LangSmith Observability
LangSmith 可观测性
LLM application observability, testing, and evaluation platform. Trace, monitor, and debug LLM chains and agents in production.
LLM 应用可观测性、测试和评估平台。在生产环境中追踪、监控和调试 LLM 链和智能体。
Website
Documentation
Pricing
free tier, paid from $39/mo
Authentication
- API Key
Popularity
62/100
Endpoints
https://api.smith.langchain.com
SDKs
PythonTypeScript
Tags
observabilitymonitoringllmtracing
Last updated: 2026-08-02
Similar APIs
OpenAI API
★100Access GPT-4o, GPT-4, GPT-3.5, embeddings, DALL-E, Whisper, and TTS models via REST API.
Anthropic Claude API
★87Access Claude 3.5 Sonnet, Haiku, and Opus models for chat, analysis, and code generation.
Google Gemini API
★85Access Gemini 2.0 Flash, Pro, and Ultra models with native multimodal and tool-use support.
DeepSeek API
★83Access DeepSeek-V3 and DeepSeek-R1 reasoning models with competitive pricing.
Something wrong or missing? Open an issue on GitHub →
Pricing Comparison
| API | Pricing | Auth | Popularity |
|---|---|---|---|
| GitHub REST & GraphQL API | free (5000 req/hr for authenticated), unlimited for public repos | Personal Access Token | 92 |
| Bolt.new - AI Web App Builder | free tier, Starter $20/mo, Pro $100/mo (includes Bolt AI credits) | OAuth (GitHub/Google) | 90 |
| Replit AI Agent | free tier, Hacker $25/mo, Pro $200/mo | OAuth (GitHub/Google) | 88 |
| Vercel AI SDK | free (open-source), Vercel hosting additional | API Key (for provider integrations) | 86 |
Get Started with LangSmith Observability
Click below to visit the official website and start using this API.
Visit LangSmith Observability →Discussion
Questions, feedback, or suggestions? Start a discussion.
Discuss on GitHub