toolgrep / Email & messaging / EMQX Cloud Serverless

Alternatives to EMQX Cloud Serverless

EMQX Cloud Serverless: Serverless MQTT broker with pay-as-you-go pricing. 8 products similar to EMQX Cloud Serverless, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 3 of 8 offer an MCP server, 1 of 8 is open source.

IBM Cloud Free Tier
Free IBM Cloud account with access to 40+ always-free products and a USD 200 credit.
Hosting & infrastructure free tierAPI
CloudAMQP
Managed RabbitMQ and LavinMQ servers hosted in the cloud
APIs & backend free tierAPISDK
Squidex
Open source headless CMS with a REST and GraphQL API
Frontend & design free tierAPIopen source
HiveMQ Platform
Industrial data platform that connects, contextualizes, analyzes, and acts on operational data across OT, IT, edge, and cloud.
Email & messaging free tierAPI
ntail
Serverless Kafka with zero bandwidth fees
APIs & backend free tierAPI
DatoCMS
Headless CMS with GraphQL and REST APIs for delivering content to websites, apps, and digital channels
Frontend & design free tierAPIMCPSDK
XFlux
X/Twitter read API with account monitors and signed webhooks
APIs & backend free tierAPIMCP
Prefect Cloud
Managed workflow orchestration platform for data, ML, and AI pipelines
Analytics & data free tierAPIMCPSDK

Side by side

Product	Pricing	Free tier	API	MCP server	SDK	Open source
EMQX Cloud Serverless	Freemium · from $0	yes	yes	no	—	no
IBM Cloud Free Tier	Freemium	yes	yes	no	—	no
CloudAMQP	Freemium · from $0	yes	yes	no	yes	no
Squidex	Freemium · from €29/month (cloud); free self-hosted under MIT license	yes	yes	—	—	yes
HiveMQ Platform	Freemium · from $299/month	yes	yes	no	—	no
ntail	Freemium · from $50/month (paid plan floor: 2 MiB/s combined data transfer)	yes	yes	no	no	no
DatoCMS	Freemium · from €149/month (Professional, billed annually); free plan available	yes	yes	yes	yes	no
XFlux	Freemium · from $19/mo	yes	yes	yes	no	no
Prefect Cloud	Freemium · from $0 (Hobby tier); Starter $100/mo; Team $100/user/mo; Enterprise custom	yes	yes	yes	yes	no

Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.

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