Comparison

Axum vs FastAPI

On the evidence we track, FastAPI leads this comparison with a composite score of 78/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Axum49
★FastAPI78
Score
vioscaleAI score
Axum49 / 100medium · 52%
FastAPI78 / 100medium · 69%
Pricing
Free tier
Axum✓
FastAPI✓
Model
Price level
Axumfree
FastAPIfree
Integrations
Count
Axum–
FastAPI11
Reliability
Status page
Axum–
FastAPI✓
Adoption
Dependent repos
Axum4,645
FastAPI43,608
Github stars
Axum27,453
FastAPI102,768
Package downloads weekly
Axum–
FastAPI97,378,207
Stackoverflow questions
Axum–
FastAPI31,000
Activity
Commits last 30d
Axum22
FastAPI63
Release
Cadence days
Axum–
FastAPI14
History
FastAPI20 items
License
Spdx
AxumMIT
FastAPIMIT
Language
Primary
AxumRust
FastAPIPython
Market
Availability
Content
Faq
FastAPI8 items

Capabilities

Feature-by-feature on the axes that matter for backend frameworks. “-” means undocumented, not absent.

Capabilities
Language runtime
AxumRust
FastAPIPython
Architecture style
Axum-
FastAPIStructured di
Async model
AxumEvent loop async
FastAPIEvent loop async
Orm included
Axum-
FastAPI-
Templating included
Axum-
FastAPI-
Dependency injection
Axum-
FastAPI✓
CLI scaffolding
Axum-
FastAPI-
Openapi autogen
Axum-
FastAPI✓
Websocket support
Axum-
FastAPI✓
Background jobs included
Axum-
FastAPI✓
Testing framework included
Axum-
FastAPI✓
API first
Axum✓
FastAPI✓
Admin UI generated
Axum-
FastAPI-
License type
Axum-
FastAPI-

What each one is

The product in its own terms, so the numbers below have context.

Axum

A Rust library enabling declarative HTTP routing, request data parsing, and response generation for web service development with minimal boilerplate

Independently observed

FastAPI

Leader

A Python web framework designed for creating APIs with automatic documentation, built on standard protocols and type hints to enable rapid development and deployment.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Axum

Open source
as of verify ↗

FastAPI

Leader
Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Axum–
FastAPI✓
CLI
Axum–
FastAPI✓
Deployment
Cloud / SaaS
Axum–
FastAPI✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Axum

Not documented yet.

FastAPI

Leader
11 total
  • Starlette
  • Pydantic
  • OpenAPI
  • JSON Schema
  • Swagger UI
  • ReDoc
  • OAuth2
  • JWT
  • HTTP Basic authentication
  • Cookies
  • Session management
Independently observed
Still deciding?

Axum or FastAPI: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.