Software · head to head
Asyncapi vs Hasura

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

Hasura
Software
GraphQL engine that instantly creates production-ready GraphQL API from databases
- 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; Hasura database support limited to PostgreSQL, MongoDB, ClickHouse, and MS SQL Server only
- They diverge on capability: Asyncapi covers API Specification, Hasura covers GraphQL API.
Where they differ
Only the attributes on which Asyncapi and Hasura actually diverge.
Identical on both: starting price (Free), pricing model (open-source), free tier (Yes), user rating (Not yet rated), category (Unknown).
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 Hasura
- GraphQL API
- Real-time subscriptions
- Access control
- PostgreSQL
- MySQL
- Webhooks
- REST APIs
- Cloud support
What people use each for
The jobs each tool is most often brought in to do.
Asyncapi
- API Developmentnot Hasura
- API Gatewaynot Hasura
- API Testingnot Hasura
- API Documentationnot Hasura
- Microservicesnot Hasura
Hasura
- Automatic GraphQL API generation from existing databasesnot Asyncapi
- Real-time data subscriptions for modern applicationsnot Asyncapi
- Backend infrastructure for web and mobile applicationsnot Asyncapi
- Event-triggered webhooks for database changesnot Asyncapi
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
Hasura
- Database support limited to PostgreSQL, MongoDB, ClickHouse, and MS SQL Server only
Pricing, plan by plan
Asyncapi
Free- Open SourceFree
- AsyncAPI specification
- Tools
- Community support
Hasura
FreeNo published plan breakdown. See the Hasura review.
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 Hasura if
- You need graphql api.
- You want to start without paying.
- You also want real-time subscriptions.
Questions people ask
- Is Asyncapi or Hasura better?
- Neither clearly leads. Asyncapi starts at Free and Hasura at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Asyncapi or Hasura?
- Asyncapi starts at Free and Hasura at Free.
- Does Asyncapi or Hasura run on more platforms?
- Asyncapi runs on Web, CLI, IDE Extensions. Hasura runs on Web.
- 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. Of those, api development and api gateway are not what Hasura is typically brought in for.
- What can Asyncapi do that Hasura cannot?
- Asyncapi covers API Specification, Code generation, Documentation, Multiple messaging protocols. Hasura covers GraphQL API, Real-time subscriptions, Access control, PostgreSQL.
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.
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.
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.
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.
SourceRelated pages
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