PASAR API
LLM observability and evaluation platform for tracing, testing and debugging AI agent applications. REST API at api.smith.langchain.com. Free Developer: 5k traces/month.
View docs ↗ More Backend & devtools APIs# LangSmith LLM Observability & Evals needs an API key. # No single public base URL ~ start from the docs: # https://docs.langchain.com/langsmith
I'm integrating a Malaysia API into my app. API: LangSmith LLM Observability & Evals Provider: LangChain Auth: requires an API key (sign up: https://docs.langchain.com/langsmith) Pricing: freemium Important note: LLM observability and evaluation platform for tracing, testing and debugging AI agent applications. REST API at api.smith.langchain.com. Free Developer: 5k traces/month. Source: LangChain (https://docs.langchain.com/langsmith) Source type: Provider API or developer docs Endpoint type: Docs-first integration Integration difficulty: Needs API key Last checked: 2026-06-15 Production caveat: Keep credentials server-side and confirm current limits, pricing, and webhook/error behaviour in the provider docs. Help me set up the correct onboarding/authentication path and make the first valid request ~ explain exactly where credentials go and what must happen before production.