new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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FastAPI

Answer questions about FastAPI as documented today: path operations and parameters, request and response models with Pydantic, dependency injection, security and OAuth2 flows, middleware and CORS, background tasks, WebSockets, testing with TestClient, and deployment — with exact signatures and defaults.

1,344 notes across 5 brains · updated 2026-08-15 · trained 75%

since last sitting: +39 newly passed — this brain is learning · the verified changelog →

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$ claude mcp add --transport http mozg \
https://mozg.sh/mcp --header "Authorization: Bearer …"
> use mozg/fastapi — …
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Ask it things like

answers 36/48 on its latest exam · anti-bluff 3/3
How do you create a dependency that requires an active user?Dependency Injection✓
When both a response_model and return type annotation are present, which takes priority?Request & Response Models✓
How do you declare a background task in a path operation?Background Tasks✓
Can you declare dependencies on a group of path operations without repeating the dependency in each route?Dependency Injection✓
What is the purpose of Annotated in dependency declarations?Dependency Injection✓
Why does FastAPI deployment typically require a TLS termination proxy?Deployment✓
What is the difference between single container with single process and single container with multiple processes?Deployment✓
What parameters are required to configure CORSMiddleware?Middleware & CORS✓

What is inside

asking this brain searches all 4
FastAPI · AdvancedAnswer questions from the FastAPI advanced guide: advanced dependency patterns, sub-applications and mounting, WebSockets, lifespan events, custom request and APIRoute classes, and the advanced security setups.234 notes87%FastAPI · DeploymentAnswer questions about deploying FastAPI as documented: server options, HTTPS, Docker, behind a proxy, and the deployment concepts pages.93 notes98%FastAPI · ReferenceAnswer questions about the FastAPI reference exactly as specified: the FastAPI class and its parameters, APIRouter, Request and Response classes, status codes and exceptions, and every parameter class with its arguments.197 notes80%FastAPI · TutorialAnswer questions from the FastAPI tutorial: path and query parameters with their validation options, request bodies and response models, dependencies, security, middleware, static files, testing and debugging — each with working code shapes.493 notes80%

What it can answer

48 coverage checks
75%
Answers 39 of the exam's 51 questionsIt answers 39 questions, 39 more than last time, out of an exam that grew by 51.Nothing it used to answer has stopped working.
✓Advanced Concepts6 / 6
▲Deployment6 / 7
▲Dependency Injection5 / 6
✓Request & Response Models5 / 5
✓Background Tasks3 / 3
▲Security & OAuth23 / 4
▲WebSockets3 / 4
▲Parameters2 / 4
▲Testing2 / 4
▲Middleware & CORS1 / 3
✕Path Operations & Decorators0 / 2
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Attacks survived

re-run weekly · 2026-08-10
✓gate-battery12/12 known hostile payloads caught by the ingest gate
✓injection-corpusevery active note scanned — no steering language
✓secret-corpusevery active note scanned — no keys or credentials

heuristic scans against known attack classes — measured and dated, not a promise of unpoisonability

Inside

  • Custom operationId in OpenAPI with operation_id parameter · openapi
  • Custom content type in OpenAPI with openapi_extra · openapi
  • Custom OpenAPI request body schema without Pydantic parsing · openapi
  • OpenAPI Operation Object definition · openapi
  • Exclude path operation from OpenAPI schema with include_in_schema · openapi
  • Generate unique operationId from function names using generate_unique_id_function · openapi
  • Use form feed character to truncate docstring in OpenAPI · openapi
  • OpenAPI Extensions with openapi_extra · openapi
  • Extend OpenAPI schema with openapi_extra parameter · openapi
  • Response status code parameter in path operations · path operations & decorators
  • Deprecate a path operation · path operations & decorators
  • Response description parameter · path operations & decorators
  • Path operation decorator parameters configuration · path operations & decorators
  • Tags parameter for path operations · path operations & decorators

Licence

CC BY-NC-SA 4.0

Use it, copy it, build on it, with credit. Selling it is not allowed.