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APIs · head to head

Volt vs WSO2 API Manager

Volt logo

Volt

APIs

Account-to-account pay by bank across Europe, the UK, Brazil and Australia

From
On request
Rated
-
Full reviewWebsite
WSO2 API Manager logo

WSO2 API Manager

APIs

Complete API management platform for designing and managing APIs

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only WSO2 API Manager has a free tier, so it costs nothing to try first.
  • Each has a real cost: Volt account-to-account payments carry no chargeback mechanism, so consumers lose scheme dispute protection and merchants lose a familiar framework for handling claims.; WSO2 API Manager the free open source distribution does not include a subscription to the WSO2 Update service, so continuous improvements and security patches require a paid subscription
  • They diverge on capability: Volt covers Pay by bank, WSO2 API Manager covers API Gateway.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Volt and WSO2 API Manager actually diverge.

Attributes where Volt and WSO2 API Manager differ
AttributeVoltWSO2 API Manager
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWeb, REST APIJava, Linux, Docker, Kubernetes
FoundedUnknown2005

Identical on both: user rating (Not yet rated), category (APIs).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Volt

  • Pay by bank
  • Circuit Breaker
  • Virtual IBANs
  • Payouts and refunds
  • Verify
  • Stablecoin checkout

Only in WSO2 API Manager

  • API Gateway
  • API Designer
  • Developer Portal
  • LDAP
  • Okta
  • Keycloak
  • Microservices
  • Java support

What people use each for

The jobs each tool is most often brought in to do.

Volt

  • A travel seller with high average order values paying percentage card fees it wants to replace with flat transfer feesnot WSO2 API Manager
  • An iGaming operator needing fast deposits and payouts where card acceptance is restrictednot WSO2 API Manager
  • A merchant with heavy card fraud that wants strongly authenticated irreversible paymentsnot WSO2 API Manager
  • A marketplace verifying seller bank accounts before paying outnot WSO2 API Manager

WSO2 API Manager

  • Publishing, securing and rate limiting APIs behind a gatewaynot Volt
  • Running an API developer portal with subscription key managementnot Volt
  • Self hosting an open source API management layer on premisesnot Volt

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Volt

  • Account-to-account payments carry no chargeback mechanism, so consumers lose scheme dispute protection and merchants lose a familiar framework for handling claims.
  • Refunds are outbound payments rather than reversals, which changes treasury handling and means a refund can fail for reasons a card refund never would.
  • Conversion is lower than a stored card because the shopper must complete a bank authentication journey, and drop-off varies significantly by bank.
  • Core pay by bank pricing is per transaction but refunds, payouts, virtual IBANs, Verify and fraud tooling are billed separately, so the real cost is a stack of line items.
  • Bank API availability and quality vary across markets, and an outage at a major bank removes a slice of your checkout with no fallback unless you keep cards live.

WSO2 API Manager

  • The free open source distribution does not include a subscription to the WSO2 Update service, so continuous improvements and security patches require a paid subscription
  • A commercial production licence is not part of the free download and comes only with a subscription
  • No subscription price is published; Basic Support and Enterprise Support both require contacting sales for a quote
  • 24x7x365 coverage requires Enterprise Support; the general query SLA is one business day
  • A Customer Success Manager is a paid optional add on covering business hours only
  • Consulting services and WSO2 Private Cloud hosting are quoted separately

Pricing, plan by plan

Volt

On request
  • Volt pay by bank$undefined/year
    • Per successful transaction fee, quoted by volume and market
    • Separate charges for refunds, payouts, virtual IBANs and Verify
    • Circuit Breaker fraud tooling priced as an add-on

WSO2 API Manager

Free
  • CommunityFree
    • Core API management
    • Community support
  • Commercial$undefined/monthly
    • Enterprise features
    • Technical support
    • SLA

Which should you pick?

Choose Volt if

  • You need pay by bank.
  • You work on Web, REST API.
  • You also want circuit breaker.
Volt review

Choose WSO2 API Manager if

  • You need api gateway.
  • You want to start without paying.
  • You work on Java, Linux, Docker, Kubernetes.
  • You also want api designer.
WSO2 API Manager review

Questions people ask

Is Volt or WSO2 API Manager better?
Neither clearly leads. Volt starts at On request and WSO2 API Manager at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Volt or WSO2 API Manager?
WSO2 API Manager has a free tier; the other does not. Paid plans start at On request for Volt and Free for WSO2 API Manager.
Does Volt or WSO2 API Manager run on more platforms?
Volt runs on Web, REST API. WSO2 API Manager runs on Java, Linux, Docker, Kubernetes.
Can I use WSO2 API Manager for free?
Yes. WSO2 API Manager has a free tier, so you can try it without paying. Volt starts at On request.
What is Volt best used for?
Volt is most often used for a travel seller with high average order values paying percentage card fees it wants to replace with flat transfer fees, an igaming operator needing fast deposits and payouts where card acceptance is restricted, a merchant with heavy card fraud that wants strongly authenticated irreversible payments, a marketplace verifying seller bank accounts before paying out. Of those, a travel seller with high average order values paying percentage card fees it wants to replace with flat transfer fees and an igaming operator needing fast deposits and payouts where card acceptance is restricted are not what WSO2 API Manager is typically brought in for.
What can Volt do that WSO2 API Manager cannot?
Volt covers Pay by bank, Circuit Breaker, Virtual IBANs, Payouts and refunds. WSO2 API Manager covers API Gateway, API Designer, Developer Portal, LDAP.

Answered from the vendors’ own pages

Volt: Are there chargebacks?

No. Bank transfers are irrevocable, so disputes are handled commercially between merchant and customer, not through a card scheme.

WSO2 API Manager: How is WSO2 API Manager priced?

WSO2 API Manager pricing is not published on their website. As an enterprise API management platform, pricing is custom-quoted based on deployment model and organizational requirements.

Source
Volt: How do refunds work?

As a separate outbound payment initiated by the merchant, which Volt charges for separately from the inbound transaction.

WSO2 API Manager: Does WSO2 API Manager offer different pricing for on-premises versus cloud deployments?

WSO2 API Manager supports multiple deployment options including on-premises and cloud, but pricing structures for different deployment models are not publicly disclosed.

Source
Volt: Which markets are covered?

Europe and the UK, plus Brazil and Australia, on a single API integration.

WSO2 API Manager: What deployment flexibility does WSO2 API Manager provide?

WSO2 API Manager enables flexible deployment on-premises or in cloud environments, but specific pricing tiers for each deployment model require contacting WSO2 sales.

Source
WSO2 API Manager: How would I request a WSO2 API Manager pricing quote?

Organizations can request pricing quotes by contacting WSO2 sales through their website. Custom quotes depend on API volume, deployment model, and feature requirements.

Source
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