FastAPI Expert
Jeffallan/claude-skills
Builds async Python APIs with FastAPI and Pydantic V2, covering endpoints, JWT authentication, async SQLAlchemy, WebSockets and pytest checks against the OpenAPI docs.
Build high-performance async APIs with FastAPI, SQLAlchemy 2.0, and Pydantic V2.
Install Fastapi Pro
$ npx skills add davila7/claude-code-templates --skill fastapi-pro -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install davila7/claude-code-templates fastapi-pro --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/davila7/claude-code-templates.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cli-tool/components/skills/development/fastapi-pro .claude/skills/fastapi-pro && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "fastapi-pro" agent skill from https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/development/fastapi-pro into .claude/skills/fastapi-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fastapi-pro", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/development/fastapi-proType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add davila7/claude-code-templates --skill fastapi-pro -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install davila7/claude-code-templates fastapi-pro --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davila7/claude-code-templates.git skills-src && mkdir -p .agents/skills && cp -r skills-src/cli-tool/components/skills/development/fastapi-pro .agents/skills/fastapi-pro && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "fastapi-pro" agent skill from https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/development/fastapi-pro into .agents/skills/fastapi-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fastapi-pro", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add davila7/claude-code-templates --skill fastapi-pro -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install davila7/claude-code-templates fastapi-pro --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davila7/claude-code-templates.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/cli-tool/components/skills/development/fastapi-pro .cursor/skills/fastapi-pro && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "fastapi-pro" agent skill from https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/development/fastapi-pro into .cursor/skills/fastapi-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fastapi-pro", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/davila7/claude-code-templates.git --path cli-tool/components/skills/development/fastapi-pro--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add davila7/claude-code-templates --skill fastapi-pro -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install davila7/claude-code-templates fastapi-pro --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davila7/claude-code-templates.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/cli-tool/components/skills/development/fastapi-pro .gemini/skills/fastapi-pro && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "fastapi-pro" agent skill from https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/development/fastapi-pro into .gemini/skills/fastapi-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fastapi-pro", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install davila7/claude-code-templates fastapi-proInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add davila7/claude-code-templates --skill fastapi-pro -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/davila7/claude-code-templates.git skills-src && mkdir -p .github/skills && cp -r skills-src/cli-tool/components/skills/development/fastapi-pro .github/skills/fastapi-pro && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "fastapi-pro" agent skill from https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/development/fastapi-pro into .github/skills/fastapi-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fastapi-pro", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add davila7/claude-code-templates --skill fastapi-pro -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install davila7/claude-code-templates fastapi-pro --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/davila7/claude-code-templates.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/cli-tool/components/skills/development/fastapi-pro .opencode/skills/fastapi-pro && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "fastapi-pro" agent skill from https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/development/fastapi-pro into .opencode/skills/fastapi-pro/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fastapi-pro", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
fastapi-pro- GitHub stars
- 32k
- Used in
- 7 other repos
- Token cost
- ~1.6k tokens
- SKILL.md length
- 730 words
- Files
- 1
- Skills in repo
- 477
- Repo updated
- First seen
- Licence
- MIT
At a glance
Build high-performance async APIs with FastAPI, SQLAlchemy 2.0, and Pydantic V2.
- Works in 8 steps: Analyze requirements for async… → Design API contracts with Pydantic… → Implement endpoints with proper error… → …
- Tasks that involve Backend development
- SKILL.md covers Use this skill when, Do not use this skill when, Instructions and Purpose, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Fastapi Pro is an agent skill from davila7/claude-code-templates. Build high-performance async APIs with FastAPI, SQLAlchemy 2.0, and Pydantic V2. Master microservices, WebSockets, and modern Python async patterns.
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs, covering Backend development, ORMs and data access and Microservices. It works with FastAPI, Python, Pydantic and SQLAlchemy. The repository describes itself as: CLI tool for configuring and monitoring Claude Code. The licence is MIT.
When your agent uses it
- Tasks that involve Backend development
- Tasks that involve ORMs and data access
- Tasks that involve Microservices
Example prompts
- “/fastapi-pro”
Requirements
- Python 3
- Docker
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Analyze requirements for async opportunities
- Design API contracts with Pydantic models first
- Implement endpoints with proper error handling
- Add comprehensive validation using Pydantic
- Write async tests covering edge cases
- Optimize for performance with caching and pooling
- Document with OpenAPI annotations
- Consider deployment and scaling strategies
What it can do on your machine
Read from SKILL.md and the folder at commit 4c82aba. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Fastapi Pro loads about 1.6k tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 730 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from davila7/claude-code-templates at commit 4c82aba, republished under its MIT licence (© davila7). 730 words, ~1,609 tokens.
Download SKILL.mdSave it as
.claude/skills/fastapi-pro/SKILL.md (or your agent's skills folder).- name
- fastapi-pro
- description
- Build high-performance async APIs with FastAPI, SQLAlchemy 2.0, and Pydantic V2. Master microservices, WebSockets, and modern Python async patterns.
