LangSmith alternatives
Curated alternatives to LangSmith — and why you'd switch.
future-agi
Self-hostable platform for the whole agent-quality loop: tracing, evals, simulations, datasets, guardrails and an LLM gateway — one feedback loop from prototype to production. Apache 2.0.
Why switchSame job — trace, test and monitor LLM apps. LangSmith is the polished hosted incumbent tied to the LangChain orbit; Future AGI is the Apache-2.0 self-hostable that adds simulation and guardrails.
Full comparison →Tracely-ai
Trace-native CI/CD for agents: OTLP traces are graded on arrival, failures cluster into issues, and one click freezes a failing run into a hermetic regression case that blocks the PR.
Why switchThe same trace-to-test loop, different ownership. LangSmith is the hosted incumbent for tracing, testing and monitoring; Tracely is MIT and self-hosted end to end, and pushes past the dashboard — a regression does not move a chart, it blocks the pull request.
Full comparison →agentsight
System-level observability for AI agents via eBPF and TLS tracing: correlates prompts and model calls with the processes, files and network the agent actually touched — no SDK, no proxy.
Why switchAgentSight's own framing: LangSmith is right when you own the application code and want traces, prompts and evals; AgentSight is for the layer below — a closed agent CLI whose real effects (processes, files, network) only show up at the system boundary.
Full comparison →