a tax-authority code (hóa đơn có mã); default false (không mã). Result accepted=true when MISA created the draft with no per-document error (check error_code). Required credential headers (set once in your MCP client, per-request, never stored): x-meinvoice-token (your MISA meInvoice access token) + x-meinvoice-taxcode (your company tax code / MST, sent as CompanyTaxCode). Optional header x-meinvoice-env: test (default = sandbox testapi.meinvoice.vn, no fiscal effect) | prod (production api.meinvoice.vn, real fiscal effect). Optional owner-policy headers x-agentpay-max-amount / x-agentpay-approval-above / x-agentpay-allowed-tools. All amounts are in VND (đồng, whole numbers — no decimals).

STEP 3 of the MISA meInvoice flow: publish an ALREADY-SIGNED e-invoice — the POST /itg/invoicepublishing call. After create_invoice returns invoice_data (unsigned XML) and you sign it MERCHANT-SIDE with your USB Token (chữ ký số) via the MISA local signing service, pass the signed XML back here with its transaction_id and ref_id. MISA submits it to the tax authority (Tổng cục Thuế) and returns the official inv_no (số hóa đơn), inv_code (mã cơ quan thuế, for coded invoices) and inv_series. This server does NOT sign — it only forwards the signed document. Set withCode to match how the invoice was created. Result accepted=true when MISA published with no per-document error (check error_code); common errors: SignatureEmpty, InvalidSignature, InvoiceNumberNotContinuous, InvoiceDuplicated. Required credential headers (set once in your MCP client, per-request, never stored): x-meinvoice-token (your MISA meInvoice access token) + x-meinvoice-taxcode (your company tax code / MST, sent as CompanyTaxCode). Optional header x-meinvoice-env: test (default = sandbox testapi.meinvoice.vn, no fiscal effect) | prod (production api.meinvoice.vn, real fiscal effect). Optional owner-policy headers x-agentpay-max-amount / x-agentpay-approval-above / x-agentpay-allowed-tools. All amounts are in VND (đồng, whole numbers — no decimals).

Look up the status of one or more published e-invoices — the POST /itg/invoicepublished/invoicestatus call (read-only). Pass the transaction_id(s) returned by create_invoice/publish_invoice. Result per invoice: publish_status (MISA SaveInvoiceStatus int — draft/published state), send_tax_status + send_tax_status_label = the tax-authority (cơ quan thuế) submission status. For invoices WITHOUT a code (không mã): 0=not sent, 1=sent, 2=accepted, 3=rejected, 4=send error. For invoices WITH a code (có mã, withCode=true): 0=awaiting code, 1=send error, 2=code issued, 3=code rejected. Also returns invoice_code, reference_type (0=original, 1=replacement, 2=adjustment), is_deleted and received_status (0=not received, 1=received). Set withCode to match the invoice type. Required credential headers (set once in your MCP client, per-request, never stored): x-meinvoice-token (your MISA meInvoice access token) + x-meinvoice-taxcode (your company tax code / MST, sent as CompanyTaxCode). Optional header x-meinvoice-env: test (default = sandbox testapi.meinvoice.vn, no fiscal effect) | prod (production api.meinvoice.vn, real fiscal effect). Optional owner-policy headers x-agentpay-max-amount / x-agentpay-approval-above / x-agentpay-allowed-tools. All amounts are in VND (đồng, whole numbers — no decimals).