DeepSeek shipped standalone Search (`POST /v1/tools/search`) and Fetch (`POST /v1/tools/fetch` → Markdown) APIs for agents/RAG: $0.75 per 1,000 successful requests each (empty/failed free); Claude Code built-in Web Search and Codex `web_search` waive Search fees for the first two weeks after launch, then standard pricing—docs live under Search & Fetch on api-docs.deepseek.com.
Market Logic (Oct 7) generally available DeepSights MCP so enterprise assistants and custom agents pull curated, permissioned market research with citations instead of generic LLM guesses. Same open MCP layer serves Microsoft Copilot, ChatGPT, Claude, Glean, and custom agents; DeepSights ACLs carry through. Aimed at consumer/category/competitor questions and multi-step workflows that need an insights expert before other agents act.