Alternatives to Raindrop

Agent and LLM observability from the LangChain team: trace, monitor, and evaluate agents in production, cloud, BYOC, or self-hosted.

Open-source LLM observability, prompt management, and evaluation for teams running AI agents in production.

Opik, Comet's open-source LLM observability and eval platform, turns agent traces into root-cause groupings and git-committed code fixes

AI observability and eval engineering platform that turns offline evals into live production guardrails for agents and RAG systems.

Metoro is a Kubernetes-native observability platform whose eBPF collector feeds an AI SRE agent that detects, root-causes, and opens fix pull requests for

Open-source, OpenTelemetry-native observability for AI agents that catches failures automatically and helps you fix them.

Trace, evaluate, and iterate AI agents with Phoenix — open-source LLM observability you can self-host.

Maxim AI simulates, evaluates, and observes AI agents in one workspace, with an open-source gateway (Bifrost) for routing and governance.

Agent observability that traces every AI run, scores quality with evals, and surfaces production patterns you didn't know to look for.

Local, MIT-licensed token and cost observability for AI coding agents — no SDK, no signup, nothing leaves your machine.

OpenJudge is an open-source AI evaluation framework with 50+ production-grade graders for agents, multimodal models, code, and math.

Arize Phoenix is open-source LLM observability: trace every agent step, run evals, and self-host the whole thing.

OpenTelemetry-native observability with an AI SRE that investigates incidents and opens fix PRs.

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

Fiddler AI is an enterprise AI control plane for agent observability, guardrails, and governance across the agentic lifecycle.

Open-source workspace for building, evaluating, and deploying AI agents you talk to in Slack, Telegram, or a browser chat

Open-source Python framework that replaces vibe checks with reproducible evaluation loops for RAG pipelines and AI agents.

Open-source Python framework for evaluating and monitoring LLMs, RAG apps, AI agents, and predictive ML models.

TruEra brings ML monitoring, testing, and AI quality management into Snowflake for production model observability.

Developer observability platform that traces, replays, and debugs AI agent runs across OpenAI, CrewAI, Autogen and 400+ LLMs

Open-source LLM observability, prompt management, and agent evals in one MIT-licensed platform.

Voice AI QA and evals: simulate callers before launch, then score every production call on 500+ audio-native metrics.

Open-source observability and self-repair for AI agents, turning production failures into validated, reusable rules.

Silico is Goodfire's interpretability agent for understanding, debugging, and controlling the internals of your AI models

Open-source, OpenTelemetry-native evaluation and tracing that shows exactly where your AI agent fails — and where you can cut cost.

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

Collaborative AI development platform for prompt management, dataset evaluation, and production LLM monitoring.

Open-source agent tracing, LLM-as-a-judge evals, and coding-agent cost tracking you can self-host.

Pre-trained finance AI models and API infrastructure for banks, insurers, and lenders, moving into agentic workflow orchestration.

Helicone is an AI gateway and LLM observability platform that routes, logs, and cost-tracks AI app traffic across 100+ models.