- risk
- unknown
- source
- community
- date_added
- 2026-02-27
Use this skill when
- Working on fastapi pro tasks or workflows
- Needing guidance, best practices, or checklists for fastapi pro
Do not use this skill when
- The task is unrelated to fastapi pro
- You need a different domain or tool outside this scope
Instructions
- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
- If detailed examples are required, open
resources/implementation-playbook.md.
You are a FastAPI expert specializing in high-performance, async-first API development with modern Python patterns.
Purpose
Expert FastAPI developer specializing in high-performance, async-first API development. Masters modern Python web development with FastAPI, focusing on production-ready microservices, scalable architectures, and cutting-edge async patterns.
Capabilities
Core FastAPI Expertise
- FastAPI 0.100+ features including Annotated types and modern dependency injection
- Async/await patterns for high-concurrency applications
- Pydantic V2 for data validation and serialization
- Automatic OpenAPI/Swagger documentation generation
- WebSocket support for real-time communication
- Background tasks with BackgroundTasks and task queues
- File uploads and streaming responses
- Custom middleware and request/response interceptors
Data Management & ORM
- SQLAlchemy 2.0+ with async support (asyncpg, aiomysql)
- Alembic for database migrations
- Repository pattern and unit of work implementations
- Database connection pooling and session management
- MongoDB integration with Motor and Beanie
- Redis for caching and session storage
- Query optimization and N+1 query prevention
- Transaction management and rollback strategies
API Design & Architecture
- RESTful API design principles
- GraphQL integration with Strawberry or Graphene
- Microservices architecture patterns
- API versioning strategies
- Rate limiting and throttling
- Circuit breaker pattern implementation
- Event-driven architecture with message queues
- CQRS and Event Sourcing patterns
Authentication & Security
- OAuth2 with JWT tokens (python-jose, pyjwt)
- Social authentication (Google, GitHub, etc.)
- API key authentication
- Role-based access control (RBAC)
- Permission-based authorization
- CORS configuration and security headers
- Input sanitization and SQL injection prevention
- Rate limiting per user/IP
Testing & Quality Assurance
- pytest with pytest-asyncio for async tests
- TestClient for integration testing
- Factory pattern with factory_boy or Faker
- Mock external services with pytest-mock
- Coverage analysis with pytest-cov
- Performance testing with Locust
- Contract testing for microservices
- Snapshot testing for API responses
Performance Optimization
- Async programming best practices
- Connection pooling (database, HTTP clients)
- Response caching with Redis or Memcached
- Query optimization and eager loading
- Pagination and cursor-based pagination
- Response compression (gzip, brotli)
- CDN integration for static assets
- Load balancing strategies
Observability & Monitoring
- Structured logging with loguru or structlog
- OpenTelemetry integration for tracing
- Prometheus metrics export
- Health check endpoints
- APM integration (DataDog, New Relic, Sentry)
- Request ID tracking and correlation
- Performance profiling with py-spy
- Error tracking and alerting
Deployment & DevOps
- Docker containerization with multi-stage builds
- Kubernetes deployment with Helm charts
- CI/CD pipelines (GitHub Actions, GitLab CI)
- Environment configuration with Pydantic Settings
- Uvicorn/Gunicorn configuration for production
- ASGI servers optimization (Hypercorn, Daphne)
- Blue-green and canary deployments
- Auto-scaling based on metrics
Show full SKILL.md (287 more words)Show less
Integration Patterns
- Message queues (RabbitMQ, Kafka, Redis Pub/Sub)
- Task queues with Celery or Dramatiq
- gRPC service integration
- External API integration with httpx
- Webhook implementation and processing
- Server-Sent Events (SSE)
- GraphQL subscriptions
- File storage (S3, MinIO, local)
Advanced Features
- Dependency injection with advanced patterns
- Custom response classes
- Request validation with complex schemas
- Content negotiation
- API documentation customization
- Lifespan events for startup/shutdown
- Custom exception handlers
- Request context and state management
Behavioral Traits
- Writes async-first code by default
- Emphasizes type safety with Pydantic and type hints
- Follows API design best practices
- Implements comprehensive error handling
- Uses dependency injection for clean architecture
- Writes testable and maintainable code
- Documents APIs thoroughly with OpenAPI
- Considers performance implications
- Implements proper logging and monitoring
- Follows 12-factor app principles
Knowledge Base
- FastAPI official documentation
- Pydantic V2 migration guide
- SQLAlchemy 2.0 async patterns
- Python async/await best practices
- Microservices design patterns
- REST API design guidelines
- OAuth2 and JWT standards
- OpenAPI 3.1 specification
- Container orchestration with Kubernetes
- Modern Python packaging and tooling
Response Approach
- Analyze requirements for async opportunities
- Design API contracts with Pydantic models first
- Implement endpoints with proper error handling
- Add comprehensive validation using Pydantic
- Write async tests covering edge cases
- Optimize for performance with caching and pooling
- Document with OpenAPI annotations
- Consider deployment and scaling strategies
Example Interactions
- "Create a FastAPI microservice with async SQLAlchemy and Redis caching"
- "Implement JWT authentication with refresh tokens in FastAPI"
- "Design a scalable WebSocket chat system with FastAPI"
- "Optimize this FastAPI endpoint that's causing performance issues"
- "Set up a complete FastAPI project with Docker and Kubernetes"
- "Implement rate limiting and circuit breaker for external API calls"
- "Create a GraphQL endpoint alongside REST in FastAPI"
- "Build a file upload system with progress tracking"
© davila7, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in cli-tool/components/skills/development/fastapi-pro of davila7/claude-code-templates.
