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APIs · head to head

Apigee vs Solace PubSub+

Apigee logo

Apigee

APIs

API management platform for designing, securing, and scaling APIs

From
$500/monthly
Rated
-
Full reviewWebsite
Solace PubSub+ logo

Solace PubSub+

Databases

Multi-protocol event broker sold as software, cloud service or a hardware appliance

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Solace PubSub+ has a free tier, so it costs nothing to try first.
  • Each has a real cost: Apigee the free evaluation is a sandbox limited to 60 days; Solace PubSub+ no pricing is published at any tier, so evaluation requires a sales engagement before you can even judge whether it is in budget, and broker tier sizing determines cost in ways buyers frequently get wrong.
  • They diverge on capability: Apigee covers API Gateway, Solace PubSub+ covers Multi-protocol broker.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Apigee and Solace PubSub+ actually diverge.

Attributes where Apigee and Solace PubSub+ differ
AttributeApigeeSolace PubSub+
Starting price$500/monthlyFree
Pricing modelsubscriptionquote
Free tierNoYes
PlatformsCloud, Hybrid, On-premisesLinux, Docker, Kubernetes, Cloud, Hardware appliance
CategoryAPIsDatabases
Founded2006Unknown

Identical on both: user rating (Not yet rated).

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 Apigee

  • API Gateway
  • API Analytics
  • Developer Portal
  • Google Cloud services
  • Azure
  • AWS
  • Okta
  • Cloud support

Only in Solace PubSub+

  • Multi-protocol broker
  • Dynamic message routing
  • Hardware appliance
  • Event Portal
  • Guaranteed delivery
  • Mission Control
  • Topic hierarchies and wildcards
  • Kafka and MQ bridging

What people use each for

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

Apigee

  • Publishing, securing and versioning APIs for an enterprise API programnot Solace PubSub+
  • Monetizing APIs and running a developer portalnot Solace PubSub+
  • Analyzing API traffic and defending APIs against bots and abusenot Solace PubSub+

Solace PubSub+

  • A bank building an event mesh across regions where a Java JMS application and an MQTT mobile client must share the same topic spacenot Apigee
  • An exchange or trading platform with a latency budget that needs the hardware appliance rather than a software brokernot Apigee
  • An airline distributing operational events to ground systems, aircraft and partner APIs over different protocolsnot Apigee
  • A manufacturer bridging factory MQTT telemetry into an enterprise Kafka estate without writing translation servicesnot Apigee

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Apigee

  • The free evaluation is a sandbox limited to 60 days
  • Pay-as-you-go has no SLA available at all
  • Pay-as-you-go bills environments separately from API calls, with a Base environment costing $365 per month per region
  • The Base environment is capped at 50 QPS with an SLA of up to 99%
  • Standard API Proxy calls are billed at $20 per 1M calls up to 50M, and Extensible API Proxy calls at $100 per 1M calls up to 50M
  • API Analytics is a paid add-on at $20 per 1M API calls and cannot be bought on a Base environment
  • Advanced API Security is a paid add-on at $350 per 1M API calls and cannot be bought on a Base environment
  • Monetization is unavailable on pay-as-you-go and requires a subscription tier
  • Additional API proxy deployments beyond those included cost $0.04 per hour per region on a Comprehensive environment
  • Subscription tiers Standard, Enterprise and Enterprise Plus are quote only with no published price
  • Google Cloud networking charges for IP addresses, data transfer out and forwarding rules are billed on top of Apigee usage

Solace PubSub+

  • No pricing is published at any tier, so evaluation requires a sales engagement before you can even judge whether it is in budget, and broker tier sizing determines cost in ways buyers frequently get wrong.
  • The free Standard edition has hard capacity and support limits, which makes it useful for development but means any real deployment triggers a commercial negotiation.
  • The proprietary SMF protocol gives the best performance and feature coverage, so teams that lean on it acquire real switching costs even though open protocols are supported.
  • Operating a self-managed high availability broker pair with disaster recovery is a specialist task, and Solace expertise is scarce in the hiring market compared with Kafka skills.
  • Event Portal and Mission Control are licensed as part of platform packages, so the governance tooling that makes an event mesh manageable is not simply included with the broker.

