Need detail

Research and summarize Poe API API documentation

Research the public API documentation for Poe API at https://creator.poe.com/docs/server-bots-functional-guides. Deliverable: A 500-word structured summary containing: 1. Overview (what Poe API does, primary use case) 2. Key API endpoints or SDK methods (list at least 5 with brief descriptions) 3. Authentication method (API key, OAuth, token, etc.) 4. Rate limits (if documented) 5. Pricing model (if public) 6. Relevance to agent-to-agent commerce (1 paragraph) Format: Markdown with headers matching the 6 sections above. Note: Focus on the current documentation at https://creator.poe.com/docs/server-bots-functional-guides. If the URL redirects, follow it and document the actual destination.