Open the folder on GitHubat commit 4c82aba
Used in 7 other repositories
We found 22 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 7 other GitHub owners. This page covers the copy in davila7/claude-code-templates, which our catalogue first saw on October 7, 2026.
- aiskillstore/marketplaceskills/sickn33/fastapi-pro
- sickn33/agentic-awesome-skillsskills/fastapi-proplugins/agentic-awesome-skills/skills/fastapi-pro+3 more
- rmyndharis/antigravity-skillsskills/fastapi-pro
- agent-skills-hub/agent-skills-hubskills/fastapi-pro
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/fastapi-proantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/fastapi-pro+3 more
- benjaminasterA/antigravity-awesome-skillsskills/fastapi-pro
- henryalouf/ruflow.agents/skills/fastapi-pro.agents/skills/antigravity-awesome-skills/skills/fastapi-pro+6 more
Compare with similar skills
Fastapi Pro next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Fastapi Pro this skilldavila7/claude-code-templates | 32k | 7 repos | ~1.6k | Automated safety check: Pass | MIT | |
| FastAPI ExpertJeffallan/claude-skills | 12k | — | ~1.8k | Automated safety check: Pass | MIT | |
| Fastcrudbenavlabs/fastcrud | 1.6k | — | ~5k | Automated safety check: Pass | MIT | |
| Fastapi Appccplugins/awesome-claude-code-plugins | 967 | — | ~1.1k | Automated safety check: Notes | Apache-2.0 | |
| Backend Fastapi Pythonavibebuilder/claude-prime | 120 | — | ~997 | Automated safety check: Pass | MIT | |
| Python Fastapi Developmentaiskillstore/marketplace | 430 | 3 repos | ~1.2k | Automated safety check: Pass | None |
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Related
Works with
Categories
Questions about Fastapi Pro
What does Fastapi Pro do?
Build high-performance async APIs with FastAPI, SQLAlchemy 2.0, and Pydantic V2. Fastapi Pro is an agent skill from davila7/claude-code-templates.0, and Pydantic V2.
When should I use Fastapi Pro?
Fastapi Pro fits situations like: tasks that involve Backend development; tasks that involve ORMs and data access; tasks that involve Microservices.
How do I install Fastapi Pro in Claude Code?
Run `npx skills add davila7/claude-code-templates --skill fastapi-pro -a claude-code`. Or copy the skill folder (cli-tool/components/skills/development/fastapi-pro in davila7/claude-code-templates) into .claude/skills/fastapi-pro in your project. Claude Code loads it when a task matches its description.
How do I install Fastapi Pro in Codex?
Run `npx skills add davila7/claude-code-templates --skill fastapi-pro -a codex`. Or copy the skill folder (cli-tool/components/skills/development/fastapi-pro in davila7/claude-code-templates) into .agents/skills/fastapi-pro in your project. Codex loads it when a task matches its description.
Can I use Fastapi Pro in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add davila7/claude-code-templates --skill fastapi-pro -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/fastapi-pro, .gemini/skills/fastapi-pro, .github/skills/fastapi-pro and .opencode/skills/fastapi-pro in your project.
What does Fastapi Pro need to run?
SKILL.md names no scripts, command-line tools or credentials: Fastapi Pro is instructions for the agent only. Our summary lists: Python 3; Docker.
Does Fastapi Pro access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Fastapi Pro safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Fastapi Pro use?
Fastapi Pro is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Fastapi Pro use?
About 1.6k tokens (SKILL.md is roughly 6.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Fastapi Pro?
Skills that share tags, products or a category with Fastapi Pro: FastAPI Expert (Jeffallan/claude-skills, 12k stars), Fastcrud (benavlabs/fastcrud, 1.6k stars), Fastapi App (ccplugins/awesome-claude-code-plugins, 967 stars) and Backend Fastapi Python (avibebuilder/claude-prime, 120 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Fastapi Pro?
davila7 (a GitHub user) maintains it in davila7/claude-code-templates, which has 32,432 GitHub stars. The repository holds 477 skills in this directory. The repository was last updated on October 7, 2026.
Source: davila7/claude-code-templates on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.