A developer platform for tracing, evaluating, and improving LLM applications.
Rating
Save
LangSmith fits the developer tools category because it helps teams inspect prompts, trace agent behavior, and tighten reliability before shipping.
This entry was added as a published seed so the directory can keep deepening research and developer workflows.
Official website status
langchain.com
Linked to the official site at langchain.com, so you can verify pricing and features there.
Recent update
Jun 9, 2026
Recently refreshed and worth shortlisting early.
Pricing snapshot
Paid
A better fit when you already know the use case and need dependable access.
Best fit
Less ideal for
Verify before choosing
Compare pricing, workflow fit, and topic overlap before you commit to one option.
Current category
Developer Tools
Pricing model
Paid
Topic overlap
API, LLM, Developer Tools
A unified API layer for accessing multiple AI models through one developer-friendly endpoint.
A vector database platform used to power retrieval, memory, and production AI search workflows.
A platform for running and integrating machine learning models through APIs and hosted infrastructure.
Join the discussion and follow updates
Save this tool, share it with your team, and leave your review.