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vrsai Invoice Match
x402
vrsai Invoice Match is a paid API for AI agents from api.vrsai.tech, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Validates a supplier invoice against purchase orders, cumulative receipts, prior invoicing history, and tolerance policy before approving payment.
Price / call$0.05
Success—
StatusUnknown
How this service works
Match a supplier invoice against purchase orders, cumulative receipts, prior invoicing, and tolerance policy before payment approval.
Output
Returns a match result indicating whether the invoice is approved, rejected, or flagged for review, along with details on any discrepancies found between the invoice, purchase orders, cumulative receipts, and prior invoicing. Includes tolerance policy assessment and specific line-item or amount variances.
Example use cases
Block duplicate supplier invoice
“We received another invoice from GlobalParts Inc. for $8,200 — can you check it against prior invoicing records for the same PO to make sure we haven't already paid this or something very close to it?”
Tolerance check before payment run
“Before we release payment on this $52,000 invoice from TechLogix, validate it against the purchase order and cumulative receipts and tell me whether it's within our 2% tolerance policy or if we need to put it on hold.”
Three-way match for partial delivery
“Our warehouse only received part of this order from SteelCo but the invoice is for the full amount — match it against the PO and the partial receipt records and tell me exactly where the discrepancy is.”
Technical details
Endpoint
POSThttps://api.vrsai.tech/v1/capabilities/invoice_match/versions/1.0.0/executeWhen to prefer
Use this endpoint when you need a structured, policy-aware pre-payment validation of supplier invoices that goes beyond simple amount matching — specifically when you need 3-way matching (PO + receipt + invoice), cumulative billing history checks, and tolerance policy enforcement in a single automated step before accounts payable approval.
Side effects
- Missing or unresolvable PO reference causes match failure
- Invoice already fully invoiced — duplicate detected and rejected
- Amount exceeds tolerance threshold — returned as flagged rather than approved
- Incomplete receipt data prevents cumulative comparison
- Malformed invoice body causes validation error
- Payment already approved for this invoice — idempotency check triggers warning
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"checks": [
{
"id": "duplicate_invoice_number",
"status": "PASS",
"evidence": {
"duplicate_scope": "supplier_id+invoice_number",
"duplicate_history_supplied": false
}
},
{
"id": "prior_invoicing_evidence",
"status": "PASS"
},
{
"id": "receipt_evidence_snapshot",
"status": "PASS"
},
{
"id": "invoice_subtotal_arithmetic",
"status": "PASS",
"evidence": {
"computed_subtotal_minor": "42000",
"declared_subtotal_minor": "42000"
}
},
{
"id": "invoice_total_arithmetic",
"status": "PASS",
"evidence": {
"computed_total_minor": "42000",
"declared_total_minor": "42000"
}
},
{
"id": "invoice_line_po_resolution",
"status": "PASS",
"invoice_line_id": "line_1"
},
{
"id": "currency_match",
"status": "PASS",
"purchase_order_id": "PO-1001"
},
{
"id": "supplier_match",
"status": "PASS",
"purchase_order_id": "PO-1001"
},
{
"id": "unit_of_measure_match",
"status": "PASS",
"evidence": {
"po_unit_of_measure": "EA",
"invoice_unit_of_measure": "EA"
},
"po_line_id": "10",
"invoice_line_id": "line_1",
"purchase_order_id": "PO-1001"
},
{
"id": "price_basis_match",
"status": "PASS",
"po_line_id": "10",
"invoice_line_id": "line_1",
"purchase_order_id": "PO-1001"
},
{
"id": "cumulative_quantity_vs_ordered",
"status": "PASS",
"po_line_id": "10",
"purchase_order_id": "PO-1001"
},
{
"id": "cumulative_quantity_vs_received",
"status": "PASS",
"evidence": {
"cumulative_invoiced": "10",
"cumulative_received": "10"
},
"po_line_id": "10",
"purchase_order_id": "PO-1001"
},
{
"id": "unit_price_tolerance",
"status": "BLOCK",
"evidence": {
"tolerance_bps": 200,
"po_unit_price_minor": "4000",
"invoice_unit_price_minor": "4200"
},
"po_line_id": "10",
"reason_code": "UNIT_PRICE_OUTSIDE_TOLERANCE",
"invoice_line_id": "line_1",
"purchase_order_id": "PO-1001"
},
{
"id": "line_total_arithmetic",
"status": "PASS",
"po_line_id": "10",
"invoice_line_id": "line_1",
"purchase_order_id": "PO-1001"
}
],
"totals": {
"computed_total_minor": "42000",
"declared_total_minor": "42000",
"computed_subtotal_minor": "42000",
"declared_subtotal_minor": "42000"
},
"invoice": {
"id": "inv_internal_883",
"currency": "EUR",
"supplier_id": "supplier_123",
"invoice_number": "INV-883",
"lines_evaluated": 1,
"purchase_orders_referenced": [
"PO-1001"
]
},
"coverage": {
"evidence": {
"receipts_complete": true,
"prior_invoicing_complete": true,
"duplicate_history_supplied": false
},
"match_mode": "three_way",
"checks_performed": [
"duplicate_invoice_number",
"invoice_line_po_resolution",
"currency_and_supplier_match",
"unit_of_measure_and_price_basis",
"cumulative_quantity_vs_ordered",
"cumulative_quantity_vs_received",
"unit_price_tolerance",
"line_total_arithmetic",
"invoice_subtotal_arithmetic",
"invoice_total_arithmetic"
],
"checks_not_performed": [
"document_authenticity_verification",
"ocr_or_pdf_extraction",
"product_description_or_sku_fuzzy_matching",
"erp_or_wms_retrieval",
"supplier_identity_verification",
"tax_determination",
"fx_conversion",
"uom_conversion",
"payment_execution",
"accounting_posting",
"invoice_line_multi_po_allocation",
"credit_note_processing"
],
"complete_for_declared_scope": true
},
"decision": "BLOCK",
"line_results": [
{
"units": {
"po_unit_of_measure": "EA",
"invoice_unit_of_measure": "EA",
"po_price_basis_quantity": "1",
"invoice_price_basis_quantity": "1"
},
"pricing": {
"tolerance_bps": 200,
"po_unit_price_minor": "4000",
"absolute_delta_minor": "200",
"invoice_unit_price_minor": "4200"
},
"decision": "BLOCK",
"quantity": {
"ordered": "10",
"current_invoiced": "10",
"cumulative_invoiced": "10",
"cumulative_received": "10",
"previously_invoiced": "0",
"remaining_order_after_current": "0",
"remaining_received_after_current": "0"
},
"po_line_id": "10",
"reason_codes": [
"UNIT_PRICE_OUTSIDE_TOLERANCE"
],
"invoice_line_id": "line_1",
"purchase_order_id": "PO-1001"
}
],
"reason_codes": [
"UNIT_PRICE_OUTSIDE_TOLERANCE"
],
"machine_action": "DO_NOT_APPROVE",
"ruleset_version": "1.0.0",
"input_fingerprint": "v1:2c0e0b727e0602244be927bc4215abff15a0323e44cc73ebe781b9860aabf71d"
}
}Tags
x402
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