Ravelin
Ravelin is a London-based fraud detection and prevention platform offering AI-native, real-time decisioning APIs for online merchants. Their products cover payment fraud, chargeback recovery, account takeover (ATO) protection, refund and policy abuse, marketplace and supplier fraud, and a PSP-agnostic 3D Secure server. Ravelin combines per-merchant machine learning models, graph network analysis, and a consortium database of identity signals to score every customer interaction across checkout, login, registration, and post-transaction events.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Ravelin the way a machine reads it — 44 machine-readable artifacts across 13 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Ravelin scores 49.6/100 (developing), with a separate agent-readiness read of 41/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Ravelin
Each block below is one kind of artifact we hold for Ravelin. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 13
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Ravelin PSP API
A purpose-built API surface for Payment Service Providers (PSPs) embedding Ravelin's risk scoring and dispute capture into their own merchant-facing product. Exposes Score, Tran...
Ravelin Callbacks API
Outbound webhook callbacks delivered by Ravelin to merchant-configured endpoints when manual reviews, order decisions, or refund decisions are completed in the Ravelin dashboard...
Ravelin 3D Secure API
EMV 3DS 2.x authentication operations.
Ravelin Authentication API
Login and registration events for account takeover scoring.
Ravelin Checkout API
Pre-payment order risk scoring.
Ravelin Connect API
Cross-merchant identity and signal sharing.
Ravelin Customer API
Customer profile, identity, and label events.
Ravelin Disputes API
Chargebacks, disputes, and reclaim events.
Ravelin Payouts API
Outbound payouts to suppliers and recipients.
Ravelin Refunds API
Refund requests and decisioning.
Ravelin Supplier API
Supplier, driver, courier, and seller events for marketplace risk.
Ravelin Transactions API
Payment attempts, captures, refunds, and authorizations.
Ravelin Vouchers API
Voucher, promo, and payment-method voucher events.
Scroll within the panel for all 13 ·
Open Collections 3
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Ravelin 3D Secure Server API
OPEN COLLECTIONRavelin Callbacks API
OPEN COLLECTIONRavelin Merchant API
OPEN COLLECTIONFeatures 8
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Per-Merchant Machine Learning
Custom ML models trained and tuned to each merchant's traffic, products, and fraud patterns rather than a single global model.
Graph Network Analysis
Link analysis across customers, devices, payment instruments, and addresses to surface hidden fraud rings and shared-identity clusters.
Consortium Identity Database
A shared identity-signals consortium spanning 9+ billion identity elements used to enrich risk scoring across all merchants.
Real-Time Decisioning
ALLOW / REVIEW / PREVENT decisions returned synchronously on every checkout, login, registration, voucher, and transaction event.
PSP-Agnostic 3D Secure
A 3DS Server that works with any acquirer or PSP, supports dynamic exemption routing, and is bundled with native iOS and Android 3DS SDKs.
Manual Review Workflow
Built-in dashboard for human review of borderline cases with webhook callbacks to sync decisions back to the merchant's order management system.
Rules Engine
Merchant-authored rules layered on top of ML scores, executed in active or passive mode so new rules can be safely shadow-tested before going live.
Per-Customer Rate Limiting
A built-in 50 events-per-minute-per-customer guardrail that returns a PREVENT action with source RATE_LIMIT to defend against scripted abuse.
Scroll within the panel for all 8 ·
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 6
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Online Payment Fraud and Chargeback Prevention
Scoring checkout and transaction events to block fraudulent orders before they ship and reduce card scheme chargebacks.
Account Takeover (ATO) Protection
Risk-scoring login events to detect credential stuffing, breach reuse, and session hijacking attempts in real time.
Refund and Policy Abuse
Detecting customers who systematically exploit refund, return, and goodwill policies across orders and channels.
Promo, Voucher, and Loyalty Abuse
Scoring voucher and promo redemption events to stop bonus stacking, multi-accounting, and referral fraud.
Marketplace and Supplier Fraud
Risk-scoring suppliers, drivers, couriers, sellers, and other marketplace participants to detect collusion and onboarding fraud.
3D Secure and SCA Optimization
Running EMV 3DS 2.x authentication through Ravelin's 3DS Server with dynamic exemption routing to maximize approval and shift liability where appropriate.
Integrations 5
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
Payment Service Providers
Integrates with major PSPs and acquirers via the PSP API and the PSP-agnostic 3DS Server.
Order Management Systems
Order, refund, and manual-review decisions are pushed to downstream OMS via webhook callbacks.
iOS Applications
Native iOS Core, Encrypt, and 3DS SDKs distributed as XCFrameworks.
Android Applications
Native Android Core and 3DS SDKs with bundled ProGuard rules.
Web Applications
RavelinJS browser SDK for device fingerprinting, encryption, and 3DS browser flows.
Solutions 5
Packaged solutions the provider offers on top of the raw API surface.
Packaged solutions this provider offers.
Payment Fraud
End-to-end protection of the checkout and transaction surface for online merchants.
Account Security
Login, registration, and credential-event scoring for ATO prevention.
Refund Abuse
Detection of refund and return abuse across orders and channels.
Marketplace Risk
Supplier, courier, and seller risk scoring for marketplaces and gig platforms.
3D Secure and Transaction Optimization
PSP-agnostic 3DS Server with exemption routing and native mobile SDKs.
Resources
Every other property we hold for Ravelin — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 7
SDKs, sample code, and the tooling you integrate with
Scroll within the panel for all 7 ·
Access & Security 6
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 5
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/ravelin · machine-readable index on apis.io