
AgentoolRank· Open-source AI agent tools directory
Open-source AI agent tools ranked by GitHub activity
Developer Tools·AI & Machine Learning
What is AgentoolRank?
AgentoolRank is an open-source AI agent tools directory.
AgentoolRank is a free directory of 669 open-source AI agent tools, built by Ethan Tan. You can browse agent frameworks, coding agents, MCP servers, RAG and memory tools, evaluation and observability tools, browser agents and voice agents.
Rankings use recent GitHub activity rather than total stars: 30-day star growth, commits in the last 90 days, releases in the last 6 months and issue response time. Data refreshes daily from the GitHub API, giving you recent maintenance signals to check when choosing a tool.
Every tool has its own stats page, an alternatives page and side-by-side comparisons. Access is free, with no signup. If you make an open-source AI agent tool, you can submit it for free queued review or choose $9, $19 or $49 options for faster review or featured placement.
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we did not apply it to our existing customer base they were grandfathered in if they reached out to us we honored the old price effectively indefinitely
Grandfather existing customers when raising prices
When Skylight doubled its subscription price from $39 to $79, it applied the new price only to new customers. Existing subscribers were grandfathered into Legacy Plus with no change, and anyone on the fence could email for the old price indefinitely. This preserved goodwill and sacrificed only a few million in theoretical revenue uplift. When raising prices, protect long-term brand equity rather than trying to extract maximum short-term revenue from the existing base.
There's a like a really clear zeitgeist right now the anti-slop zeitgeist and people wanting to use things whether it's in the physical world or digital world that are high quality and thoughtful and doubling down on product and design.
The Anti-Slop Zeitgeist: Design Quality Will Rise As AI Lowers The Floor
Jeff's contrarian take on AI-driven app creation: the bar for design won't fall, it will rise. As AI-generated slop floods the market, users will gravitate toward products with intentional design and distinctive point of view. This creates an opportunity for founders who double down on craft — the same dynamic that made Flighty worth $40/year despite free alternatives.
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