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Head-to-head · Enterprise Service Bus Software

Red Hat 3scale API Management vs OpenCelium

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Red Hat 3scale API Management #7 in Enterprise Service Bus Software 7.9/10 Pricing on request ✓ 0 of 4 features Visit Red Hat
OpenCelium #11 in Enterprise Service Bus Software 7.4/10 Free plan Free plan✓ 2 of 4 features Visit OpenCelium

Red Hat 3scale API Management leads on 0 checks, OpenCelium on 3, and 0 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreRed Hat 3scale API Management · 7.9/10
  • Free planonly OpenCelium
  • Most featuresOpenCelium · 2 of 4

Red Hat 3scale API Management scores higher on our rubric for enterprise service bus software: 7.9 against 7.4 out of 10; our editors rank them #7 and #11.

OpenCelium offers free plan; Red Hat 3scale API Management doesn't publish it. On deployment model, Red Hat 3scale API Management gives you Hybrid where OpenCelium offers On-premises. OpenCelium offers message transformation; Red Hat 3scale API Management doesn't publish it. OpenCelium offers visual flow designer; Red Hat 3scale API Management doesn't publish it.

Red Hat 3scale API Management is the better fit for teams focused on API gateway management. OpenCelium is the better fit for small teams automating API integrations on a budget.

  • Red Hat 3scale API Management fits best

    Teams focused on API gateway management

  • OpenCelium fits best

    Small teams automating API integrations on a budget

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Red Hat 3scale API Management 7.9/10 Visit ↗ OpenCelium 7.4/10 Visit ↗
At a glance
Editor score 7.9 7.4
Ranking #7 in Enterprise Service Bus Software #11 in Enterprise Service Bus Software
Best for Teams focused on API gateway management Small teams automating API integrations on a budget
Pricing model Paid Free
Starting price Not published Not published
Free plan Not published ✓ (best)
Free trial — —
Deployment Cloud, Self-hosted Self-hosted, Cloud
Platforms Web Web
Support Tickets, Docs Email
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Red Hat 3scale API Management 0/4 · OpenCelium 2/4
Message transformation Not published ✓ (best)
Queue integration Not published Not published
High availability Not published Not published
Visual flow designer Not published ✓ (best)
Specs
Deployment model Hybrid On-premises
Protocol support Not published HTTP, JSON-RPC; documentation also references SOAP
Our review
Pros
  • Enforces API traffic controls and access policies
  • Combines analytics, application plans, and usage-based pricing rules
  • Supports customizable developer portals and reusable API backends
  • Visual multi-step workflows support branching, loops, and data mapping.
  • Run workflows manually, on a schedule, or from a webhook.
  • The Open plan includes all connectors and 25,000 API Ops/month.
Cons
  • ESB routing and transformation are not established features
  • Pricing requires contacting sales
  • Managed service ends June 30, 2027
  • Its focus is API workflows rather than a traditional message-queue bus.
  • The Open plan is capped at 25,000 API Ops/month.
  • Paid plans add allowances and support, but prices are not stated here.
Our verdict

Red Hat 3scale API Management helps organizations manage internal and external APIs, with capabilities for gateway enforcement, access policies, analytics, monetization, and developer workflows. It is aimed at mid-market and enterprise…

Read the review →

OpenCelium connects applications through their APIs using visual workflows. Teams define connectors and API calls, arrange execution order, and add branching, loops, field mapping, and transformations. Workflows can run manually, on a…

Read the review →
  1. Red Hat 3scale API ManagementEnterprise Service Bus Software 7.9Pricing on request
  2. OpenCeliumEnterprise Service Bus Software 7.4Free plan

Strengths and trade-offs

  • Red Hat 3scale API Management — where it wins

    • Enforces API traffic controls and access policies
    • Combines analytics, application plans, and usage-based pricing rules
    • Supports customizable developer portals and reusable API backends

    Where it doesn't

    • ESB routing and transformation are not established features
    • Pricing requires contacting sales
    • Managed service ends June 30, 2027

  • OpenCelium — where it wins

    • Visual multi-step workflows support branching, loops, and data mapping.
    • Run workflows manually, on a schedule, or from a webhook.
    • The Open plan includes all connectors and 25,000 API Ops/month.

    Where it doesn't

    • Its focus is API workflows rather than a traditional message-queue bus.
    • The Open plan is capped at 25,000 API Ops/month.
    • Paid plans add allowances and support, but prices are not stated here.
  • Red Hat 3scale API Management7.9/10 · Pricing on request

    A gateway-focused API management product, not a verified full ESB feature set.

    Visit Red HatFull verdict →
  • OpenCelium7.4/10 · Free plan

    An open-source API workflow platform for teams that need visual integrations on a budget.

    Visit OpenCeliumFull verdict →

More comparisons

All enterprise service bus software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update