Softwr

APIs · head to head

Kong vs Sila

Kong logo

Kong

APIs

Cloud-native API gateway and service connectivity platform

From
Free
Rated
-
Full reviewWebsite
Sila logo

Sila

APIs

US money movement API for ACH, RTP and FedNow with KYC and ledgering built in

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; Sila no pricing is published, so you cannot compare Sila against Moov or Dwolla without entering two sales processes, and small programmes frequently find the monthly minimum dominates their cost at low volume.
  • They diverge on capability: Kong covers API Gateway, Sila covers ACH origination.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Kong and Sila actually diverge.

Attributes where Kong and Sila differ
AttributeKongSila
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 Sila

  • ACH origination
  • Instant rails
  • KYC and KYB
  • Virtual accounts
  • Ledger
  • Wallets and holds
  • Webhooks
  • Bank-side deployment

What people use each for

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

Kong

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

Sila

  • A small fintech that needs ACH, identity verification and a ledger from one vendor because it has no compliance team to assemble threenot Kong
  • A marketplace paying out to sellers that wants same-day ACH and instant push options without becoming a money transmitter itselfnot Kong
  • A community bank replacing batch file ACH processing with an API so it can offer real-time payments to business customersnot Kong
  • A lending platform that must verify business identity, disburse funds and collect repayments on a schedule from a single integrationnot 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

Sila

  • No pricing is published, so you cannot compare Sila against Moov or Dwolla without entering two sales processes, and small programmes frequently find the monthly minimum dominates their cost at low volume.
  • Sila is materially smaller and less well capitalised than the banking-as-a-service names it competes with, which matters because your customer funds and your payment rails depend on the vendor still trading in three years.
  • The sponsor bank behind your programme determines what you can offer and how fast you can change it, and bank partnerships in this sector have been reshuffled repeatedly since 2023, so a bank change during your contract is a realistic risk rather than a theoretical one.
  • Coverage is United States only, so any product with cross-border ambitions needs a second payments vendor and a second reconciliation process from the outset.
  • Onboarding involves compliance diligence on your own programme, and teams routinely underestimate this, with weeks lost between signing and first live transaction while policies, flow of funds diagrams and BSA arrangements are reviewed.

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

Sila

On request
  • Sila Payments Platform$undefined/month
    • ACH, RTP and FedNow
    • KYC and KYB verification
    • Virtual accounts and ledger

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 Sila if

  • You need ach origination.
  • You work on Web, API.
  • You also want instant rails.
Sila review

Questions people ask

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

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
Sila: Does Sila require a sponsor bank?

Yes. Funds sit at a partner bank, and which bank that is affects your product features and your regulatory exposure, so ask before signing.

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
Sila: Is Sila still operating?

Yes. It continues to trade and announced an API integration with GBank in 2025 covering ACH, RTP and FedNow.

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
Sila: What does it cost?

Sila does not publish rates. Expect per-transaction pricing plus a monthly minimum, quoted after a compliance conversation.

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
Sila: Can I use it outside the United States?

No. Sila covers US rails only.

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