Silverflow
Silverflow is an Amsterdam-based cloud-native card processing platform that connects acquirers, payment service providers, payment facilitators and merchants directly to the card networks (Visa, Mastercard, Amex, Discover, Diners, Maestro, Bancontact) through a single REST API. Founded in 2019, the company replaces legacy acquiring processor infrastructure with a contract-first, OpenAPI 3.0-described platform covering merchant and acceptor onboarding, 3-D Secure and BEP authentication, processor and network tokenization, authorization, clearing and settlement, incremental authorizations, reversals, refunds and payouts, terminal-to-cloud POS charges, ATM card management, dispute and chargeback handling, fraud notifications, transaction risk assessment, interchange and scheme-fee estimation, and a full reconciliation and reporting suite. The Silverflow API exposes 137 operations across 101 paths, emits 31 CloudEvents 1.0 webhook notifications through an event-subscription surface, and publishes a sandbox with amount-driven authorization test scenarios.
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 Silverflow the way a machine reads it — 56 machine-readable artifacts across 2 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 — Silverflow scores 51.3/100 (developing), with a separate agent-readiness read of 37/100 (agent ready). 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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-01 · rubric v0.18.0
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How we profile Silverflow
Each block below is one kind of artifact we hold for Silverflow. 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 50
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.
Silverflow 3DS Authentication API
3DS Authentication Endpoints
Silverflow BEP Authentication API
The BEP Authentication API from Silverflow — 3 operation(s) for bep authentication.
Silverflow Card Info API
Provides information from the card networks about Card Ranges.
Silverflow Card Management API
ATM card management actions: PIN change, PIN unblock, balance inquiry and PIN change reversal.
Silverflow Card Network Reports API
The Card Network Reports API from Silverflow — 2 operation(s) for card network reports.
Silverflow Charge Actions API
Perform different actions on existing charges.
Silverflow Charges Reports API
The Charges Reports API from Silverflow — 1 operation(s) for charges reports.
Silverflow Create Charges API
Create different types of charges.
Silverflow Create POS Charges API
Create a POS charge.
Silverflow Create Recurring API
Create different types of recurring charges.
Silverflow Currency Conversion Rates API
The Currency Conversion Rates API from Silverflow — 1 operation(s) for currency conversion rates.
Silverflow Dispute Reports API
The Dispute Reports API from Silverflow — 1 operation(s) for dispute reports.
Silverflow Disputes API
The Disputes API from Silverflow — 9 operation(s) for disputes.
Silverflow Distributions API
The Distributions API from Silverflow — 2 operation(s) for distributions.
Silverflow Documents API
A Document is a file with associated metadata that can be uploaded and downloaded. Documents have to be attached to a business entity, for example `Dispute Documents`. The Docum...
Silverflow Fees API
The Fees API from Silverflow — 2 operation(s) for fees.
Silverflow File Subscriptions API
Subscribe to raw files from the card networks.
Silverflow Fraud Notifications API
Fraud Notifications are created by the schemes when a fraudulent transaction is reported to them. The Fraud Notification endpoints, allow to obtain more information about a Frau...
Silverflow Fraud Notifications Reports API
The Fraud Notifications Reports API from Silverflow — 1 operation(s) for fraud notifications reports.
Silverflow Network Funds Transfers API
The Network Funds Transfers API from Silverflow — 2 operation(s) for network funds transfers.
Silverflow Network Tokenization API
Network Tokenization
Silverflow POS Charge Actions API
Perform different actions on a previously created charge.
Silverflow Processor Tokenization API
Processor Tokenization
Silverflow Reconciliation Details API
The Reconciliation Details API from Silverflow — 3 operation(s) for reconciliation details.
Silverflow Reconciliation Reports API
The Reconciliation Reports API from Silverflow — 2 operation(s) for reconciliation reports.
Silverflow Report Events API
The Report Events API from Silverflow — 0 operation(s) for report events.
Silverflow Report Scheduling API
The Report Scheduling API from Silverflow — 2 operation(s) for report scheduling.
Silverflow Retrieve Charges API
Retrieve a single or multiple charges.
Silverflow Retrieve POS Charges API
Retrieve charges for given merchant and with additonal filters.
Silverflow Retrieve Reports API
The Retrieve Reports API from Silverflow — 3 operation(s) for retrieve reports.
Silverflow Scheme Fee Reports API
The Scheme Fee Reports API from Silverflow — 1 operation(s) for scheme fee reports.
Silverflow Settlement Reports API
The Settlement Reports API from Silverflow — 1 operation(s) for settlement reports.
Silverflow Transaction Risk Assessment API
Transaction Risk Assessment
Scroll within the panel for all 50 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Silverflow Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Silverflow Events Webhooks
ASYNCAPISecurity 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.
Resources
Every other property we hold for Silverflow — 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 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/silverflow · machine-readable index on apis.io
This is an independent, third-party profile of Silverflow, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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