NEWJoin 2M+ software buyers|Get Weekly Insights, Trends & Expert PicksSubscribe free →

Helicone vs Kong Comparison

Last updated:

Helicone

4.6(145 reviews)

Starting at Free free

  • Small Business
  • Mid-Market

Helicone is an open-source LLM observability platform that works as a proxy — developers route their LLM API calls through Helicone's gateway with a single URL change, and it automatically logs every request, tracks cost…

Kong

3.9(15 reviews)

Starting at $250 /Month

  • Free Trial
  • Large Enterprises
  • Medium Business

Kong is API management software, that allows Web and Mobile applications to access data, content and functions published by 3rd party providers. Kong works with any Public or Private API as well as any type of data sourc…

Helicone leads on user satisfaction with a 4.6-star rating across 145 reviews.

Helicone vs Kong — at a glance

FeatureHeliconeKong
Rating4.6 / 53.9 / 5
Reviews14515
Starting priceFree free$250 /Month
Free trial No Yes
Free version No No
Best forSmall Business, Mid-Market, EnterpriseLarge Enterprises, Medium Business, Small Business
CategoryMLOps PlatformsAPI Management Software
PlatformsCloud, On-PremiseSaaS/Web/Cloud
APIAvailableAvailable
Support modesDiscord Community, GitHub Issues, Email Support, Enterprise SupportOnline
Certifications—SOC 2, GDPR, ISO 27001
Data residency—Global

Key differences between Helicone and Kong

  • Pricing: Helicone starts at Free free, while Kong starts at $250 /Month.
  • Free trial: Kong offers a free trial; Helicone does not.
  • Target audience: Helicone is built for Small Business and Mid-Market, while Kong targets Large Enterprises and Medium Business.
  • User satisfaction: Helicone scores higher with a 4.6-star average.
  • Deployment: Helicone supports Cloud, On-Premise; Kong supports SaaS/Web/Cloud.

Helicone vs Kong — find the better fit before you commit.

01

Which tool fits your team best

02

Which is actually cheaper for your team size

03

Where each product wins, per real buyers

Most MLOps Platforms tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.

Helicone logo
Talk to an expert
Talk to an expert
Kong - API Management Software
Talk to an expert
Talk to an expert

Free PDF comparison

Download this Helicone vs Kong comparison

Get the full side-by-side as a PDF — these picks plus the top MLOps Platforms tools, with verified ratings, pricing and features.

  • Side-by-side on pricing, features & ratings
  • Plus the category top 10, scored & ranked
  • Emailed to you — no on-screen download

No file downloads on screen — we email it to you. One-click unsubscribe anytime.

Helicone vs Kong: Biggest differences

Start here before you go deeper into features.

Helicone

Best for

Small Business, Mid-Market, Enterprise

Kong

Best for enterprises needing flexible, extensible API management with strong developer focus.

Choose if
  • You require a highly customizable API gateway with plugin-oriented architecture.
  • Your team consists of API developers, DevOps, or technical product managers.
  • You operate a medium to large enterprise with complex microservices architectures.
Consider alternatives if
  • Your team includes non-technical users needing an intuitive, user-friendly UI.
  • You are a small business lacking dedicated API development resources.

Helicone typically suits Small Business and Mid-Market. Kong tends to fit Large Enterprises and Medium Business better. The right choice depends on your team size, workflow, and whether a free trial matters.

Description

Helicone is an open-source LLM observability platform that works as a proxy — developers route their LLM API calls through Helicone's gateway with a single URL change, and it automatically ... Read More about Helicone

Kong is API management software, that allows Web and Mobile applications to access data, content and functions published by 3rd party providers. Kong works with any Public or Private API as ... Read More about Kong

Entry Level Pricing

  • Starts from Free
  • Starts from $250

Free Trial Availability

  • No free trial
  • Free Trial available

SpotScore

What's this? ↗

9.2/10

9.3/10

User Ratings

Based on verified Spotsaas reviews

3.87

(15)

Best Company Size

—
Medium BusinessLarge Enterprises
Get pricing help
Get pricing help

Where each option fits best

See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.

Based on buyer reviews and verified product data collected by Spotsaas.

Strengths

Key strengths

Helicone

  • Zero-Code Instrumentation: One URL change instruments every LLM call — no SDK, no decorators, no code changes beyond the base URL.
  • Immediate Cost Visibility: Real-time cost dashboard shows exactly how much each user, feature, or prompt variation is spending — before the cloud bill arrives.
  • LLM Cost Reduction: Built-in prompt caching reduces API calls for repeated inputs, turning the observability layer into a cost-savings tool.
Best fit

Best fit

Helicone

  • Indie AI developers and small teams who want instant LLM observability without instrumenting code
  • SaaS companies building per-user AI features who need user-level cost tracking and rate limiting
  • Teams looking to reduce OpenAI bills by adding prompt caching with minimal integration effort

Software Demo

Demo

Need a second opinion?

Get decision help from a software advisor

Share your priorities, budget, and team needs, and we’ll help you narrow the options and understand the tradeoffs before you talk to vendors.

Spotsaas advisor
Get decision help from a software advisor
  • Independent advice — matched to your business
  • Understand the tradeoffs before you talk to vendors
  • Free 15-min call with a software advisor.

Step 1 of 4

How big is your team?

We tailor recommendations to companies your size.

Trusted by teams at

How do Helicone and Kong Compare on Features?

Total Features

8 Features

17 Features

Unique Features

No unique features

No unique features

Get Quote
Get Quote

Compare Helicone and Kong on pricing

Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.

