What are the most powerful underground AI tools that no one talks about enough?

Most powerful AI/agent tools nobody talks about, and it leaves you behind IMO 1. Instructor define a Pydantic model, get clean structured JSON out of any LLM every time → https://github.com/567-labs/instructor 2. Octopoda gives any AI agent persistent memory and catches it when it loops and quietly burns your tokens. open source → https://www.octopodas.com 3. E2B secure cloud sandboxes so your agent can actually run the code it writes without nuking your machine → https://e2b.dev 4. Firecrawl turn any website into clean, LLM-ready markdown in one API call → https://firecrawl.dev 5. Composio plug your agent into 1000+ apps (Gmail, Slack, GitHub) with the auth handled for you → https://composio.dev 6. LiteLLM one API for 100+ models across OpenAI, Anthropic and local, swap without rewriting a line → https://github.com/BerriAI/litellm what are yours, let me know and I will add it to the list next month! submitted by /u/DetectiveMindless652 [link] [留言]