Optional Receipt Verification And Validation

Security gateway for MCP servers. Shadow-mode logs, per-tool policies, optional Ed25519-signed receipts. npx protect-mcp -- node server.js

Unique: Provides asymmetric verification where the public key can be freely distributed without compromising security, enabling third-party auditors to verify receipts without access to the gateway's private key. Verification is decoupled from receipt generation, allowing offline verification.

vs others: More scalable than symmetric verification (HMAC) because the public key can be shared with unlimited third parties. More transparent than centralized verification services because verification can be performed locally without contacting the gateway

via “manual-receipt-data-correction”

via “expense receipt capture and ocr-based data extraction”

Unique: Combines OCR with transaction matching logic to automatically link receipt data to bank transactions, creating a complete audit trail without manual reconciliation between receipt and transaction records

vs others: More convenient than Expensify or Concur because it integrates receipt capture directly into the accounting workflow rather than requiring separate expense report submission

via “duplicate receipt detection and deduplication”

Unique: Implements fuzzy matching on merchant names combined with exact matching on date+amount to reduce false positives, rather than relying on single-field matching which would flag legitimate receipts from the same vendor on the same day

vs others: More sophisticated than simple amount-based deduplication, but less intelligent than ML-based fraud detection used by enterprise platforms; suitable for preventing accidental duplicates but not sophisticated fraud