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APIs · head to head

Kong vs Unit

Kong logo

Kong

APIs

Cloud-native API gateway and service connectivity platform

From
Free
Rated
-
Full reviewWebsite
Unit logo

Unit

APIs

Banking as a service platform for embedding deposit accounts, cards and payments, with a sponsor bank behind it

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; Unit your product depends on a sponsor bank you do not contract with directly, and 2024 showed what that means: Thread Bank received an FDIC enforcement action naming its banking as a service programmes and Blue Ridge Bank went under an OCC consent order and offboarded fintech partners.
  • They diverge on capability: Kong covers API Gateway, Unit covers Deposit accounts.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Kong and Unit actually diverge.

Attributes where Kong and Unit differ
AttributeKongUnit
Starting priceFreeOn request
Pricing modelsubscriptionquote
Free tierYesNo
PlatformsLinux, Docker, KubernetesWeb, iOS, Android
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 Unit

  • Deposit accounts
  • Card issuing
  • Payments
  • White label components
  • Compliance operations
  • Lending
  • Programme reporting
  • Sandbox

What people use each for

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

Kong

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

Unit

  • A vertical SaaS platform for contractors that wants to hold customer funds and issue expense cards without pursuing a charternot Kong
  • A payroll or benefits platform embedding accounts so employees can be paid ahead of schedulenot Kong
  • A marketplace that wants seller balances to sit in real accounts under its own brand rather than as ledger entries at a processornot Kong
  • A company that needs interchange revenue from a card programme to make the unit economics of its core product worknot 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

Unit

  • Your product depends on a sponsor bank you do not contract with directly, and 2024 showed what that means: Thread Bank received an FDIC enforcement action naming its banking as a service programmes and Blue Ridge Bank went under an OCC consent order and offboarded fintech partners.
  • Programme approval by the bank is a separate gate from signing with Unit, and it can add months and impose product restrictions that were not visible during the commercial conversation.
  • Compliance obligations are shared but the operational load lands on you, and platforms consistently underestimate the staffing needed for disputes, escalations and the bank ongoing oversight requests.
  • Pricing is unpublished and blends platform fees, per-account and per-transaction charges and interchange sharing, which makes it hard to model unit economics before you have volume and easy to be surprised by the minimum.
  • Migrating a live deposit programme to a different provider or bank is extremely disruptive because it involves moving customer accounts and card credentials, so switching costs are far higher than for ordinary software.

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

Unit

On request
  • Unit Banking as a Service$undefined/year
    • Platform fee plus per-account and per-transaction charges, quoted
    • Interchange sharing arrangements negotiated per programme
    • Minimum commitment typical

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 Unit if

  • You need deposit accounts.
  • You work on Web, iOS, Android.
  • You also want card issuing.
Unit review

Questions people ask

Is Kong or Unit better?
Neither clearly leads. Kong starts at Free and Unit at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kong or Unit?
Kong has a free tier; the other does not. Paid plans start at Free for Kong and On request for Unit.
Does Kong or Unit run on more platforms?
Kong runs on Linux, Docker, Kubernetes. Unit runs on Web, iOS, Android.
Can I use Kong for free?
Yes. Kong has a free tier, so you can try it without paying. Unit 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 Unit is typically brought in for.
What can Kong do that Unit cannot?
Kong covers API Gateway, Authentication & Authorization, Rate Limiting, Kubernetes. Unit covers Deposit accounts, Card issuing, Payments, White label components.

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
Unit: Who actually holds the money?

A chartered partner bank, not Unit. Deposits sit at the sponsor bank and FDIC insurance flows from that bank, so its condition is your condition.

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
Unit: What happened with Unit sponsor banks in 2024?

Thread Bank received an FDIC enforcement action that explicitly named its banking as a service and lending as a service programmes, and Blue Ridge Bank was under an OCC consent order from January 2024 and offboarded fintech partners. Blue Ridge exited the order in late 2025.

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
Unit: What does Unit cost?

Not published. Expect a platform fee, per-account and per-transaction charges, an interchange share and a minimum commitment.

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
Unit: Do we need our own compliance team?

Yes. Unit supplies tooling and the bank sets the rules, but disputes, escalations and evidence for bank oversight require named people on your side.

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