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flespi MQTT Broker

Freemium#25 of 46 in MQTT Broker Software

flespi MQTT Broker: A managed MQTT broker with shared subscriptions and REST controls, priced from €130/month. Ranked #25 of 46 in MQTT Broker Software by our editors (6.7/10); pricing: Free plan; best for managed MQTT with shared subscriptions and REST controls.

6.7/10Editor score
flespi MQTT Broker6.7 Visit flespi

At a glance

  • Editor score
    6.7 / 10
  • Pricing
    Free plan
  • Best for
    Managed MQTT with shared subscriptions and REST controls
  • Free plan
    Yes
  • Paid from
    €130/mo
  • Deployment model
    Managed
  • Facts checked
    14 Nov 2026
  • Where it wins

    • Supports MQTT 3.1, 3.1.1, and 5.0 over TCP and WebSockets
    • Combines retained messages, persistent sessions, and shared subscriptions
    • REST API supports message publishing and session management
  • Where it doesn't

    • Paid plans start at €130/month, with usage-based extras
    • The Free plan is positioned for testing and development
    • The broker is part of the broader flespi platform

Our verdict on flespi MQTT Broker

For IoT applications and software services that need a cloud-hosted message broker, flespi MQTT Broker combines protocol support with controls for client access and message flow. It supports MQTT 3.1, 3.1.1, and 5.0 over TCP and WebSockets, with SSL-secured connection options. Token-based authorization and ACLs govern access to topics, while retained messages and persistent sessions support common MQTT patterns. This is a managed service rather than open-source software, and it can be used separately from flespi's telematics services.

Its feature set goes beyond basic message routing. Shared subscriptions offer load balancing and sticky distribution, and a REST API can publish messages and manage sessions. Broker logs are also available through REST or MQTT. The combination may suit teams that want both MQTT client access and API-based broker operations without managing broker hosting themselves. The published platform details describe web and API access, but do not identify third-party integrations, so buyers with a specific ecosystem requirement should verify fit before committing.

According to the vendor's pricing page, the Free plan is for testing and development. Commercial (Start) is €130/month, Commercial (Pro) €400/month, Commercial (Enterprise) €1,000/month, and Commercial (Ultimate) €3,000/month; each paid tier is described as pay-as-you-use. Pricing applies to the broader flespi platform and includes usage-based extras, rather than being standalone broker pricing. The documented active MQTT session limit for the cheapest paid tier is 5,000. The Free plan offers a way to evaluate the service, while the entry commercial tier makes the cost of production use worth weighing against a broker with separately stated standalone pricing. Pick flespi when its managed MQTT capabilities and REST controls align with your platform needs; look elsewhere if you require a standalone broker price or a specified integration ecosystem.

Your product? Our editors can test flespi MQTT Broker in depth and publish a review, labelled as paid · from $149/mo →

flespi MQTT Broker pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 14 Nov 2026.
See plans on flespi.com

All 5 flespi MQTT Broker plans and prices →

flespi MQTT Broker fact sheet

Free planYes
Paid from€130/mo
Deployment modelManaged
MQTT versions3.1, 3.1.1, 5.0
Retained messagesYes
ClusteringNot verified
Connection limit5000 connections
Authentication methodsflespi token as username or password
DeploymentCloud
PlatformsWeb
SupportLive chat, Email, Community, Docs
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
PricingFree plan (source)
Websiteflespi.com
Facts checked14 Nov 2026

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Featured on iTechGuides — flespi MQTT Broker 6.7/10

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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

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