HTTP 429 Too Many Requests / Token Quota Exhaustion

Provider RPM/ITPM/OTPM tier limit reached due to uncached long context prompts or burst concurrency.

1. Immediate Code & SKU Fix

Replace With SKU: prompt-caching + openrouter / google-ai fallback

Install Command: npm install @google/genai

Required Env Vars: ANTHROPIC_API_KEY, GEMINI_API_KEY, OPENROUTER_API_KEY

// 1. Add cache_control: { type: 'ephemeral' } to system/tool blocks (cuts Anthropic ITPM by ~90%)
// 2. On HTTP 429, fail over to runner-up Google AI (gemini-2.5-pro) or OpenRouter

2. Verified Hot-Swap Fallback Route

JTBD: coding-agent

Primary: anthropic → Fallback: openai

liveHealth: operational · autoActOk: true

Compliance blocks Anthropic

GET /api/rescue JSON (<2 KB)Falsify Pick (/api/falsify)

Matched Error String Signatures (7)

429429 too many requestsrate_limit_exceededrate limitresourceexhaustedquota exceededtokens per minute

curl -s "https://getagentdepot.com/api/rescue?q=429"

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