API Management · head to head
Asyncapi vs Backendless

Asyncapi
API Management
Specification and tools for defining asynchronous APIs
- From
- Free
- Rated
- -

Backendless
API Management
Visual app development platform with REST APIs and cloud backend
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Asyncapi complex to implement and debug asynchronous operations due to their non-linear and concurrent nature; Backendless free tier limited to 50 API requests per minute and 20 database tables
- They diverge on capability: Asyncapi covers API Specification, Backendless covers REST API.
Where they differ
Only the attributes on which Asyncapi and Backendless actually diverge.
| Attribute | Asyncapi | Backendless |
|---|---|---|
| Pricing model | open-source | Unknown |
| Platforms | Web, CLI, IDE Extensions | Cloud, Visual builder |
| Founded | 2019 | 2012 |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (API Management).
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 Asyncapi
- API Specification
- Code generation
- Documentation
- Multiple messaging protocols
- Code generators
- Specification support
- Tools support
- CLI support
Only in Backendless
- REST API
- Real-time database
- Cloud code
- Custom integrations
- Webhooks
- Cloud functions
- Cloud support
- Visual builder support
What people use each for
The jobs each tool is most often brought in to do.
Asyncapi
- API Development
- API Gateway
- API Testing
- API Documentation
- Microservices
Backendless
- API Development
- API Gateway
- API Testing
- API Documentation
- Microservices
Both are used for api development, api gateway, api testing, api documentation, microservices, on those jobs the choice comes down to price and fit rather than capability.
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Asyncapi
- Complex to implement and debug asynchronous operations due to their non-linear and concurrent nature
- Keeping AsyncAPI documents up to date is challenging as systems evolve
- Tracing and debugging asynchronous operations is more difficult than synchronous request-response patterns
Backendless
- Free tier limited to 50 API requests per minute and 20 database tables
- Smaller community and integration ecosystem compared to Firebase or AWS
- Customization beyond codeless tools requires developer expertise
- Limited documentation for advanced use cases and edge cases
Pricing, plan by plan
Asyncapi
Free- Open SourceFree
- AsyncAPI specification
- Tools
- Community support
Backendless
Free- FreeFree
- 50 API requests/minute
- 20 database tables
- 1 GB file storage
- Scale Variable$15/month
- Unlimited API requests/month
- 100 database tables
- 10 GB file storage
- Scale Fixed$15/month
- Same as Scale Variable
- Fixed monthly pricing
Which should you pick?
Choose Asyncapi if
- You need api specification.
- You want to start without paying.
- You work on Web, CLI, IDE Extensions.
- You also want code generation.
Choose Backendless if
- You need rest api.
- You want to start without paying.
- You work on Cloud, Visual builder.
- You also want real-time database.
Questions people ask
- Is Asyncapi or Backendless better?
- Neither clearly leads. Asyncapi starts at Free and Backendless at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Asyncapi or Backendless?
- Asyncapi starts at Free and Backendless at Free.
- Does Asyncapi or Backendless run on more platforms?
- Asyncapi runs on Web, CLI, IDE Extensions. Backendless runs on Cloud, Visual builder.
- Can I use Asyncapi for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Asyncapi best used for?
- Asyncapi is most often used for api development, api gateway, api testing, api documentation.
- What can Asyncapi do that Backendless cannot?
- Asyncapi covers API Specification, Code generation, Documentation, Multiple messaging protocols. Backendless covers REST API, Real-time database, Cloud code, Custom integrations.
Answered from the vendors’ own pages
Asyncapi: What is AsyncAPI used for?
AsyncAPI is an open-source specification for defining and documenting asynchronous APIs, message-driven systems, and event-driven architectures. It serves the same purpose for async APIs as OpenAPI does for REST APIs, providing standardized documentation, code generation, and tooling.
SourceBackendless: Does Backendless have a free tier?
Backendless Free plan ($0/month) includes 50 API requests per minute, 20 database tables, 1 GB file storage, 1 visualization, 2 security roles, and basic cloud code capabilities.
SourceAsyncapi: Is AsyncAPI free to use?
Yes, AsyncAPI is completely free and open-source. It is hosted by the Linux Foundation and supported by community contributions and sponsorships from companies like Postman, IBM, IQVIA Technology, and Solace.
SourceBackendless: What features does the Scale plan include?
Scale plan ($15+/month) provides unlimited API requests per month, 100 database tables, 10 GB file storage, 5 visualizations, 10 custom API keys, daily backups, free SSL certificates, and 1,000 real-time connections.
SourceAsyncapi: What protocols and technologies does AsyncAPI support?
AsyncAPI supports multiple protocols and technologies including Kafka, RabbitMQ, MQTT, Socket.IO, AWS EventBridge, and others. It provides language support for JavaScript/TypeScript, Python, Java, Go, C#/.NET, Kotlin, and PHP.
SourceBackendless: Can I add more storage or increase API limits?
Yes, Backendless offers Function Packs ranging from $5-$399/month to increase specific limits such as storage, API requests, or security features.
SourceAsyncapi: Does AsyncAPI have IDE support?
Yes, AsyncAPI has IDE extensions available for VSCode and IntelliJ, along with CLI utilities and GitHub Actions integration for developers.
SourceBackendless: Does Backendless support offline functionality?
Backendless supports real-time sync and offline capabilities for mobile apps, allowing data to sync when connectivity is restored.
SourceBackendless: Is Backendless Pro available for self-hosting?
Yes, Backendless Pro Community Edition is available under free licensing for core functionality. Managed Backendless is a paid option for self-hosted deployments with request-based pricing.
SourceBackendless: What are Backendless's integration limitations?
While Backendless supports many integrations, it has a smaller integration library compared to competitors. Finding solutions to edge cases or complex setups may require more development effort.
Source