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APIs · head to head

Gravitee vs Temenos Transact

Gravitee logo

Gravitee

APIs

Open source API management platform for event-native APIs

From
Free
Rated
-
Full reviewWebsite
Temenos Transact logo

Temenos Transact

APIs

Established core banking system used by banks in over a hundred countries

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Gravitee has a free tier, so it costs nothing to try first.
  • Each has a real cost: Gravitee the entry paid API management tier is $2,500 a month and includes a single production gateway; Temenos Transact the codebase originates in the 1990s, so banks on older releases face major upgrade programmes to reach current versions, and many defer them for years.
  • They diverge on capability: Gravitee covers API Gateway, Temenos Transact covers Country model banks.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Gravitee and Temenos Transact actually diverge.

Attributes where Gravitee and Temenos Transact differ
AttributeGraviteeTemenos Transact
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
PlatformsCloud, On-premise, KubernetesWeb, Linux, Windows, REST API
Founded2015Unknown

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 Gravitee

  • API Gateway
  • Developer Portal
  • Analytics Dashboard
  • Kubernetes
  • Docker
  • Kafka
  • LDAP
  • Cloud support

Only in Temenos Transact

  • Country model banks
  • Multi-product core
  • Payments processing
  • API layer
  • Cloud deployment
  • Accounting engine

What people use each for

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

Gravitee

  • API gateway and lifecycle managementnot Temenos Transact
  • Exposing Kafka event streams as managed APIsnot Temenos Transact
  • Protocol mediation between event brokers and clientsnot Temenos Transact
  • Self-hosting an open source API gatewaynot Temenos Transact
  • Access control and authentication in front of internal APIsnot Temenos Transact

Temenos Transact

  • A bank in an emerging market needing local regulatory compliance without building it from scratchnot Gravitee
  • An institution running Islamic banking products alongside conventional ones on one corenot Gravitee
  • A bank that needs a large pool of experienced implementation consultants to de-risk a migrationnot Gravitee
  • A group standardising subsidiaries in several countries onto one core banking systemnot Gravitee

Where each one falls short

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

Gravitee

  • The entry paid API management tier is $2,500 a month and includes a single production gateway
  • Event management is priced separately, starting at $1,250 a month for the Comet tier
  • Tiers are gated on gateway and broker counts, so scaling horizontally means moving tier rather than paying incrementally
  • Data logging masking and other enterprise features are withheld from the lowest paid tier
  • 24/7 support requires the top Universe tier

Temenos Transact

  • The codebase originates in the 1990s, so banks on older releases face major upgrade programmes to reach current versions, and many defer them for years.
  • Total cost is dominated by implementation partner fees rather than licence, and those programmes routinely overrun their original estimates.
  • Product changes that cloud-native cores treat as configuration can require development work and a release cycle, which slows time to market for new products.
  • Heavy customisation is common and it makes every subsequent upgrade harder, creating a compounding cost that banks feel a decade after go-live.
  • Temenos has repeatedly restructured its product line and naming, so buyers must check carefully which components a proposal actually includes and which are separately licensed.

Pricing, plan by plan

Gravitee

Free
  • CommunityFree
    • API Gateway
    • Basic analytics
    • Community support
  • Enterprise$1500/monthly
    • Advanced features
    • SLA support
    • SSO integration
  • Custom$undefined/monthly
    • Custom deployment
    • Dedicated support
    • Premium SLA

Temenos Transact

On request
  • Temenos Transact$undefined/year
    • Perpetual or subscription licence scaled by assets, accounts or users
    • Annual maintenance typically a percentage of licence value
    • Implementation delivered by partners and charged separately

Which should you pick?

Choose Gravitee if

  • You need api gateway.
  • You want to start without paying.
  • You work on Cloud, On-premise, Kubernetes.
  • You also want developer portal.
Gravitee review

Choose Temenos Transact if

  • You need country model banks.
  • You work on Web, Linux, Windows, REST API.
  • You also want multi-product core.
Temenos Transact review

Questions people ask

Is Gravitee or Temenos Transact better?
Neither clearly leads. Gravitee starts at Free and Temenos Transact at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Gravitee or Temenos Transact?
Gravitee has a free tier; the other does not. Paid plans start at Free for Gravitee and On request for Temenos Transact.
Does Gravitee or Temenos Transact run on more platforms?
Gravitee runs on Cloud, On-premise, Kubernetes. Temenos Transact runs on Web, Linux, Windows, REST API.
Can I use Gravitee for free?
Yes. Gravitee has a free tier, so you can try it without paying. Temenos Transact starts at On request.
What is Gravitee best used for?
Gravitee is most often used for api gateway and lifecycle management, exposing kafka event streams as managed apis, protocol mediation between event brokers and clients, self-hosting an open source api gateway. Of those, api gateway and lifecycle management and exposing kafka event streams as managed apis are not what Temenos Transact is typically brought in for.
What can Gravitee do that Temenos Transact cannot?
Gravitee covers API Gateway, Developer Portal, Analytics Dashboard, Kubernetes. Temenos Transact covers Country model banks, Multi-product core, Payments processing, API layer.

Answered from the vendors’ own pages

Gravitee: What is Gravitee's pricing model?

Gravitee uses a tiered subscription model with monthly flat pricing. The Planet tier for API Management starts at $2,500/month with one production gateway, while the Comet tier for Event Management starts at $1,250/month.

Source
Temenos Transact: Is Transact the same as T24?

Yes. T24 was renamed Temenos Transact; older installations and much of the consultant population still use the T24 name.

Gravitee: Are there hidden fees with Gravitee?

No. Gravitee explicitly states there are no hidden fees, and all tiers include unlimited users and unlimited APIs under management.

Source
Temenos Transact: Can it run in the cloud?

Yes, it is offered on public cloud, though many existing installations remain on-premises and moving them is a project.

Gravitee: What does higher tier pricing include in Gravitee?

Higher tiers add more production gateways, enterprise plugins, and enhanced support levels ranging from Gold to Platinum/Diamond support.

Source
Temenos Transact: What drives the cost?

Licence scaled by size, annual maintenance as a percentage of licence, and implementation partner fees that usually exceed the software cost.

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