CrewAI
How vibe coders and indie builders use CrewAI: 9 projects built with it and 9 built for it since May 2026.
Projects built with it
9
Share of stated stacks, 4 wks
0.1%
Last 4 weeks vs 8 before
too few to tell
Add-ons built for it
9
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
- LangChain 6
- Python 2
- Claude API 2
- OpenAI API 2
- LangGraph 2
- n8n 1
- Cursor 1
- TypeScript 1
What's built with it
Latest projects built with CrewAI
- Typed Evals — Evaluates LLM responses, RAG pipelines, and AI agent traces using typed judge models, and calibrates scores against human pass/fail labels.“Can we use Jev for AI evaluation?”
- Maximem Synap — Gives AI agents persistent memory across sessions, storing user preferences and extracted entities so they stop forgetting context.“AI agents forget everything so I built a memory SDK to fix that - Maximem Synap”
- Unified AI — Sits between AI agents and their tools as a proxy that checks each action against policies and returns allow, deny, or ask-a-human before it executes.“How do you stop an AI agent from doing something it shouldn't before it does it? We're building one approach and want it picked apart”
- I built an AI Agent marketplace — Lists AI agents with built-in skills, tools and instructions so buyers can use them and sellers earn a markup on token usage.“I built an AI Agent marketplace? Looking for feedback”
- Outcap — Proxies LLM API calls to learn response lengths, caps output tokens per route, and enforces spending budgets.“I built a "circuit breaker" for LLM bills — it learns your response lengths and caps the waste. Free beta, roast me.”
- mcp-trace-demo — Traces LLM agent calls to MCP tools over stdio, linking agent and tool-server spans under one trace ID and exporting them to Jaeger.“[Project] Distributed tracing for MCP tool calls over stdio (CrewAI + Ollama + OpenTelemetry → Jaeger)”
- Launched Product 2 of my AI… — Documents step-by-step commands for setting up a local multi-node server running 14 scheduled AI agents.“Launched Product 2 of my AI company build series, complete hardware and software setup guide”
- ProspectAI — Generates stock trading strategies for sectors by running multiple AI agents over sentiment, technical and fundamental data.“I built an open-source 6-agent AI pipeline that picks stocks autonomously — here’s what it output today”
- TinyFish Search and Fetch — Provides web search returning structured JSON results and a fetch endpoint that returns rendered page content as Markdown or JSON.“We just made WEB Search and Fetch completely free”
Latest add-ons built for CrewAI
- Sulcus — Provides a single dashboard for monitoring AI agent runs, tool calls, LLM activity, errors and resource usage, with planned permissions, approvals and limits.“We built a control layer for AI agents — looking for people to break it”
- kafka-agent-bridge — Connects LangGraph or CrewAI agents to Kafka topics, handling consumption, retries, idempotency, dead-letter queues, and result routing.“I built a bridge to connect LangGraph/CrewAI agents directly to Kafka”
- OpenBox.ai — Enforces external governance controls on AI agents, including action permissions, human approval gates, behavioural rules, and auditable action logs.“We’re building a governance layer for AI agents. Do SaaS teams actually need this?”
- SafeAI — Statically analyzes AI agent codebases for prompts, tool permissions, autonomy, memory and governance risks.“New OSS project: SafeAI — Static AI Capability & Risk Analyzer”
- Loopers — Proxies AI agent API calls on bare metal to stop runaway agents from exceeding AWS spending budgets.“Launched my open-source project 4 weeks ago. Got around 3,000 installations.”
- sponsio — Enforces declared YAML rules deterministically at the tool-call boundary before agent actions commit.“I got tired of re-tuning prompts every time I swapped LLMs. Built an open-source layer that enforces agent rules deterministically.”
- ORKA — Enforces policy checks, human approvals, and an immutable audit trail over actions taken by AI agents.“I built a governance layer for AI agents every action is policy-checked before execution”
- vouch — Searches a user-chosen list of trusted websites by routing each query to the most relevant sites and caching their search selectors for fast replays.“vouch: open-source curated AI search for agents (BYOK + self-hosted)”
- Relay — Passes context between AI agents as an immutable ledger of bounded slices instead of a shared mutable blob.“We treated LLM context like a mutable blob for too long. Relay v0.3 fixes this with Bounded ContextSlices.”
Pitched as alternatives to CrewAI
- JEVULON VII — Coordinates multiple coding agents with fast routing decisions and file locking to prevent overwrites.“Why LLM supervisors are an architectural bottleneck, and how System-1 │ routing makes agent swarms 30x faster”
- Calfkit — Lets developers build and deploy AI agents and tools as decoupled, event-driven services that communicate over Kafka topics.“Calfkit - an open-source SDK to build distributed, event-driven agents that discover and message each other over the network”
- Obelix — Provides an async agent framework where agents call other agents over A2A and deploy as servers via a factory, optionally sandboxed behind NVIDIA OpenShell.“First async A2A framework, needs someone who cares.”