· 5 min read
How to Migrate from Langfuse to Zespan (2026 Guide)
A step-by-step migration guide from Langfuse to Zespan: what maps across cleanly, what changes in the data model, how to run both in parallel, and what the ClickHouse acquisition means for self-hosted teams.
· 5 min read
How to Migrate from LangSmith to Zespan (2026 Guide)
A step-by-step migration guide from LangSmith to Zespan: decoupling from LangChain-specific tracing, what per-seat pricing actually costs at team scale, running both in parallel, and cutting over safely.
· 5 min read
How to Migrate from Maxim AI to Zespan (2026 Guide)
A step-by-step migration guide from Maxim AI to Zespan: moving from a simulation-and-eval workflow to production-first observability, what per-user pricing costs at scale, and how to cut over without losing your eval coverage.
· 11 min read
5 Best Langfuse Alternatives in 2026 (Ranked & Compared)
Langfuse self-hosting costs $200–800/mo in ClickHouse infra and has no built-in evals. We ranked the top 5 alternatives on pricing, agent support, and eval capabilities — with a clear winner for agent teams.
· 15 min read
Best AI Agent Observability Tools in 2026: Zespan vs Langfuse vs LangSmith vs Helicone
The top AI agent observability tools compared: Zespan, Langfuse, LangSmith, and Helicone. Feature tables, pricing, and how to pick the right tool.
· 14 min read
Helicone Alternatives in 2026: Best Options for AI Agent Observability
Top Helicone alternatives for AI agent observability in 2026. Agent support, eval capabilities, pricing, and proxy-free architectures compared.
· 9 min read
Google ADK Observability: Monitor Gemini Agents in Production
Monitor Google ADK agents in production: delegation traces, Gemini model cost attribution, built-in evals. Zespan auto-patches Gemini API in two lines.
· 10 min read
CrewAI Observability: How to Monitor Crews in Production
Full observability for CrewAI crews in production: traces per agent, delegation visibility, cost per task, and eval templates. 3-line setup with Zespan.
· 10 min read
How to Monitor OpenAI Agents SDK in Production (2026 Guide)
Monitor OpenAI Agents SDK in production with Zespan: agentic traces, multi-agent handoff spans, cost alerts, and ZespanPilot. Auto-instrumented, no config.
· 8 min read
LangSmith Alternatives in 2026: Observability Tools for Teams Beyond LangChain
Evaluating LangSmith alternatives for AI agent observability? We compare Zespan, Langfuse, Helicone, and Braintrust on features, pricing, and multi-framework support.
· 10 min read
LangSmith vs Langfuse vs Zespan: Which Agent Observability Tool Is Right for You?
A direct comparison of LangSmith, Langfuse, and Zespan for AI agent observability in 2026. Features, pricing, setup time, and which tool wins for production agent teams.
· 8 min read
How to Monitor LangChain Agents in Production (2026 Guide)
Monitor LangChain agents in production with Zespan: agentic traces, delegation spans, cost alerts, and ZespanPilot. One callback handler to start.
· 8 min read
What is AI Agent Observability? A Practical Guide for Engineering Teams
AI agent observability is not LLM monitoring. This guide explains the difference, what agent observability actually covers, and what to look for in a tool.