The Agent Framework Moment: Why Flue and Eve Look so Much Alike
Blog post from Firecrawl
In May and June of 2026, two similar open-source agent frameworks, Flue and Eve, were launched by Cloudflare's Astro team and Vercel respectively, marking a significant step in the development of AI agents. Both frameworks allow developers to create AI agents declaratively using Markdown and TypeScript, with durable execution, sandboxes, and channels, signifying a convergence in the approach to building AI agents. Flue, which evolved from Astro's internal workflows, is multi-cloud and uses the Pi harness, while Eve is built on Vercel's stack and centers on a directory-based approach. Despite their similarities, neither framework includes native support for live web data, which requires an external tool like Firecrawl to access real-time information. The emergence of these frameworks suggests that AI agents are entering a framework era, similar to the web's evolution with tools like Next.js, with Cloudflare and Vercel leading the charge in shaping this new landscape.
| Trend | Post Mentions | Total Month Mentions | Posts | Companies | MoM |
|---|---|---|---|---|---|
| AI Agents | 13 | 7,292 | 1,580 | 285 | +10% |
| MCP | 4 | 10,927 | 960 | 225 | -18% |
| OpenClaw | 3 | 440 | 72 | 33 | +4% |
| Subagents | 3 | 350 | 107 | 61 | +39% |
| Multi-agent systems | 2 | 620 | 208 | 87 | -4% |
| AI Coding Assistant | 1 | 2,472 | 654 | 180 | +5% |
| Developer Experience | 1 | 451 | 268 | 105 | -29% |
| Observability | 1 | 4,489 | 863 | 207 | +9% |
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