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.
FastAPI web framework patterns. An agent skill from aiskillstore/marketplace.
Install Python Fastapi Patterns
$ npx skills add aiskillstore/marketplace --skill python-fastapi-patterns -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace python-fastapi-patterns --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/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/0xdarkmatter/python-fastapi-patterns .claude/skills/python-fastapi-patterns && 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 "python-fastapi-patterns" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/python-fastapi-patterns into .claude/skills/python-fastapi-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-fastapi-patterns", 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/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/python-fastapi-patternsType 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 aiskillstore/marketplace --skill python-fastapi-patterns -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace python-fastapi-patterns --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/0xdarkmatter/python-fastapi-patterns .agents/skills/python-fastapi-patterns && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "python-fastapi-patterns" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/python-fastapi-patterns into .agents/skills/python-fastapi-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-fastapi-patterns", 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 aiskillstore/marketplace --skill python-fastapi-patterns -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace python-fastapi-patterns --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/0xdarkmatter/python-fastapi-patterns .cursor/skills/python-fastapi-patterns && 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 "python-fastapi-patterns" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/python-fastapi-patterns into .cursor/skills/python-fastapi-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-fastapi-patterns", 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/aiskillstore/marketplace.git --path skills/0xdarkmatter/python-fastapi-patterns--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 aiskillstore/marketplace --skill python-fastapi-patterns -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace python-fastapi-patterns --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/0xdarkmatter/python-fastapi-patterns .gemini/skills/python-fastapi-patterns && 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 "python-fastapi-patterns" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/python-fastapi-patterns into .gemini/skills/python-fastapi-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-fastapi-patterns", 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 aiskillstore/marketplace python-fastapi-patternsInstalls 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 aiskillstore/marketplace --skill python-fastapi-patterns -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/0xdarkmatter/python-fastapi-patterns .github/skills/python-fastapi-patterns && 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 "python-fastapi-patterns" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/python-fastapi-patterns into .github/skills/python-fastapi-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-fastapi-patterns", 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 aiskillstore/marketplace --skill python-fastapi-patterns -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace python-fastapi-patterns --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/0xdarkmatter/python-fastapi-patterns .opencode/skills/python-fastapi-patterns && 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 "python-fastapi-patterns" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/python-fastapi-patterns into .opencode/skills/python-fastapi-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "python-fastapi-patterns", 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
python-fastapi-patterns- GitHub stars
- 430
- Used in
- 1 other repo
- Token cost
- ~1.3k tokens
- SKILL.md length
- 115 words
- Files
- 8 (incl. scripts, references, assets)
- Skills in repo
- 1,085
- Repo updated
- First seen
- Licence
- None found
At a glance
FastAPI web framework patterns. An agent skill from aiskillstore/marketplace.
- Dependency injection
- SKILL.md covers Basic Application, Request/Response Models, Path and Query Parameters and Dependency Injection, plus 7 more sections
- Runs Python and Shell scripts from its folder
- Tasks that involve Backend development
What it does
Python Fastapi Patterns is an agent skill from aiskillstore/marketplace. FastAPI web framework patterns. Triggers on: fastapi, api endpoint, dependency injection, pydantic model, openapi, swagger, starlette, async api, rest api, uvicorn.
Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including scripts, reference files and assets (for example `assets/fastapi-template.py`, `references/background-tasks.md` and `references/dependency-injection.md`). Compatibility notes: FastAPI 0.100+, Pydantic v2, Python 3.10+. Requires uvicorn for production.
It sits in Backend & APIs, covering Backend development, OpenAPI specifications and REST APIs. It works with FastAPI, OpenAPI, Python and Pydantic. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Dependency injection
- Tasks that involve Backend development
- Tasks that involve OpenAPI specifications
Example prompts
- “/python-fastapi-patterns”
Requirements
- Python 3
- A Bash shell
- Compatibility (from SKILL.md): FastAPI 0.100+, Pydantic v2, Python 3.10+. Requires uvicorn for production.
- Pre-approved tools (allowed-tools): Read, Write, Bash
What it can do on your machine
Read from SKILL.md and the folder at commit 4ac52da. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteBash
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python and Shell), which the agent can run.
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.
Compatibility
FastAPI 0.100+, Pydantic v2, Python 3.10+. Requires uvicorn for production.
From compatibility in the SKILL.md frontmatter.
