Tool 51 · Core Infrastructure · Card Economics

VDCAP Payload Auditor & Card Fee Optimizer

Paste a CNP payment payload and audit it against Visa's April 2026 VDCAP requirements. Detect missing fields, estimate annual fee savings, validate 3DS 2.x flags, and decode ISO 8583 bitmaps — entirely in-browser. Zero PII leaves the tab.

Zero PII · Client-Side Only VDCAP April 2026 ISO 8583 Decoder Fee Savings Estimator
Payload Input
Annual processing volume ($)
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VDCAP Compliance Score
Run an audit to see results.
Estimated Annual Fee Impact at Your Volume
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Fee Leakage / Year
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Recoverable Savings
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Data Quality Score
Field-by-Field Audit
StatusFieldImpact
ISO 8583 Bitmap Decoder

128-bit primary + secondary bitmap. Green cells = field present in message.

Click any bit cell to see the ISO 8583 field definition.
VDCAP Field Requirements (Apr 2026)
network_token
Network Token replaces PAN. Reduces fraud risk, improves auth rate.
0.05% fee reduction
device_id / device_fingerprint
Unique device identifier for fraud models.
0.02% fee reduction
ip_address
Originating IP for geolocation and velocity checks.
0.01% fee reduction
three_ds.eci / eci_indicator
3DS 2.x ECI flag prevents soft declines.
Reduces decline rate
billing_address (full)
AVS match improves approval rates.
~0.005% fee reduction
email / customer_email
Used in Visa's risk scoring engine.
Risk score improvement
shipping_address
For physical goods; reduces CNP fraud flags.
merchant_category_code
MCC for interchange routing accuracy.
Required Recommended Optional
Visa Interchange Tier Reference
CPS/Card Not Present1.80% + $0.10
CPS/e-Commerce Basic1.87% + $0.10
CPS/e-Commerce Preferred1.65% + $0.10
Verified by Visa (3DS)1.75% + $0.10
Network Token (VTS)1.58% + $0.10
VDCAP Full Compliance1.45%–1.55% est.

Rates are illustrative published benchmarks. Actual rates depend on your acquirer agreement and merchant tier.

3DS 2.x ECI Codes
05Full authentication — liability shifted to issuer
06Attempted auth — partial liability shift
07No 3DS — merchant retains chargeback liability