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APIs · head to head

Thunder Client vs Volt

Thunder Client logo

Thunder Client

APIs

Lightweight REST API client built as VSCode extension

From
Free
Rated
-
Full reviewWebsite
Volt logo

Volt

APIs

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

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Thunder Client has a free tier, so it costs nothing to try first.
  • Each has a real cost: Thunder Client paid plans are billed annually only: Starter is $3 per user per month and capped at a maximum of 10 seats, Business is $7 per user per month with 500 monthly collection runs per user, and Enterprise is $16 per user per month for unlimited runs; Volt account-to-account payments carry no chargeback mechanism, so consumers lose scheme dispute protection and merchants lose a familiar framework for handling claims.
  • They diverge on capability: Thunder Client covers REST Client, Volt covers Pay by bank.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Thunder Client and Volt actually diverge.

Attributes where Thunder Client and Volt differ
AttributeThunder ClientVolt
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
PlatformsVSCode extension, WebWeb, REST API
Founded2021Unknown

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 Thunder Client

  • REST Client
  • Environment variables
  • Response testing
  • VSCode
  • GitHub
  • Webhook support
  • VSCode extension support
  • Web support

Only in Volt

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

What people use each for

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

Thunder Client

  • API Developmentnot Volt
  • API Gatewaynot Volt
  • API Testingnot Volt
  • API Documentationnot Volt
  • Microservicesnot Volt

Volt

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

Where each one falls short

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

Thunder Client

  • Paid plans are billed annually only: Starter is $3 per user per month and capped at a maximum of 10 seats, Business is $7 per user per month with 500 monthly collection runs per user, and Enterprise is $16 per user per month for unlimited runs

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.

Pricing, plan by plan

Thunder Client

Free
  • FreeFree
    • REST client
    • Collection management
    • Local testing
  • Pro$8/monthly
    • Cloud sync
    • Team collaboration
    • Advanced features

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

Which should you pick?

Choose Thunder Client if

  • You need rest client.
  • You want to start without paying.
  • You work on VSCode extension, Web.
  • You also want environment variables.
Thunder Client review

Choose Volt if

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

Questions people ask

Is Thunder Client or Volt better?
Neither clearly leads. Thunder Client starts at Free and Volt at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Thunder Client or Volt?
Thunder Client has a free tier; the other does not. Paid plans start at Free for Thunder Client and On request for Volt.
Does Thunder Client or Volt run on more platforms?
Thunder Client runs on VSCode extension, Web. Volt runs on Web, REST API.
Can I use Thunder Client for free?
Yes. Thunder Client has a free tier, so you can try it without paying. Volt starts at On request.
What is Thunder Client best used for?
Thunder Client is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Volt is typically brought in for.
What can Thunder Client do that Volt cannot?
Thunder Client covers REST Client, Environment variables, Response testing, VSCode. Volt covers Pay by bank, Circuit Breaker, Virtual IBANs, Payouts and refunds.

Answered from the vendors’ own pages

Thunder Client: How much does Thunder Client cost?

Thunder Client publishes a free plan at no cost, then Starter at $3, Business at $7 and Enterprise at $16, all priced annually.

Source
Volt: Are there chargebacks?

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

Thunder Client: Is Thunder Client free?

Yes, there is a free plan. It is used through the Thunder Client extension for VS Code, available from the marketplace, with limits applied compared with the paid tiers.

Source
Volt: How do refunds work?

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

Volt: Which markets are covered?

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

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