Alternatives to Token Monitor

Free open-source AI usage tracking & analytics for developers

Free local observability for AI coding agents — tokens, cost & traces on your machine.

Free, open-source AI observability and evals for debugging agents

Real-time AI cost tracking and budget management across providers.

Open-source LLM agent observability with tracing, evals, and experiments

Open-source AI agent tracing and LLM-as-judge evaluation platform for debugging and improving agent quality.

Open-source LLM observability for tracing, evaluating, and optimizing AI agents end-to-end.

Open-source OpenTelemetry observability for Python LLM apps

OpenTelemetry-native open-source AI agent evaluation and tracing

Open source platform to debug, evaluate, monitor, and optimize AI agents and ML models.

Open-source AI observability for privacy-preserving logging and LLM security

Open-source workspace to build, evaluate, and deploy AI agents through chat

PostHog is an open-source product OS that unifies analytics, session replay, feature flags, and a data warehouse in one platform.

Open-source framework to replace vibe checks with reproducible, LLM-driven evaluation loops for RAG and agents.

Open-source AI evaluation and observability for LLMs, RAG, agents, and predictive ML.

Real-time experiment tracking for frontier AI training, now owned by OpenAI

Open-source LLM & VLM evaluation platform for standardized benchmarking

Open-source LLM observability and prompt management for AI engineering teams.

Open-source, OpenTelemetry-native LLM observability and AI engineering platform for teams.

Open-source Python library to track the real-time carbon footprint of your GenAI API calls.

ML experiment tracking and LLM development platform for teams

OpenTelemetry-native observability with AI SRE Agent0 for automated production insight.

Track, forecast, and optimize AI spend across providers.

Upload your data, compare 50+ LLMs side by side on quality, cost & speed.

Daily-updated LLM speed benchmarks measuring TTFT, TPS, and total time across regions.

Pre-built AI models for finance, from fraud detection to agentic workflow orchestration.

Mechanistic interpretability platform to understand, debug, and design AI models

AI agent observability and evaluation platform for LLM apps

AI observability and eval engineering platform that turns offline evals into production guardrails.

AI observability and evals that auto-fix agent code via git