Pricing, plan by plan

Apigee

$500/monthly
  • Starter$500/monthly
    • API gateway
    • Analytics
    • Developer portal
  • Professional$2500/monthly
    • Advanced security
    • Traffic management
    • Monetization
  • Enterprise$undefined/monthly
    • Custom deployment
    • SLA
    • Dedicated support

Solace PubSub+

Free
  • Software Event Broker StandardFree
    • Free for production within capacity limits
    • Single node, capped connections and queues
    • No vendor support
  • Solace Cloud$undefined/year
    • Managed brokers in tiers from ENT-250 to ENT-100K
    • Foundation, Accelerate and Scale platform packages
    • Fixed subscription or annual consumption drawdown
  • Software Enterprise self-managed$undefined/year
    • Deploy in your own Kubernetes, VMs or data centre
    • High availability and disaster recovery
    • Support with SLA
  • Hardware appliance$undefined/year
    • Purpose-built appliance with FPGA message offload
    • Deterministic low latency
    • Sold with support contract

Which should you pick?

Choose Apigee if

  • You need api gateway.
  • You work on Cloud, Hybrid, On-premises.
  • You also want api analytics.
Apigee review

Choose Solace PubSub+ if

  • You need multi-protocol broker.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Cloud, Hardware appliance.
  • You also want dynamic message routing.
Solace PubSub+ review

Questions people ask

Is Apigee or Solace PubSub+ better?
Neither clearly leads. Apigee starts at $500/monthly and Solace PubSub+ at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apigee or Solace PubSub+?
Solace PubSub+ has a free tier; the other does not. Paid plans start at $500/monthly for Apigee and Free for Solace PubSub+.
Does Apigee or Solace PubSub+ run on more platforms?
Apigee runs on Cloud, Hybrid, On-premises. Solace PubSub+ runs on Linux, Docker, Kubernetes, Cloud, Hardware appliance.
Can I use Solace PubSub+ for free?
Yes. Solace PubSub+ has a free tier, so you can try it without paying. Apigee starts at $500/monthly.
What is Apigee best used for?
Apigee is most often used for publishing, securing and versioning apis for an enterprise api program, monetizing apis and running a developer portal, analyzing api traffic and defending apis against bots and abuse. Of those, publishing, securing and versioning apis for an enterprise api program and monetizing apis and running a developer portal are not what Solace PubSub+ is typically brought in for.
What can Apigee do that Solace PubSub+ cannot?
Apigee covers API Gateway, API Analytics, Developer Portal, Google Cloud services. Solace PubSub+ covers Multi-protocol broker, Dynamic message routing, Hardware appliance, Event Portal.

Answered from the vendors’ own pages

Apigee: Does Apigee offer a free tier?

Yes, Apigee offers an always-free tier with access to 20+ products for common API management use cases, and a separate free trial providing $300 in credit for proof-of-concept projects.

Source
Solace PubSub+: Is there a free version of Solace?

Yes, the Standard edition of the software event broker is free for production within capacity limits, with no vendor support.

Apigee: What is Apigee's pricing model?

Apigee uses a pay-as-you-go pricing model where customers pay based on API calls and usage, with a new pay-as-you-go model designed to optimize costs.

Source
Solace PubSub+: Does Solace publish prices?

No. Cloud, software and appliance are all quoted, based on broker tier from ENT-250 to ENT-100K and licensing model.

Apigee: Is there a commitment required to start with Apigee?

No. The free trial provides $300 in credit with no automatic charges or commitment required, allowing customers to evaluate the platform risk-free.

Source
Solace PubSub+: Why buy an appliance in 2026?

Deterministic low latency with message processing offloaded to hardware, which matters in capital markets and little elsewhere.

Apigee: Are there usage limits I should know about?

Apigee documentation includes a limits page covering usage constraints, though specific limits are not detailed in the pricing section.

Source
Solace PubSub+: Can it replace Kafka?

Not for log retention and stream reprocessing. It is stronger at multi-protocol routing and guaranteed delivery, and the two are often bridged.

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