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APIs · head to head

Treblle vs Trustly

Treblle logo

Treblle

APIs

API observability, security, and governance platform

From
$233/month
Rated
-
Full reviewWebsite
Trustly logo

Trustly

APIs

Pay-by-bank payments network, majority-owned by private equity firm Nordic Capital

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Treblle no free tier is offered; the entry-level Core plan starts at $233/month billed yearly.; Trustly it is majority-owned by Nordic Capital, a private equity firm, so its long-term roadmap is ultimately oriented toward an eventual sale or IPO rather than indefinite independent operation.
  • They diverge on capability: Treblle covers API discovery, Trustly covers Pay by bank checkout.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Treblle and Trustly actually diverge.

Attributes where Treblle and Trustly differ
AttributeTreblleTrustly
Starting price$233/monthOn request
Pricing modelsubscriptionquote

Identical on both: free tier (No), platforms (web, api), 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 Treblle

  • API discovery
  • Runtime security
  • API governance
  • Compliance monitoring
  • API documentation and analytics
  • Agentic AI support

Only in Trustly

  • Pay by bank checkout
  • Instant refunds
  • Verified payouts
  • Multi-market bank connectivity
  • Merchant dashboard and reconciliation
  • Fraud and risk tooling

What people use each for

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

Treblle

  • Gaining full visibility into API traffic across multi-cloud environmentsnot Trustly
  • Detecting shadow APIs and runtime security risksnot Trustly
  • Meeting compliance audit requirements such as HIPAA or GDPRnot Trustly
  • Governing API design standards through CI/CDnot Trustly

Trustly

  • An e-commerce merchant wanting a lower-cost alternative or complement to card payment acceptancenot Treblle
  • A gaming or gambling operator needing verified, instant payouts to players' bank accountsnot Treblle
  • A merchant wanting instant refunds processed directly to a customer's bank account rather than card reversal delaysnot Treblle
  • A business in a market with strong open banking adoption wanting pay-by-bank as a checkout optionnot Treblle

Where each one falls short

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

Treblle

  • No free tier is offered; the entry-level Core plan starts at $233/month billed yearly.
  • Growth and Enterprise pricing is custom and not published, requiring a sales conversation to budget.
  • Core plan is limited to 1 workspace and only 30 days of data retention.
  • SSO and on-prem/BYO cloud deployment are reserved for the top Enterprise tier.

Trustly

  • It is majority-owned by Nordic Capital, a private equity firm, so its long-term roadmap is ultimately oriented toward an eventual sale or IPO rather than indefinite independent operation.
  • Consumer familiarity with paying by bank transfer still lags card payments in most markets, so merchants typically see it used as a secondary option rather than a full card replacement.
  • The 1.15 to 3.15% merchant fee range is not a single published rate, so a merchant cannot know its actual cost without a sales negotiation.
  • As with all open banking-dependent payment methods, reliability depends on the consistency of the underlying banks' own APIs, which Trustly does not control.
  • Its verified payout functionality is heavily used in gaming and gambling, a sector with additional regulatory scrutiny, which is worth factoring in when evaluating vendor risk exposure by association.

Pricing, plan by plan

Treblle

$233/month
  • Core$233/month
    • Billed yearly
    • 5 APIs
    • 500 requests/min
  • Growth$undefined/month
    • Custom APIs and request limits
    • 50M requests/month baseline
    • API security
  • Enterprise$undefined/month
    • Unlimited workspaces, APIs, and requests/min
    • API governance and compliance
    • SSO

Trustly

On request
  • Trustly$undefined/month
    • Typical merchant cost of 1.15% to 3.15% depending on volume and market
    • Exact rate negotiated per merchant, not published as a flat card

Which should you pick?

Choose Treblle if

  • You need api discovery.
  • You work on web, api.
  • You also want runtime security.
Treblle review

Choose Trustly if

  • You need pay by bank checkout.
  • You work on Web, API.
  • You also want instant refunds.
Trustly review

Questions people ask

Is Treblle or Trustly better?
Neither clearly leads. Treblle starts at $233/month and Trustly at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Treblle or Trustly?
Treblle starts at $233/month and Trustly at On request.
Does Treblle or Trustly run on more platforms?
Treblle runs on web, api. Trustly runs on Web, API.
What is Treblle best used for?
Treblle is most often used for gaining full visibility into api traffic across multi-cloud environments, detecting shadow apis and runtime security risks, meeting compliance audit requirements such as hipaa or gdpr, governing api design standards through ci/cd. Of those, gaining full visibility into api traffic across multi-cloud environments and detecting shadow apis and runtime security risks are not what Trustly is typically brought in for.
What can Treblle do that Trustly cannot?
Treblle covers API discovery, Runtime security, API governance, Compliance monitoring. Trustly covers Pay by bank checkout, Instant refunds, Verified payouts, Multi-market bank connectivity.

Answered from the vendors’ own pages

Treblle: What does Treblle cost?

Treblle's Core plan costs $233/month billed yearly and covers 5 APIs and 5M requests/month; Growth and Enterprise plans use custom pricing for larger request volumes and advanced features.

Source
Trustly: Who owns Trustly?

Nordic Capital, a private equity firm, holds a 51.1% majority stake; Alfven & Didrikson and BlackRock hold smaller stakes.

Treblle: Is there a free plan?

Treblle does not offer a free tier; it instead offers a no-credit-card demo rather than free ongoing access.

Source
Trustly: Is Trustly going public?

It has discussed an IPO but as of its most recent comments said one remained at least a year away.

Treblle: How is usage metered?

Plans are metered by number of APIs monitored and requests per minute/month, with the Core plan capped at 500 requests/min and 5M requests/month.

Source
Trustly: What does it typically cost a merchant?

Roughly 1.15% to 3.15% of transaction value depending on volume and market, negotiated per merchant.

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