Fraud-detection system that scores a payment as risky or safe while it's happening — checking the device, behavior and identity behind it — instead of catching fraud only after the money's already gone.
sardine.ai
Alternatives to
Unit21
Best alternatives to Unit21 in 2026
Catching fraud or money laundering is only half the job at a bank or fintech — once something's flagged, a risk team still has to investigate it, decide what to do, and often file a formal report with a regulator, all within strict compliance timelines. Unit21 is built for that whole operational chain: it lets a risk team write their own detection rules without needing an engineer, then gives them the tools to investigate a flagged case and generate the regulatory filing, in one connected system rather than several disconnected tools. Unit21 combines AI agents for real-time fraud detection and automated investigation with a no-code rule builder, a unified device-risk score, transaction monitoring, payment and sanctions screening, case management, automated regulatory filing (SARs, STRs, CTRs), graph analysis for uncovering hidden relationships between entities, and access to a fraud-data consortium covering 80M+ US adults. It reports representing roughly 5% of all Suspicious Activity Reports (SARs) filed in the US, monitoring 4.5 billion events monthly across 200+ institutional customers.
Quick comparison of Unit21 alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Banks | Fintechs | Payment processors | Merchants processing high-risk transactions | — | |
| 2 | Startups to enterprises needing SOC 2, ISO 27001, GDPR, HIPAA and similar compliance | — | |
| 3 | Startups to enterprises managing compliance requirements and third-party vendor risk | — | |
| 4 | IT & security teams | Enterprise organizations | Compliance/SOX teams | — | |
| 5 | Marketplaces | News & media platforms | Dating apps | Multi-country platforms | — | |
| 6 | Platforms with user-generated content | Trust & safety teams | Dating, marketplace and gaming apps | — | |
| 7 | Entreprises préoccupées par le biais algorithmique et la conformité IA à l'échelle (RH, finance, santé notamment) | — | |
| 8 | Grandes entreprises déployant de l'IA dans plusieurs équipes, avec des obligations réglementaires réelles (EU AI Act, NIST AI RMF, ISO 42001) | — | |
| 9 | Teams deploying AI agents; DevOps/SRE managing credential security for agentic workflows | — | |
| 10 | Banks, credit unions, fintechs, sponsor banks and cryptocurrency firms needing to orchestrate identity verification and fraud checks across many data providers | — | |
| 11 | Fintechs, marketplaces, gaming and travel platforms needing identity verification for compliance or fraud prevention | Startups without dedicated in-house compliance engineering | — | |
| 12 | Security engineers | Engineering teams at startups through Fortune 100 | — |
#1
- ✓ Real-time fraud scoring during the transaction, across many payment rails
- ✓ Fraud-intelligence consortium creates a genuine cross-customer network effect
#2
Tool that automatically checks whether a company's actual systems meet security certification requirements (like SOC 2), instead of someone manually screenshotting settings for an auditor once a year.
vanta.com
- ✓ Independently ranked as a Forrester Wave Leader in GRC Platforms
- ✓ 400+ integrations for continuous automated compliance monitoring
#3
Compliance automation tool that continuously watches a company's real systems and pulls the evidence a security auditor needs automatically, instead of a team assembling it by hand before every audit.
drata.com
- ✓ Continuous automated evidence collection across multiple frameworks
- ✓ Forward-looking agent-governance feature for monitoring AI agents
#4
Identity governance platform that discovers, manages and secures every human and non-human identity (including AI agents) across a company's SaaS and cloud apps.
zluri.com
- ✓ Covers non-human identities (service accounts, AI agents) — an emerging blind spot
- ✓ Automated access reviews for compliance frameworks
#5
Language-agnostic AI content moderation platform that filters abusive content, fraud and spam in real time across virtually any language or dialect.
utopiaanalytics.com
- ✓ Language-agnostic — works across any language/dialect, not just English
- ✓ Learns from a platform's own moderator decisions over time
#6
AI content moderation API that detects harmful text, images, video and audio (NSFW, hate speech, violence, CSAM, AI-generated content) at scale.
thehive.ai
- ✓ Multimodal: text, image, video, audio in one API
- ✓ Published usage-based pricing, no forced sales call at low volume
#7
A platform that started by checking AI systems for unfair bias and has grown into a full compliance dashboard — finding AI a company didn't even know it was using, and tracking whether all of it meets legal and ethical standards.
holisticai.com
- ✓ Héritage spécialiste de l'audit de biais algorithmique
- ✓ Librairie open source MIT testable sans contact commercial
#8
A control room for every AI system a company uses — tracking what exists, what risk it carries, and whether it meets legal requirements — so compliance doesn't mean chasing spreadsheets across departments when an audit or new regulation shows up.
credo.ai
- ✓ Reconnu Leader par Forrester Wave AI Governance
- ✓ Packs de conformité pré-construits pour les principales réglementations IA
#9
Open-source gateway that lets AI agents call APIs without ever seeing your real API keys — real secrets are injected transparently at the network level.
onecli.sh
- ✓ Open source and self-hostable under Apache 2.0
- ✓ Agents never see real credentials — placeholder tokens only
#10
Identity and fraud decisioning platform that connects a single API to 270+ data providers, letting banks and fintechs orchestrate KYC/KYB, fraud and transaction monitoring across the whole customer lifecycle.
alloy.com
- ✓ Single API orchestrating 270+ identity/fraud data providers
- ✓ Covers the entire customer lifecycle, not just initial onboarding
#11
Identity verification API for KYC, KYB and fraud checks — document scanning, selfie liveness checks, and no-code workflows to route or auto-approve verifications.
withpersona.com
- ✓ Startup-accessible pricing, not just enterprise minimums
- ✓ No-code workflow builder for non-engineering compliance teams
#12
AI-powered security platform combining automated pentesting, code review and cloud vulnerability scanning to find and fix exploitable issues before attackers do.
codeant.ai
- ✓ Agentic pentesting goes beyond static scanning to attempted exploitation
- ✓ Covers code (SAST), runtime (DAST), cloud (CSPM) and dependencies in one tool
FAQ about Unit21 alternatives
- What is the best alternative to Unit21 in 2026?
- Based on our selection, Sardine is the best alternative to Unit21 in 2026. Fraud-detection system that scores a payment as risky or safe while it's happening — checking the device, behavior and identity behind it — instead of catching fraud only after the money's already gone.. See our full ranking above to compare all options.
- Is Unit21 free?
- Unit21 is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Unit21 are there?
- mySelectas has listed 12 alternatives to Unit21 in the Security & Privacy category. Our selection is updated regularly to include the best options available.