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Testing · head to head

Cucumber vs Kong Gateway

Cucumber logo

Cucumber

Testing

Behaviour-driven development testing framework that returned to community ownership after nine years under SmartBear

From
Free
Rated
-
Full reviewWebsite
Kong Gateway logo

Kong Gateway

APIs

Open-source and cloud API gateway for managing microservices traffic

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cucumber gherkin's plain-language layer adds a real maintenance burden, keeping feature files, step definitions and implementation code synchronised across a large suite is a known source of drift and duplicated effort.; Kong Gateway the free open-source gateway lacks the analytics, portals, and support of the paid Konnect tiers.
  • They diverge on capability: Cucumber covers Gherkin syntax, Kong Gateway covers API request routing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Cucumber and Kong Gateway actually diverge.

Attributes where Cucumber and Kong Gateway differ
AttributeCucumberKong Gateway
Pricing modelOpen source, no licence feefreemium
PlatformsLinux, macOS, Windowsweb, linux, api
CategoryTestingAPIs
FoundedUnknown2017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Cucumber

  • Gherkin syntax
  • Step definition binding
  • Multi-language support
  • Living documentation
  • Tagging and scenario outlines
  • Reporting plugins

Only in Kong Gateway

  • API request routing
  • Plugin ecosystem
  • Developer portals
  • AI Gateway
  • Analytics and observability
  • SSO and audit logs

What people use each for

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

Cucumber

  • A team practising behaviour-driven development that wants shared, readable specifications between product owners and engineersnot Kong Gateway
  • An organisation wanting living documentation that stays synchronised with actual test coverage rather than a separate specification documentnot Kong Gateway
  • A QA team migrating acceptance tests from a proprietary BDD tool to an open source, community-governed alternativenot Kong Gateway
  • A Java, JavaScript or Ruby project needing a mature BDD framework rather than building Gherkin-style parsing from scratchnot Kong Gateway

Kong Gateway

  • Routing and securing traffic across microservicesnot Cucumber
  • Publishing internal or external developer portalsnot Cucumber
  • Managing rate limits and authentication at the API edgenot Cucumber
  • Gateway-level routing to multiple LLM providersnot Cucumber

Where each one falls short

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

Cucumber

  • Gherkin's plain-language layer adds a real maintenance burden, keeping feature files, step definitions and implementation code synchronised across a large suite is a known source of drift and duplicated effort.
  • Ownership has moved twice in under a decade, from independent to SmartBear-owned to independent community ownership again, which should temper confidence in any specific long-range roadmap claim.
  • Non-technical stakeholders who are meant to read and write Gherkin scenarios often do not engage with them in practice, leaving the readability benefit unrealised while the maintenance cost remains.
  • Step definition reuse across a large feature file set can become tangled, with ambiguous step matching causing hard-to-debug failures as a suite grows.
  • As a community-owned project without a corporate backer's support infrastructure, enterprise buyers wanting a formal support contract have no vendor to buy one from, unlike some competing BDD tools still sold commercially.

Kong Gateway

  • The free open-source gateway lacks the analytics, portals, and support of the paid Konnect tiers.
  • Plus tier caps API requests at 1M/month before incurring per-million overage charges.
  • Enterprise pricing is custom and not published, making budgeting harder without sales contact.
  • Configuration and plugin management can require significant operational expertise to run at scale.

Pricing, plan by plan

Cucumber

Free
  • CucumberFree
    • Full functionality across Cucumber-JVM, Cucumber-JS, Cucumber-Ruby and other implementations
    • Community support via GitHub
    • Returned to independent community ownership in December 2024 after nine years connected to SmartBear

Kong Gateway

Free
  • Free TrialFree
    • 30-day enterprise functionality trial
    • Unlimited gateways
    • 30-day analytics retention
  • Plus$undefined/month
    • Up to 5 serverless, 2 hybrid, 2 dedicated cloud gateways
    • 1M API requests/month included
    • Up to 2 developer portals
  • Enterprise$undefined/month
    • Unlimited hybrid and dedicated cloud gateways
    • Unlimited developer portals
    • SSO and audit logs

Which should you pick?

Choose Cucumber if

  • You need gherkin syntax.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want step definition binding.
Cucumber review

Choose Kong Gateway if

  • You need api request routing.
  • You want to start without paying.
  • You work on web, linux, api.
  • You also want plugin ecosystem.
Kong Gateway review

Questions people ask

Is Cucumber or Kong Gateway better?
Neither clearly leads. Cucumber starts at Free and Kong Gateway at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cucumber or Kong Gateway?
Cucumber starts at Free and Kong Gateway at Free.
Does Cucumber or Kong Gateway run on more platforms?
Cucumber runs on Linux, macOS, Windows. Kong Gateway runs on web, linux, api.
Can I use Cucumber for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cucumber best used for?
Cucumber is most often used for a team practising behaviour-driven development that wants shared, readable specifications between product owners and engineers, an organisation wanting living documentation that stays synchronised with actual test coverage rather than a separate specification document, a qa team migrating acceptance tests from a proprietary bdd tool to an open source, community-governed alternative, a java, javascript or ruby project needing a mature bdd framework rather than building gherkin-style parsing from scratch. Of those, a team practising behaviour-driven development that wants shared, readable specifications between product owners and engineers and an organisation wanting living documentation that stays synchronised with actual test coverage rather than a separate specification document are not what Kong Gateway is typically brought in for.
What can Cucumber do that Kong Gateway cannot?
Cucumber covers Gherkin syntax, Step definition binding, Multi-language support, Living documentation. Kong Gateway covers API request routing, Plugin ecosystem, Developer portals, AI Gateway.

Answered from the vendors’ own pages

Cucumber: Is Cucumber owned by SmartBear?

No, not currently. SmartBear acquired Cucumber Ltd in 2019 but the open source project returned to independent community ownership in December 2024.

Kong Gateway: Is Kong Gateway free?

Kong's core gateway is open source and free to self-host. Kong Konnect, the managed cloud platform, offers a 30-day free trial before moving to paid Plus or custom Enterprise pricing.

Source
Cucumber: Is Cucumber free?

Yes, entirely open source with no licence fee across all its language implementations.

Kong Gateway: How is usage metered on the Plus plan?

The Plus plan includes 1M API requests per month, with additional usage billed at $200 per extra 1 million requests up to a 10M/month cap, plus per-gateway and per-LLM-model charges.

Source
Cucumber: Does Cucumber replace Selenium or Appium?

No, Cucumber provides the Gherkin specification layer and step definition binding; the actual browser or mobile automation still needs a driver such as Selenium or Appium underneath.

Kong Gateway: What support is included?

Plus includes email support with a 2-business-day SLA, while Enterprise adds dedicated success managers and professional services.

Source
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