FastAPI
How vibe coders and indie builders use FastAPI: 312 projects built with it and 5 built for it since May 2026.
Projects built with it
312
Share of stated stacks, 4 wks
1.5%
Last 4 weeks vs 8 before
▼ -30%
Add-ons built for it
5
Share of stated stacks, per week
Share rather than counts, so changes in how many posts a subreddit lets through don't show up as trends.
Often used with
- Python 132
- PostgreSQL 101
- React 86
- Next.js 72
- Docker 43
- SQLite 40
- Vercel 38
- Claude API 37
What's built with it
Latest projects built with FastAPI
- DeepTrade — Lets a user chat with a Telegram bot that researches stocks, drafts Upstox orders, and places them only after manual confirmation.“I spent 2 weeks fighting the Upstox API so I could talk to my broker on Telegram - open-sourced the whole thing”
- StatusNest — Monitors website uptime with automatic checks and detects incidents, served as a self-hosted backend.“I built an uptime monitor from scratch”
- Python Automation Starter Kits — Packages reusable Python boilerplate for scrapers, Telegram bots, Tkinter UIs, FastAPI scraping APIs and RSS broadcasting into starter kits sold as a bundle.“I built a suite of 5 production-ready Python automation starter kits (Web Scraping, Telegram Bots, FastAPI REST, Tkinter UI)”
- CivicLens AI — Answers plain-English questions about a city's adopted budget using retrieved passages from that city's official budget book, with page citations.“I built CivicLens AI — ask a city’s official budget book questions in plain English”
- AI SupportPro — Answers customer support chats from company documents using retrieval and hands refund or complaint cases to human support tickets.“I built an open-source, multi-tenant AI Customer Support SaaS with grounded RAG and automatic ticket escalation (FastAPI + React 19)”
- MILkMoney — Records public stock calls when published, timestamps them, and measures each against SPY after 20 trading sessions without later edits.“I built a stock research engine that can't hide its losses: every call is timestamped and measured against SPY after 20 sessions”
- mykundli — Generates Vedic astrology birth charts and dasha timelines and connects users with a human astrologer who answers questions in a chat.“kept getting free chart reading requests, so i built a free site for it”
- Lire — Finds manga series by name, searches torrent indexers for volumes, picks the smallest set of releases covering missing volumes, and sends them to qBittorrent and a Kavita library.“I got tired of reading torrent titles to complete manga series, so I built a Sonarr for manga volumes”
- Vex (Vex's Skillgit) — Ingests code repositories into versioned, AST-chunked context that AI agents query in real time over MCP.“I built a background skill manager that treats agent memory like Git (AST-aware, MCP-ready, potato-PC friendly).”
- Calorie Dintis — Estimates meal macros and calories from a photo and logs them to a daily diary with goals adjusted for activity.“I’m 14, I bench 115kg, and I pull all-nighters to build an AI Calorie Tracker on FastAPI.”
- Project Manager — Manages tasks and projects for small teams with list, board, calendar and Gantt views, recurring tasks, and an offline-capable desktop app.“I built a self-hosted project manager for small teams, with list, board and Gantt views plus an offline desktop app (open source)”
- ReviewMind — Reviews code against a team's stored coding conventions and remembers accepted feedback for future reviews.“ReviewMind -A Code Review Agent”
- pre-mortem — Reviews a pending company decision against recorded past decisions and their outcomes, flagging comparable ones that went badly and citing their IDs, or refusing when no precedent exists.“I built a memory-backed reviewer that tells you what your own company already got wrong”
- Extended Mind — Saves book and article highlights from any app or browser and lets you search, filter, and map them by country and year.“I built a personal app for saving and exploring highlights from books and articles”
- ForexRecap — Syncs OANDA trade history automatically and reports win rate, average win and loss, breakeven win rate, P/L by session, instrument and day of week, and open risk.“Built a free trading journal that auto-syncs with OANDA — no spreadsheets, no CSV exports”
Latest add-ons built for FastAPI
- codeTAC — Traces a UI action back to the components, server functions, database calls and external services behind it.“I built codeTAC to help me understand AI-generated code instead of treating it like a black box”
- meshd — Turns FastAPI servers into a peer-to-peer mesh that shares and persists data across instances without any central or external service.“Distributed FastAPI servers mesh”
- DocuPoints — Generates API documentation by scanning project source code for endpoints, request and response shapes, and middleware, without annotations.“I built a tool that scans your codebase and generates API docs automatically – no annotations needed”
- Pingoni — Monitors API logs, errors, response times and sends email alerts via an SDK.“Built Pingoni — lightweight API monitoring for solo devs and small teams (would love brutal feedback)”
- Adiuvare — Scores incoming API requests for risk by combining payload, behavior, identity, and context signals.“Built an open source adaptive request-security layer for Python APIs (FastAPI / Flask / Django)”
Pitched as alternatives to FastAPI
- DataMan — Generates REST API endpoints with CRUD, filtering, pagination, token auth and OpenAPI docs from Django models via a CLI.“I built DataMan: A headless backend engine that builds REST APIs from CLI in 4 commands”
- ToolRampart — Sits between AI agents and their tool calls, enforcing validation, scopes, policies, approvals, rate limits, idempotency, and audit logging.“I was scared of AI agents touching production, so I built a “permission layer” for them”