Alternatives to OnWatch

Open-source OpenTelemetry tracing, versioning, and sessions for Python LLM apps—bring your own backend.

Zero-config local dashboard that shows what your OpenClaw agents actually did, what they cost, and whether they leaked secrets

Open-source LLM observability: trace agents, manage prompts, and run evals on one MIT-licensed platform.

Open-source LLM observability and agent evaluation you can trace, self-host, and eval end to end.

Open source AI engineering platform for agent and LLM tracing, evaluation, prompt management, and ML lifecycle work.

Maxim AI simulates, evaluates and observes AI agents — with Bifrost, its open-source LLM gateway, for routing and guardrails.

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

Laminar delivers open-source AI agent observability that auto-captures every LLM and tool call and surfaces failures with Signals.

Track AI spend across OpenAI, Anthropic, Google AI, Bedrock and Azure in one live cost dashboard.

Open-source Python framework that traces every AI agent span and scores runs with benchmarked, explainable LLM judges.

Open-source Python library that turns vibe checks into reproducible evaluation loops for RAG pipelines and AI agents.

Edgee Team token observability puts every coding agent on a budget you set, with per-repo and per-PR attribution.

Local, MIT-licensed token usage and cost tracking for AI coding agents — reads the logs your agents already write.

Token Monitor tracks AI coding token usage, cost, and quota limits across 44+ tools in one free desktop widget.

OpenCode Bar tracks AI coding quota windows, spend, and burn pace from your macOS menu bar

Burntop is a FastAPI, React 19 and Postgres full-stack template that keeps coding agents honest with 200+ end-to-end tests.

OpenJudge is an Apache 2.0 open-source AI evaluation framework shipping 50+ benchmark-validated graders for agents, LLMs, code, math, and multimodal models.

Helicone is an AI gateway and LLM observability platform that routes, caches, and logs traffic across 100+ model providers.

Fiddler AI is an enterprise control plane for agent observability, inline guardrails, and auditable AI governance.

Conan is a native macOS HUD for Claude Code that streams every prompt, tool call, skill and token live as the session runs.

OpenLIT delivers OpenTelemetry-native LLM tracing, evals, guardrails, and prompt management you self-host free under Apache 2.0.

Agnost AI monitors production AI agents, clusters silent failures, and opens a fix for review.

OpenCompass (司南) benchmarks LLMs, VLMs, and AI4S models on dated, dimension-by-dimension leaderboards

OpenAI's December 2025 wet-lab evaluation where GPT-5 improved a real molecular cloning protocol 79-fold

AI cost tracking that turns 50+ provider billing files into one normalized spend dashboard.

Open-source PyTorch toolkit for feature attribution in sequence generation models

LangWatch is an open-source LLMOps platform for agent testing, LLM evaluation and OpenTelemetry-native LLM observability.

Comet's Opik brings LLM observability and evaluation that turns agent traces into code fixes

AI quality workspace for LLM evaluation, production observability, red teaming, and governance

Braintrust traces agent runs, scores them with evals, and surfaces production failure patterns before they ship.