DVAP Duplicate Check
Never pay the same invoice twice
DVAP Duplicate Check flags duplicate supplier invoices before they're paid. It remembers a fingerprint of every document you check — byte-identical re-submissions and re-keyed copies are flagged with the rule that fired. Only the fingerprint is stored, never the document.
A single-purpose slice of DVAP — the same engine and measured accuracy. Need the full pipeline (extraction, matching, approvals, ERP export)? Upgrade any time.
What one call does
Exact-file match
A byte-identical re-submission — a re-sent attachment or re-uploaded PDF — is caught by its SHA-256 file hash (match_type: exact_file).
Same-details match
A different file carrying the same vendor, invoice number, and total — a re-scan, re-print, or re-keyed copy — is the double-payment risk (match_type: same_invoice_details).
Remembers every check
Each document you check makes the next check smarter. First sight returns clean and is remembered; the next occurrence is flagged.
Fingerprint only
Stores just the file hash, invoice number, total, and vendor name — scoped to your account, never the document itself. Add remember=false to only look.
One endpoint, one call
Send the invoice as multipart form-data (field file). Auth and billing are handled by RapidAPI — your key is all you need.
curl -X POST "https://dvap-duplicate-check.p.rapidapi.com/api/v1/invoices/duplicate-check" \
-H "X-RapidAPI-Key: YOUR_RAPIDAPI_KEY" \
-F "[email protected]"DVAP Duplicate Check pricing
Priced by monthly check volume, billed in USD through RapidAPI. Start free, upgrade when your volume grows — quotas and rate limits are enforced by the API, and upgrades apply from your next request.
Free
BASIC on RapidAPI
US$0 / mo
- 25 checks / month
- 30 requests / minute
- Named results, nothing stored beyond a fingerprint
Starter
PRO on RapidAPI
US$29 / mo
- 500 checks / month
- 60 requests / minute
- Named results, nothing stored beyond a fingerprint
Pro
ULTRA on RapidAPI
US$99 / mo
- 2,000 checks / month
- 120 requests / minute
- Named results, nothing stored beyond a fingerprint
Business
MEGA on RapidAPI
US$299 / mo
- 8,000 checks / month
- 300 requests / minute
- Named results, nothing stored beyond a fingerprint
Need extraction, PO matching, approvals, and ERP export too? The full DVAP API runs the same engine with every capability — and its own pricing by document volume.