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Coriunder

The acquiring access others will not give you.

If your vertical scares mainstream gateways - adult, nutra, gaming, forex, crypto, debt, dating - Coriunder gives you the routing, cascading and risk infrastructure to actually scale.

Schedule a demo Compliance
€
€89.00 · Visa · EUR
Nutra subscription · cascade on decline
A
Attempt 1
MID A · primary route
Declined
B
Attempt 2
MID B · next by BIN
Declined
C
Attempt 3
MID C · cascade step 2
Approved
Chargeback ratioThis month
0.8%
MID B · alert at 1.0%
MID A0.4%
MID B0.8%Watch
MID C0.2%
CardaqCardaq
Banking CircleBanking Circle
The Bank of LondonThe Bank of London
CodegoCodego
CrassulaCrassula
Fintech LabFintech Lab

For High-Risk Merchants: routing across acquirers willing to underwrite you

Routing across acquirers willing to underwrite your vertical, risk rules and chargeback management - in one console.

Level 1

PCI DSS certified

Automatic

Multi-MID cascading

50+

Risk rule data points

Built for the merchants the big gateways won't take

You need acquirers willing to underwrite your vertical, the routing logic to use them efficiently, and the chargeback infrastructure to defend yourself when disputes hit.

1Customer checks outHosted payment page
Nutra · 30-day pack
€89.00
3-D Secure
•••• •••• •••• 4242
04/27
Pay €89
2Card never touches your servers
Your site→Vault→MID
3Assessed every yearQualified Security Assessor
L1
PCI DSS Level 1
Hosted page or cashier: SAQ-A
Server-to-server: SAQ-D

PCI DSS Level 1

Coriunder is PCI DSS Level 1 certified and audited annually by a Qualified Security Assessor. Card data is captured, tokenised and stored inside our scope. Clients using the hosted payment page or cashier typically qualify for SAQ-A; server-to-server integrations require SAQ-D.

See the certifications
1Route by currency, BIN, country, value
EURBIN 4571DE€89Visa
2Retry on the next MIDAutomatic
AMID APrimary · code 05Declined
BMID BCascade step 1Approved
CMID CCascade step 2Not needed
3Sales recovered by cascadeLast 30 days
Recovered
€41,280

Multi-MID cascading

Cascade across MIDs by currency, BIN, country and transaction value. On decline, retry on the next configured MID automatically until success or exhaustion.

See acquiring orchestration
1Build a rule, no code50+ data points
If
Card attempts
> 3
per 24h
ThenApproveQueueBlock
2Every transaction is checked
€49.00Dating · IT · 1st tryApproved
€320.00BIN and IP country differQueued
€89.004th attempt in 24hBlocked
3Full audit trailWho, what, when
Velocity limit changed 5 → 3
risk@acme.com · 24 Oct 14:02
Logged

Risk rules

Build no-code risk rules across 50+ transaction data points. Auto-approve, queue or block based on your thresholds, with full audit trail.

See monitoring
1Chargeback arrivesPer transaction
CB
€89.00 · reason 10.4
TX 88412 · MID B · respond by 8 Nov
Open
2Respond from the platform
Order and delivery proofPDF
3-D Secure authenticationAttached
AcceptSubmit dispute
3Fee lands in the settlementAutomatic
Settlement · Acme NutraWeek 43
Processed€184,200
Chargebacks · 31−€2,759
Chargeback fees−€775

Chargeback management

Track chargebacks per MID and per transaction; respond to disputes through the platform; calculate chargeback fees automatically into settlements.

See settlement
1Chargeback ratio per MIDThis month
MID A0.4%
MID B0.8%
MID C0.2%
2Why payments decline
58%Issuer
31%Risk rules
11%Gateway
3Fees reconciled per acquirer
Acquirer AInvoiced €4,120Matched
Acquirer BInvoiced €2,980€35 diff

Reporting designed for compliance

Per-MID reporting with chargeback ratio tracking - the metrics your acquirers (and Visa / Mastercard monitoring programmes) actually care about.

See reporting
How it works

How high-risk merchants use Coriunder

1

Route

Cascade across MIDs by currency, BIN, country and transaction profile. Approval ratio improves; cost per approved transaction comes down.

2

Defend

Risk rules block obvious fraud before it processes. Chargeback management catches the rest and runs the dispute response.

3

Report

Chargeback ratios per MID, decline reason analysis, fee reconciliation - the views your compliance team and acquirer relations need.

Frequently asked questions

  • Do you support my vertical?

    Coriunder is built for verticals that mainstream gateways decline. The routing and risk tooling works the same for every vertical; acceptance depends on the acquirers you connect or that we connect you to. Talk to our team about yours.

  • How does multi-MID cascading work?

    You define the cascade order - by currency, BIN range, country or transaction value. On a decline, the engine retries on the next configured MID until success or exhaustion.

  • Can I bring my own acquirer contracts?

    Yes - the platform is provider-agnostic; bring your own acquirer, PSP or banking contracts or use ours.

  • How do you help with chargebacks?

    Chargebacks are tracked per MID with ratio monitoring against scheme thresholds. Disputes run through the platform with response workflows; chargeback fees flow into settlement automatically.

  • Can I run risk rules per merchant or product?

    Yes. The rules engine is configurable per merchant, per MID and per product - you can run different risk thresholds for different parts of your business.

  • Where is data hosted?

    Coriunder is hosted in the EU.

Still have a question?

Ready to run high-risk traffic on Coriunder?

Talk to our team - we'll scope your vertical, your acquirer mix and your chargeback profile.

See the checkout Talk to our team

Security and compliance documentation is available under NDA. Talk to our team to request access.