1.BerriAI / litellmThe fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]anthropiclangchainllmllmopsopenaiai-gateway+10 morePythonOther license63K total13K forks+469 starsfrom 62,030 · score 6.15
2.future-agi / future-agiOpen-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Guardrails. Self-hostable. Apache 2.0.ai-gatewayobservabilitysimulationai-agentsai-evalsevaluation-framework+14 morePythonAPACHE-2.02.2K total705 forks+37 starsfrom 2,200 · score 3.64
3.securetron-gh / aifwAI Agent Identity and Access Management and Inference Firewallagent-identityai-auditai-firewallai-gatewayai-governanceai-security+4 morePythonNo license454 total3 forks+13 starsfrom 441 · score 2.64