Public chat allows 30 requests per 60 seconds per visitor (policy widget-chat). The Docs API and workspace MCP server allow 120 calls a minute per key or connection, and 30 tasks an hour. The free SEO tools have their own hourly limits. Responses include RFC 9237 RateLimit and RateLimit-Policy headers, and HTTP 429 also sends Retry-After. Honor those headers instead of guessing a backoff.