Every euro disbursed is a euro verified.
The AEC-RE industry estimates that 3 to 5% of subcontractor invoices contain errors, duplicates or overbilling. Stop the financial haemorrhage instantly.
Validating an interim payment certificate requires cross-referencing the original contract, the variations, the Schedule of Rates, and the reality on site. Humans do not have the time to do it line by line. The Procurement Master does it with absolute rigour, in real time.
Financial validation no longer relies on trust, but on data
Give absolute control back to your Quantity Surveyors, Procurement Managers and Finance Directors.
Uncompromising validation across 10 criteria
When an invoice or an interim payment certificate is uploaded to OneDrive, the Agent intercepts it and performs a cross-audit. Is it compliant with the contract? (Legal Check) Do the invoiced quantities match the site reality? (Operations Check) Are the Schedule of Rates unit prices accurate? (Estimation Check) Has the retention been deducted? Has the claimed variation been duly signed?
Anti-duplicate and anti-fraud detection
The Agent memorises the history of each project across multiple memory stores (RAG, Knowledge Graph, timeline, documents). It instantly detects whether a service has already been invoiced the previous month under a slightly different description.
Administrative compliance
Before proposing payment, the Agent verifies the validity of the subcontractor's mandatory documents (Social Security Compliance certificates, Decennial Liability Insurance, Company Registration Certificate). If a document has expired, the Agent blocks the payment and prepares the reminder email.
ERP integration (structured JSON output)
Forget double entry. The Procurement Master generates a structured validation file (article codes, net/gross amounts, cost centres and variances identified) ready to be ingested by your accounting software (SAP, Microsoft Dynamics, Navision) via our MCP integrations.
10 criteria. Zero tolerance.
$ agent.procurement --validate="INVOICE_2026-03-ST047.pdf" --project="RESIDENCE_ALPINA"
Supplier: Durand Plumbing | Contract: WP-07 | Interim certificate no.4 of 8
[01] Contract compliance (CCAP).........PASS Legal Master
[02] Valid purchase order...............PASS PO-2026-0347
[03] Quantities vs actual progress......FAIL Operations Master
[04] Schedule of Rates unit prices......PASS Estimation Master
[05] 5% retention......................PASS -6,840 EUR deducted
[06] Signed variation..................PASS VAR-03 valid
[07] Historical duplicate..............PASS No duplicate detected
[08] Social Security / Decennial........WARN Decennial expires in 14 days
[09] Company Registration up to date....PASS Valid 2026-09-15
[10] ERP structure (JSON)..............PASS Export SAP ready
The memory that lets nothing slip through
The guarantee of your profitability
The fastest ROI in the AEC-RE market.
The Procurement Master does not cost — it pays for itself.
On a 10 million euro project, blocking a single 1% invoicing error saves 100,000 EUR. The Vonbuild OS delivers the most staggering return on investment in the AEC-RE industry.
Savings on a 10M EUR project
Per invoice instead of 45 min
Overbilling detected and blocked
Scenario: 500 invoices on the 25th of the month
On the 25th of the month, 500 invoices arrive at once. Your 3-person procurement team would need 8 days to verify everything. The Procurement Master deploys 50 workers in parallel and completes the job in 45 minutes.
Deployment
50 agents in parallel
Cross-audit
10 criteria per invoice, 3 Masters consulted
Alerts
47 variances identified, 38,000 EUR of overbilling
Processing
Resolution and payment release
50 agents in parallel
The Procurement Master receives the 500 invoices and deploys 50 workers. Each worker processes 10 invoices. For each invoice: OCR, supplier and contract identification, amount extraction, reconciliation with the purchase order. In 10 minutes, all 500 invoices are extracted and classified.
Submit your most complex interim payment certificate
Send a batch of real invoices. The Procurement Master cross-references them against your contracts and site progress across 10 criteria, then flags every variance. 15-day trial, 10 EUR/CHF.