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APIs · head to head

Hoppscotch vs Solaris

Hoppscotch logo

Hoppscotch

APIs

Open-source API development ecosystem with web-based REST client

From
Free
Rated
-
Full reviewWebsite
Solaris logo

Solaris

APIs

German banking as a service with a full banking licence and a live regulatory problem

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Hoppscotch has a free tier, so it costs nothing to try first.
  • Each has a real cost: Hoppscotch open-source project with no published commercial support plans or pricing; Solaris baFin appointed a special representative in 2022 and extended the mandate in July 2024, so a partner is joining a bank under active supervisory monitoring, with slower approvals and heavier compliance demands as a direct consequence.
  • They diverge on capability: Hoppscotch covers REST Client, Solaris covers German banking licence.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Hoppscotch and Solaris actually diverge.

Attributes where Hoppscotch and Solaris differ
AttributeHoppscotchSolaris
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
PlatformsWeb, Desktop, Self-hostedWeb, API
Founded2019Unknown

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 Hoppscotch

  • REST Client
  • WebSocket
  • gRPC Client
  • GitHub
  • Documentation tools
  • CI/CD
  • Web support
  • Desktop support

Only in Solaris

  • German banking licence
  • IBAN accounts
  • Card issuing
  • Lending as a service
  • Digital assets and custody
  • SEPA payments
  • KYC and onboarding
  • Deposit protection

What people use each for

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

Hoppscotch

  • API Developmentnot Solaris
  • API Gatewaynot Solaris
  • API Testingnot Solaris
  • API Documentationnot Solaris
  • Microservicesnot Solaris

Solaris

  • A retailer or platform launching a German current account or card product without applying for its own licencenot Hoppscotch
  • A fintech that needs deposit taking and lending, which an e-money licence cannot providenot Hoppscotch
  • A European business needing German IBANs because customers reject foreign IBANs for salary and direct debitnot Hoppscotch
  • A company requiring German statutory deposit protection on customer balances as a product claimnot Hoppscotch

Where each one falls short

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

Hoppscotch

  • Open-source project with no published commercial support plans or pricing
  • No official enterprise tier or SLA information disclosed

Solaris

  • BaFin appointed a special representative in 2022 and extended the mandate in July 2024, so a partner is joining a bank under active supervisory monitoring, with slower approvals and heavier compliance demands as a direct consequence.
  • BaFin fined Solaris EUR 6.5 million in March 2024 for systematically late suspicious activity reports and EUR 500,000 for breaching large exposure limits between January 2022 and March 2024, which is a track record a partner inherits reputationally.
  • Solaris has previously needed BaFin approval before onboarding new corporate clients, which can turn a commercial decision to launch into a regulatory timetable outside your control.
  • The 2024 restructuring involved job cuts and the closure of parts of a business unit, so product lines a partner depends on may not have the engineering behind them that the sales process implies.
  • SBI Holdings acquired majority control in 2025, so strategic direction now sits with a Japanese financial group whose priorities for the European business may differ from the roadmap you were sold.

Pricing, plan by plan

Hoppscotch

Free
  • Open SourceFree
    • Full REST client
    • WebSocket support
    • Community
  • Teams$8/monthly
    • Team collaboration
    • Cloud sync
    • Priority support

Solaris

On request
  • Solaris banking as a service$undefined/year
    • Quoted per partner, typically setup fee plus monthly platform fee
    • Per account, per card and per transaction charges on top
    • Interchange sharing arrangements negotiated per programme

Which should you pick?

Choose Hoppscotch if

  • You need rest client.
  • You want to start without paying.
  • You work on Web, Desktop, Self-hosted.
  • You also want websocket.
Hoppscotch review

Choose Solaris if

  • You need german banking licence.
  • You work on Web, API.
  • You also want iban accounts.
Solaris review

Questions people ask

Is Hoppscotch or Solaris better?
Neither clearly leads. Hoppscotch starts at Free and Solaris at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Hoppscotch or Solaris?
Hoppscotch has a free tier; the other does not. Paid plans start at Free for Hoppscotch and On request for Solaris.
Does Hoppscotch or Solaris run on more platforms?
Hoppscotch runs on Web, Desktop, Self-hosted. Solaris runs on Web, API.
Can I use Hoppscotch for free?
Yes. Hoppscotch has a free tier, so you can try it without paying. Solaris starts at On request.
What is Hoppscotch best used for?
Hoppscotch is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Solaris is typically brought in for.
What can Hoppscotch do that Solaris cannot?
Hoppscotch covers REST Client, WebSocket, gRPC Client, GitHub. Solaris covers German banking licence, IBAN accounts, Card issuing, Lending as a service.

Answered from the vendors’ own pages

Hoppscotch: Is Hoppscotch free to use for API development?

Yes, Hoppscotch is a completely free, open-source API development ecosystem. There are no subscription fees, license costs, or registration requirements to access the core platform.

Source
Solaris: Does Solaris have a real banking licence?

Yes. Solaris SE is a German credit institution, which is why it can offer deposits and lending, unlike e-money based competitors.

Hoppscotch: Can I deploy Hoppscotch on my own infrastructure?

As an open-source project, Hoppscotch can be self-hosted and deployed on your own infrastructure. The source code is available for customization and deployment in private environments.

Source
Solaris: Is the BaFin action still live?

The special representative appointed in 2022 had the mandate extended in July 2024, and fines were issued in March 2024. Treat supervisory oversight as an active condition in your diligence.

Solaris: Who owns Solaris now?

SBI Holdings of Japan agreed in December 2024 and January 2025 to take a majority stake of over seventy per cent for around EUR 100 million.

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