Pricing Option

      Starting From

      • Free
      • $250

      Pricing Plans

      • Free

        Free

        • 100k requests/month

        • All providers

        • Dashboard

        Show more +

      • Pro

        $20

        paid

        • 1M requests/month

        • Custom properties

        • Team access

        Show more +

      • Enterprise

        Custom

        paid

        • Unlimited requests

        • SSO

        • On-premise

        Show more +

      • Not Available

      Pricing Page

      Pricing information not available

      Kong pricing

      Helicone vs Kong: Other Details

      Organization Types supported

      • Large Enterprises
      • Medium Business
      • Small Business
      • Individuals
      • Freelancers
      • Large Enterprises
      • Medium Business
      • Small Business
      • Individuals
      • Freelancers

      Platforms Supported

      • Browser Based (Cloud)
      • Mobile - Android
      • Installed - Windows
      • Installed - Mac
      • Mobile - iOS
      • Browser Based (Cloud)
      • Browser Based (Cloud)
      • Mobile - Android
      • Installed - Windows
      • Installed - Mac
      • Mobile - iOS
      • Browser Based (Cloud)

      Modes of support

      • 24/7 (Live rep)
      • Business Hours
      • Online
      • 24/7 (Live rep)
      • Business Hours
      • Online

      API Support

      • Available
      • Available
      Get help choosing
      Get help choosing

      Helicone vs Kong Security & Compliance

      Certifications, data handling, and security controls for IT and compliance evaluators.

      SOC 2

      —
      ✓ Yes

      GDPR

      —
      ✓ Yes

      ISO 27001

      —
      ✓ Yes

      Single Sign-On (SSO)

      —
      ✓ Yes

      Multi-Factor Auth (MFA)

      —
      ✓ Yes

      Data Encryption

      —
      ✓ Yes

      Audit Logs

      —
      ✓ Yes

      Data Residency

      —
      🌐 Global

      Helicone User Reviews & Rating Comparison

      User Ratings

      4.6

      (based on 145 reviews)

      Rating Distribution

      0

      0

      0

      0

      0

      6

      7

      1

      0

      1

      Spotsaas Editor’s POV generated by AI

      Buyer sentiment

      Buyer sentiment is very strong across 145 reviews, with consistently positive feedback.

      What buyers like

      • Two-minute integration via proxy — change one URL and every LLM call is automatically logged with zero SDK changes or code instrumentation.
      • Built-in prompt caching and rate limiting turn a logging tool into an active cost-reduction layer, not just observability.
      • Supports every major LLM provider through a single proxy endpoint — no separate integrations per provider.

      Common complaints

      • Proxy architecture adds a network hop to every LLM call — latency-sensitive applications (real-time voice agents) may prefer SDK-based instrumentation.
      • Less sophisticated evaluation and prompt management features than LangSmith or Langfuse — Helicone is strongest on logging/cost; weaker on systematic evaluation.

      Buyer sentiment

      Overall positive sentiment highlights Kong's flexibility, strong community support, and extensibility, tempered by concerns over usability and interface performance.

      What buyers like

      • Flexibility and versatility
      • Community and documentation support
      • Plugin architecture and extensibility

      Common complaints

      • Complex and slow interface
      • Lack of user-friendly UI for non-developers

      Pros and Cons

      • Two-minute integration via proxy — change one URL and every LLM call is automatically logged with zero SDK changes or code instrumentation.

      • Built-in prompt caching and rate limiting turn a logging tool into an active cost-reduction layer, not just observability.

      • Supports every major LLM provider through a single proxy endpoint — no separate integrations per provider.

      • Proxy architecture adds a network hop to every LLM call — latency-sensitive applications (real-time voice agents) may prefer SDK-based instrumentation.

      • Less sophisticated evaluation and prompt management features than LangSmith or Langfuse — Helicone is strongest on logging/cost; weaker on systematic evaluation.

      • Highly flexible and versatile with plugin-oriented architecture

      • Strong documentation and active developer community

      • Open source with built-in plugins enhancing extensibility

      • Interface can be slow and intimidating for novice users

      • Limited plugin development support for Python, Ruby, and JavaScript

      Positive Reviews

      No reviews available for the product

      No reviews available for the product

      Used Helicone or Kong? Tell buyers what actually differs.

      Helicone and Kong Customers

      Customers

      No Customers information available.

      Expedia

      Expedia

      Verifone

      Verifone

      WeWork

      WeWork

      Media and Screenshots

      Screenshots

      No screenshots available.

      Automatic Alerts

      2 Screenshots

      Videos

      No videos available.

      video-0

      1 Videos

      Top Alternatives to Helicone and Kong in 2026

      Expand your comparison

      Add another option to compare side by side

      Search by product name to compare pricing, fit, and buyer feedback in one view.

      Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].

      Frequently asked questions

      Which is better, Helicone or Kong?
      Helicone edges out the other on user ratings (4.6 vs 3.9). That said, the best pick depends on your use case, so use the comparison tables above to evaluate each dimension.
      Do Helicone and Kong offer a free trial?
      Kong offers a free trial. Helicone does not.
      What is the starting price of Helicone vs Kong?
      Helicone starts at Free free. Kong starts at $250 /Month.
      What are the top alternatives to Helicone?
      Top alternatives to Helicone include Langfuse, Comet ML, LangSmith, Embrace.io, ManageEngine Applications Manager.
      What are the top alternatives to Kong?
      Top alternatives to Kong include DreamFactory, Dell Boomi API Management, Apigee Edge, Akana Platform, MuleSoft Anypoint Platform.