Context cost
Python Fastapi Patterns loads about 1.3k tokens when it runs, and up to ~9.4k if it reads all its reference files. Until then it costs about 47 tokens; SKILL.md has 115 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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Write, Bash
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); the scripts in this folder are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 115 words (~1,332 tokens).
“Modern async API development with FastAPI.”
- name
- python-fastapi-patterns
- allowed-tools
- Read, Write, Bash
- compatibility
- FastAPI 0.100+, Pydantic v2, Python 3.10+. Requires uvicorn for production.
- depends-on
- python-typing-patterns, python-async-patterns
- related-skills
- python-database-patterns, python-observability-patterns, python-pytest-patterns
Files
SKILL.md and 7 other files (scripts, references, assets) in skills/0xdarkmatter/python-fastapi-patterns of aiskillstore/marketplace.
- SKILL.md
- assets/fastapi-template.py
- references/background-tasks.md
- references/dependency-injection.md
- references/middleware-patterns.md
- references/validation-serialization.md
- scripts/scaffold-api.sh
- skill-report.json
Open the folder on GitHubat commit 4ac52da
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Python Fastapi Patterns 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 |
|---|---|---|---|---|---|---|
| Python Fastapi Patterns this skillaiskillstore/marketplace | 430 | 1 repos | ~1.3k | Automated safety check: Notes | None | |
| FastAPI ExpertJeffallan/claude-skills | 12k | — | ~1.8k | Automated safety check: Pass | MIT | |
| Fastapi Patternsaffaan-m/ECC | 274k | — | ~2.3k | Automated safety check: Pass | MIT | |
| Fastapi ItechmeatKilo-Org/kilo-marketplace | 189 | — | ~1.5k | Automated safety check: Pass | MIT | |
| Fastcrudbenavlabs/fastcrud | 1.6k | — | ~5k | Automated safety check: Pass | MIT | |
| API Surface Reviewpolarsource/polar | 10k | — | ~1.3k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Python Fastapi Patterns
What does Python Fastapi Patterns do?
FastAPI web framework patterns. An agent skill from aiskillstore/marketplace. Python Fastapi Patterns is an agent skill from aiskillstore/marketplace. FastAPI web framework patterns.
When should I use Python Fastapi Patterns?
Python Fastapi Patterns fits situations like: dependency injection; tasks that involve Backend development; tasks that involve OpenAPI specifications.
How do I install Python Fastapi Patterns in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill python-fastapi-patterns -a claude-code`. Or copy the skill folder (skills/0xdarkmatter/python-fastapi-patterns in aiskillstore/marketplace) into .claude/skills/python-fastapi-patterns in your project. Claude Code loads it when a task matches its description.
How do I install Python Fastapi Patterns in Codex?
Run `npx skills add aiskillstore/marketplace --skill python-fastapi-patterns -a codex`. Or copy the skill folder (skills/0xdarkmatter/python-fastapi-patterns in aiskillstore/marketplace) into .agents/skills/python-fastapi-patterns in your project. Codex loads it when a task matches its description.
Can I use Python Fastapi Patterns 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 aiskillstore/marketplace --skill python-fastapi-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/python-fastapi-patterns, .gemini/skills/python-fastapi-patterns, .github/skills/python-fastapi-patterns and .opencode/skills/python-fastapi-patterns in your project.
What does Python Fastapi Patterns need to run?
Going by SKILL.md and its folder, Python Fastapi Patterns needs Python and a shell for the scripts in its folder. Our summary lists: Python 3; A Bash shell. Its frontmatter pre-approves these tools: Read, Write, Bash. Compatibility (from SKILL.md): FastAPI 0.100+, Pydantic v2, Python 3.10+. Requires uvicorn for production..
Does Python Fastapi Patterns 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 Python Fastapi Patterns safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Python Fastapi Patterns use?
No licence was found for Python Fastapi Patterns or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Python Fastapi Patterns use?
About 1.3k tokens (SKILL.md is roughly 5.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 8.1k tokens, read only when the agent opens those files.
What are the alternatives to Python Fastapi Patterns?
Skills that share tags, products or a category with Python Fastapi Patterns: FastAPI Expert (Jeffallan/claude-skills, 12k stars), Fastapi Patterns (affaan-m/ECC, 274k stars), Fastapi Itechmeat (Kilo-Org/kilo-marketplace, 189 stars) and Fastcrud (benavlabs/fastcrud, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Python Fastapi Patterns?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,085 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.