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What Greip is

Greip is a risk API for online businesses: it checks payment details, scores transaction risk, flags anonymising proxies and adds basic content filtering, all through one integration.

What you can do with it

  • Score payments before fulfilment
  • Verify IBANs and card issuers
  • Flag VPN and proxy traffic
  • Filter profane or spam submissions
  • Combine signals into one risk view

Who it is for

  • Fintech and payment teams
  • E-commerce platforms
  • Online services fighting abuse

What to watch out for

  • Category misplacement: fraud prevention infrastructure, not content moderation
  • VPN detection flags privacy-conscious legitimate users; blanket blocking costs customers
  • Fraud scores misjudge edge cases; thresholds and appeal paths matter
  • IP and payment data are personal data; processing terms need review

Pros & cons

✓ What we like

  • Many risk signals in one API
  • Developer-friendly integration
  • Free entry described

! What to watch out for

  • False flags on privacy users
  • Threshold tuning needed
  • Personal data processing

FAQ

Should I block all VPN users?

No. Many legitimate users use VPNs; score rather than blanket-block.

Is it free?

Free entry is described; confirm limits.

How accurate is fraud scoring?

Directionally useful; tune on your own transaction data.

Last reviewed: 2026-09-19

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