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APIs · head to head

Kong vs Thunder Client

Kong logo

Kong

APIs

Cloud-native API gateway and service connectivity platform

From
Free
Rated
-
Full reviewWebsite
Thunder Client logo

Thunder Client

APIs

Lightweight REST API client built as VSCode extension

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kong the Plus plan includes 1M API requests a month and charges $200 a month for each additional million; Thunder Client paid plans are billed annually only: Starter is $3 per user per month and capped at a maximum of 10 seats, Business is $7 per user per month with 500 monthly collection runs per user, and Enterprise is $16 per user per month for unlimited runs
  • They diverge on capability: Kong covers API Gateway, Thunder Client covers REST Client.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Kong and Thunder Client actually diverge.

Attributes where Kong and Thunder Client differ
AttributeKongThunder Client
Pricing modelsubscriptionfreemium
PlatformsLinux, Docker, KubernetesVSCode extension, Web
Founded20102021

Identical on both: starting price (Free), free tier (Yes), 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 Thunder Client

  • REST Client
  • Environment variables
  • Response testing
  • VSCode
  • GitHub
  • Webhook support
  • VSCode extension support
  • Web support

What people use each for

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

Kong

  • API gateway management and routingnot Thunder Client
  • API development and testingnot Thunder Client
  • Enterprise API security and governancenot Thunder Client

Thunder Client

  • API Developmentnot Kong
  • API Gatewaynot Kong
  • API Testingnot Kong
  • API Documentationnot Kong
  • Microservicesnot 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

Thunder Client

  • Paid plans are billed annually only: Starter is $3 per user per month and capped at a maximum of 10 seats, Business is $7 per user per month with 500 monthly collection runs per user, and Enterprise is $16 per user per month for unlimited runs

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

Thunder Client

Free
  • FreeFree
    • REST client
    • Collection management
    • Local testing
  • Pro$8/monthly
    • Cloud sync
    • Team collaboration
    • Advanced features

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 Thunder Client if

  • You need rest client.
  • You want to start without paying.
  • You work on VSCode extension, Web.
  • You also want environment variables.
Thunder Client review

Questions people ask

Is Kong or Thunder Client better?
Neither clearly leads. Kong starts at Free and Thunder Client at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kong or Thunder Client?
Kong starts at Free and Thunder Client at Free.
Does Kong or Thunder Client run on more platforms?
Kong runs on Linux, Docker, Kubernetes. Thunder Client runs on VSCode extension, Web.
Can I use Kong for free?
Both have a free tier, so you can try either at no cost before committing.
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 Thunder Client is typically brought in for.
What can Kong do that Thunder Client cannot?
Kong covers API Gateway, Authentication & Authorization, Rate Limiting, Kubernetes. Thunder Client covers REST Client, Environment variables, Response testing, VSCode.

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
Thunder Client: How much does Thunder Client cost?

Thunder Client publishes a free plan at no cost, then Starter at $3, Business at $7 and Enterprise at $16, all priced annually.

Source
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
Thunder Client: Is Thunder Client free?

Yes, there is a free plan. It is used through the Thunder Client extension for VS Code, available from the marketplace, with limits applied compared with the paid tiers.

Source
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
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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