toolgrep / Monitoring & observability / LangWatch
Alternatives to LangWatch
LangWatch: Agent observability and evals platform for tracing, testing, routing and governing LLM calls. 8 products similar to LangWatch, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 7 of 8 offer an MCP server, 4 of 8 are open source.
- Langfuse
Open Source Agent Evals & Observability
- telemetry.dev
LLM observability for AI agents, built on OpenTelemetry
- Respan
The AI router with built-in observability & automated evals.
- Latitude
Open-source AI agent observability and monitoring platform
- Braintrust
The active observability platform for agents
- Opik
End-to-end AI observability and evaluation platform for LLM applications and agents
- Checkly
The active reliability layer for developers & agents
- Arize AI
Agent observability, evaluation & improvement platform
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| LangWatch | Freemium | yes | yes | yes | yes | yes |
| Langfuse | Freemium | yes | yes | yes | yes | yes |
| telemetry.dev | Freemium | yes | yes | no | yes | no |
| Respan | Freemium | yes | yes | yes | yes | — |
| Latitude | Freemium | yes | yes | yes | yes | yes |
| Braintrust | Freemium · from $0 | yes | yes | yes | yes | no |
| Opik | Freemium | yes | yes | yes | yes | yes |
| Checkly | Freemium | yes | yes | yes | yes | no |
| Arize AI | Freemium | yes | yes | yes | yes | yes |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/langwatch/alternatives