The whole shelf

Reviews

Tools we actually used, scored by hand. Every one is proof of use, never a press release.

12 reviews, free to read, no card and no gatekeeping.

• LlamaIndex, the shortest path from a client's documents to a query engine
• Ragas, RAG metrics that start fast and need calibrating
• Chroma, a vector store you can start with in one line
• Braintrust, evals and observability in one product
• Helicone, observability you can add by changing a URL
• OpenRouter, one endpoint in front of hundreds of models
• pgvector, vector search inside the database you already run
• Promptfoo, the eval harness you can put in CI on day one
• Langfuse, traces you can keep inside the client's network
• Claude Agent SDK, the agent harness without writing the loop
• LiteLLM, one API shape in front of a hundred models
• LangGraph, state machines for agents that run longer than a request