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APIs · head to head

Kong vs Mambu

Kong logo

Kong

APIs

Cloud-native API gateway and service connectivity platform

From
Free
Rated
-
Full reviewWebsite
Mambu logo

Mambu

APIs

Composable cloud core banking platform used by banks, lenders and fintechs in 65-plus countries

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Kong has a free tier, so it costs nothing to try first.
  • Each has a real cost: Kong the Plus plan includes 1M API requests a month and charges $200 a month for each additional million; Mambu pricing is entirely unpublished, and as subscription and usage-based fees scale with a bank's book of business, total cost at scale is hard to forecast before a detailed vendor conversation.
  • They diverge on capability: Kong covers API Gateway, Mambu covers Composable engine architecture.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Kong and Mambu actually diverge.

Attributes where Kong and Mambu differ
AttributeKongMambu
Starting priceFreeOn request
Pricing modelsubscriptionquote
Free tierYesNo
PlatformsLinux, Docker, KubernetesWeb, API
Founded2010Unknown

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 Kong

  • API Gateway
  • Authentication & Authorization
  • Rate Limiting
  • Kubernetes
  • Consul
  • Eureka
  • PostgreSQL
  • Linux support

Only in Mambu

  • Composable engine architecture
  • Deposits and lending core
  • Cloud-native SaaS delivery
  • Marketplace of connectors
  • Multi-country regulatory support
  • API-first orchestration

What people use each for

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

Kong

  • API gateway management and routingnot Mambu
  • API development and testingnot Mambu
  • Enterprise API security and governancenot Mambu

Mambu

  • A digital-first challenger bank wanting a cloud-native core without building banking infrastructure from scratchnot Kong
  • A lender needing configurable loan product engines to launch new credit products fasternot Kong
  • An established bank doing incremental core modernisation rather than a full monolithic core replacementnot Kong
  • A fintech in an emerging or regulated market needing pre-built compliance configuration across many jurisdictionsnot Kong

Where each one falls short

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

Kong

  • The Plus plan includes 1M API requests a month and charges $200 a month for each additional million
  • Plus is capped at 10M requests a month, so growth past that forces an Enterprise contract
  • Plus limits published APIs to 20 and includes one Developer Portal, with a second at $200 a month
  • SSO and audit logging are Enterprise only
  • Enterprise pricing is custom and billed annually

Mambu

  • Pricing is entirely unpublished, and as subscription and usage-based fees scale with a bank's book of business, total cost at scale is hard to forecast before a detailed vendor conversation.
  • A core banking implementation is a multi-year, high-switching-cost commitment regardless of vendor, and Mambu is no exception; a wrong initial configuration choice is expensive to unwind.
  • Composability is a genuine strength but also means more integration and configuration decisions fall to the bank's own team or system integrator, versus a more opinionated, less flexible fixed-core alternative.
  • As cloud-hosted core banking infrastructure, a bank is trusting Mambu's own uptime and security posture for its most business-critical system, concentrating operational risk in one vendor relationship.
  • Newer entrants such as Thought Machine and 10x Banking compete directly on similar composable positioning, so Mambu's tenure advantage is real but narrowing as competitors mature.

Pricing, plan by plan

Kong

Free
  • Kong Konnect Free TrialFree
    • 30-day free trial
    • Full enterprise functionality
    • Unlimited gateways
  • Kong Konnect Plus$null/month
    • Per gateway pricing billed monthly
    • Up to 5 Serverless Gateways, 2 Hybrid, 2 Dedicated Cloud Gateways
    • 1M API requests included per month
  • Kong Insomnia EssentialsFree
    • Unlimited projects and CLI access
    • Up to 3 Git Sync users
    • 1,000 mock server requests per month
  • Kong Insomnia Pro$12/month
    • Unlimited users with Git Sync access
    • Unlimited organizations
    • RBAC

Mambu

On request
  • Mambu$undefined/year
    • Subscription pricing, structured by modules and usage
    • Exact rates not published, custom quote required

Which should you pick?

Choose Kong if

  • You need api gateway.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes.
  • You also want authentication & authorization.
Kong review

Choose Mambu if

  • You need composable engine architecture.
  • You work on Web, API.
  • You also want deposits and lending core.
Mambu review

Questions people ask

Is Kong or Mambu better?
Neither clearly leads. Kong starts at Free and Mambu at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kong or Mambu?
Kong has a free tier; the other does not. Paid plans start at Free for Kong and On request for Mambu.
Does Kong or Mambu run on more platforms?
Kong runs on Linux, Docker, Kubernetes. Mambu runs on Web, API.
Can I use Kong for free?
Yes. Kong has a free tier, so you can try it without paying. Mambu starts at On request.
What is Kong best used for?
Kong is most often used for api gateway management and routing, api development and testing, enterprise api security and governance. Of those, api gateway management and routing and api development and testing are not what Mambu is typically brought in for.
What can Kong do that Mambu cannot?
Kong covers API Gateway, Authentication & Authorization, Rate Limiting, Kubernetes. Mambu covers Composable engine architecture, Deposits and lending core, Cloud-native SaaS delivery, Marketplace of connectors.

Answered from the vendors’ own pages

Kong: Does Kong offer a free trial?

Yes, Kong Konnect offers a 30-day free trial with full enterprise functionality, unlimited gateways, and no credit card required.

Source
Mambu: Is Mambu on-premise or cloud?

Cloud-native SaaS delivery, not an on-premise installation.

Kong: How much does Kong Insomnia Pro cost?

Kong Insomnia Pro is $12 per user per month with 15% savings available for annual billing.

Source
Mambu: Does it publish pricing?

No, pricing is subscription-based, structured by modules and usage, but not published publicly.

Kong: What are Kong Konnect Plus API request limits?

Kong Konnect Plus includes 1M API requests per month; additional requests cost $200 per 1M (maximum 10M per month).

Source
Mambu: How many countries does it operate in?

It is used by banks, lenders and fintechs across more than 65 countries.

Kong: What is included in Kong Insomnia Enterprise?

Kong Insomnia Enterprise is $45 per user per month with SSO, SCIM, vault integrations, unlimited mock server requests, and Konnect integration.

Source
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