6 LangFuse Alternatives (2026)

SignalVault

The trust layer for AI applications

SignalVault is an infrastructure layer that sits between your application and AI providers like OpenAI and Anthropic. Every prompt and response flows through SignalVault's proxy, where it's encrypted, scanned for violations, and logged with a complete audit trail. THE PROBLEM Teams ship AI features...

DashClaw

Open-source governance for AI agent fleets

DashClaw provides an open-source control plane for managing and monitoring AI agent fleets. You can record every decision with full reasoning, enforce strict policies before your agents take action, and receive risk signals to prevent incidents. This self-hosted, MIT-licensed solution helps you...

AcruxCore

AcruxCore: Open-Source LLMOps for Engineering Teams

AcruxCore is an open-source LLMOps platform for teams that run AI applications in production. It puts prompt management, an AI gateway, tracing, a tool catalog and evaluation in one platform, so a team does not need a separate product for each job. WHAT YOU CAN DO WITH ACRUXCORE Prompts - Version...

SDI Reckoner

A reasoning computer with a verifiable hash chain

SDI is a protocol and machine that makes AI reasoning an owned, auditable asset instead of exhaust. A Reckoner runs any LLM one governed turn at a time: the model proposes reasoning in a published grammar, a deterministic compile gate checks safety, a work floor, and structural alignment, and each...

SpendLens AI

AI cost optimization for OpenAI and Anthropic

SpendLensAI is FinOps for AI - helping teams understand, control, and optimize their growing AI costs. As companies adopt OpenAI, Anthropic, Gemini and other LLM providers, AI spend can quickly become difficult to track. You know the total bill, but answering what is driving the cost, which...

Farol

Agent observability for indie devs and small teams

AI agents fail silently and bill loudly. Farol tells you first. One decorator monitors your agents automatically - cost anomaly detection, full trace inspector, quality scoring, regression alerts, budget limits per agent, and a weekly digest email every Monday. No gateway. No proxy. No framework...