What are Cloudflare RFC 9457 error responses?

Cloudflare returns structured Markdown or JSON errors to AI agents instead of HTML, following RFC 9457 for machine-readable problem details like retry instructions and codes.

How much do Cloudflare agent error responses save on tokens?

Up to 98% payload reduction versus HTML, compounding across workflows for massive LLM token savings.

Does this require site owners to enable Cloudflare agent errors?

No — it's automatic across the Cloudflare network; browsers still see HTML.

☁️ Cloud & Infrastructure

Cloudflare Turns Error Pages into AI Agent Playbooks, Slashing Token Waste by 98%

Imagine your AI agent hitting a rate limit and burning thousands of tokens parsing useless HTML. Cloudflare just fixed that, handing agents precise instructions instead—and it's live everywhere.

DevTools Feed Apr 03, 2026 3 min read 15 views

Cloudflare dashboard showing structured JSON error response for AI agents

⚡ Key Takeaways

Cloudflare delivers RFC 9457-compliant Markdown/JSON errors to agents, cutting token use 98%. 𝕏
Agents get actionable instructions like 'wait 30s and backoff' — no more HTML parsing hell. 𝕏
Live now, no config needed; expands to more errors soon, signaling agentic web standards. 𝕏

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Originally reported by Cloudflare Blog

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