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APIs · head to head

Ozone API vs Weavr

Ozone API logo

Ozone API

APIs

Standards-compliant open banking API layer for banks and regulators

From
On request
Rated
-
Full reviewWebsite
Weavr logo

Weavr

APIs

Packaged embedded finance for B2B SaaS, with an in-house EU e-money licence

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Ozone API it provides the API layer, not the core connectivity, so the bulk of the project is still integrating your own core banking systems and that cost is not in the licence.; Weavr products are packaged rather than open, so a flow Weavr does not support is not something you can build around, and you discover the limits after integrating.
  • They diverge on capability: Ozone API covers Multi-standard support, Weavr covers Plug-and-play products.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Ozone API and Weavr actually diverge.

Attributes where Ozone API and Weavr differ
AttributeOzone APIWeavr
PlatformsWeb, REST API, LinuxWeb, REST API

Identical on both: starting price (On request), pricing model (quote), free tier (No), 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 Ozone API

  • Multi-standard support
  • Consent management
  • Developer portal
  • Regulatory reporting
  • Premium API monetisation
  • Deployment flexibility

Only in Weavr

  • Plug-and-play products
  • Regulated cover
  • Card issuing
  • Multi-currency accounts
  • Identity and onboarding
  • Data insights

What people use each for

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

Ozone API

  • A building society facing an open banking compliance deadline with no API team of its ownnot Weavr
  • A bank operating in several jurisdictions that must satisfy different open banking standards at oncenot Weavr
  • A regulator or standards body building national open finance infrastructurenot Weavr
  • A bank wanting to sell premium APIs beyond the regulatory minimum without building entitlement plumbingnot Weavr

Weavr

  • A project management SaaS adding expense cards without hiring a compliance officernot Ozone API
  • A marketplace paying out sellers from accounts held inside its own productnot Ozone API
  • A procurement platform issuing virtual cards against approved purchase ordersnot Ozone API
  • A European SaaS vendor wanting a regulated entity to sit behind its financial featuresnot Ozone API

Where each one falls short

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

Ozone API

  • It provides the API layer, not the core connectivity, so the bulk of the project is still integrating your own core banking systems and that cost is not in the licence.
  • Value is driven by regulatory obligation, so an institution not under a mandate struggles to build a business case for the spend.
  • It is a small UK vendor selling to large regulated institutions, which raises procurement and vendor viability questions during bank due diligence.
  • Premium API monetisation is a genuine capability but few banks have found real demand, so revenue projections used to justify the purchase often do not materialise.
  • Standards evolve continuously and each revision means a change programme in your own systems, even where Ozone absorbs the specification work at the API edge.

Weavr

  • Products are packaged rather than open, so a flow Weavr does not support is not something you can build around, and you discover the limits after integrating.
  • Programme economics depend on interchange, and SaaS vendors routinely overestimate how much card volume their customers will actually route through the embedded product.
  • It is a small company with limited headcount supporting a regulated dependency, which is a real concentration risk for a feature your customers rely on.
  • Monthly minimums on card programmes mean a slow-adopting customer base leaves you paying for volume you never reach.
  • European interchange caps hold programme revenue well below what US embedded finance case studies suggest, so imported business cases do not transfer.

Pricing, plan by plan

Ozone API

On request
  • Ozone API$undefined/year
    • Annual licence or managed service subscription, quoted
    • Scaling by institution size, standards in scope and API call volume
    • Implementation and core integration charged separately

Weavr

On request
  • Weavr embedded finance$undefined/year
    • Platform subscription plus per-account and per-card fees
    • Interchange share negotiated as part of the commercial terms
    • Monthly minimums apply to card programmes

Which should you pick?

Choose Ozone API if

  • You need multi-standard support.
  • You work on Web, REST API, Linux.
  • You also want consent management.
Ozone API review

Choose Weavr if

  • You need plug-and-play products.
  • You work on Web, REST API.
  • You also want regulated cover.
Weavr review

Questions people ask

Is Ozone API or Weavr better?
Neither clearly leads. Ozone API starts at On request and Weavr at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ozone API or Weavr?
Ozone API starts at On request and Weavr at On request.
Does Ozone API or Weavr run on more platforms?
Ozone API runs on Web, REST API, Linux. Weavr runs on Web, REST API.
What is Ozone API best used for?
Ozone API is most often used for a building society facing an open banking compliance deadline with no api team of its own, a bank operating in several jurisdictions that must satisfy different open banking standards at once, a regulator or standards body building national open finance infrastructure, a bank wanting to sell premium apis beyond the regulatory minimum without building entitlement plumbing. Of those, a building society facing an open banking compliance deadline with no api team of its own and a bank operating in several jurisdictions that must satisfy different open banking standards at once are not what Weavr is typically brought in for.
What can Ozone API do that Weavr cannot?
Ozone API covers Multi-standard support, Consent management, Developer portal, Regulatory reporting. Weavr covers Plug-and-play products, Regulated cover, Card issuing, Multi-currency accounts.

Answered from the vendors’ own pages

Ozone API: Is this a competitor to Plaid or TrueLayer?

No, the opposite side. Ozone is bought by the bank exposing data; Plaid and TrueLayer consume it on behalf of third parties.

Weavr: Do I need my own financial licence?

No. Weavr holds an e-money licence, including a Maltese authorisation for the EU, and acts as the regulated entity for the embedded product.

Ozone API: Does it connect to my core banking system?

It provides the standards-compliant API surface and adapters, but connecting your core is an integration project you scope separately.

Weavr: How is it different from a banking-as-a-service API?

It sells finished product shapes with compliance built in rather than raw banking primitives, which trades flexibility for a much shorter route to launch.

Ozone API: Which standards does it support?

UK Open Banking, Berlin Group, FDX, Consumer Data Right and Gulf regional standards, among others, from one platform.

Weavr: How does Weavr make money?

Platform fees plus per-account and per-card charges, with a negotiated share of card interchange.

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