Agentic Index
Langfuse vs LangWatch (2026)
Langfuse and LangWatch are both open source LLM observability platforms with European roots and honest self host stories: Langfuse's MIT core self hosts free with cloud from a free Hobby tier (fifty thousand units a month) through Core at 29 dollars and Pro at 199, overage at 8 dollars per hundred thousand units, while LangWatch is Apache 2.0, free to self host, with a free cloud tier of two hundred thousand events monthly and paid cloud around 31 dollars per seat plus a dollar per hundred thousand additional events, with on premise and hybrid options for data residency. Langfuse leads on ecosystem adoption; LangWatch counters with a generous free tier and seat based simplicity.
| At a glance | Langfuse | LangWatch |
|---|---|---|
| Category | Agent infrastructure | Agent infrastructure |
| Entry price | Free Hobby (50K units/mo) · Core $29/mo · open source self host | Open source self host free; free cloud (200k events/mo); about $31 (29 euro) per seat plus usage |
| Free / trial | Free Hobby plan, no card (50K units/mo, 2 users) | Apache 2.0 open source free to self host, plus a free cloud tier of 200,000 events a month |
| Pricing confidence | public exact | public exact |
| Feature |
L
Langfuse
|
|
|---|---|---|
| Action & orchestration | ||
|
Integrations & Tool Calling Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools. |
Full / Explicit | Full / Explicit |
|
Workflow Orchestration Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps. |
No / Not documented | No / Not documented |
|
Triggers & Channel Coverage How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools. |
No / Not documented | No / Not documented |
| Knowledge & context | ||
|
Knowledge Grounding & RAG Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers. |
No / Not documented | No / Not documented |
|
Memory & State Persistence Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer. |
No / Not documented | No / Not documented |
| Control & trust | ||
|
Human Oversight & Guardrails Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls. |
Full / Explicit | Partial |
|
Security, Identity & Governance RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy. |
Partial | Partial |
|
Observability & Auditability Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior. |
Full / Explicit | Full / Explicit |
|
Deployment & Data Residency Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting. |
Full / Explicit | Full / Explicit |
| Solution readiness | ||
|
Prebuilt Agents, Templates & Packs Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value. |
No / Not documented | No / Not documented |
| Platform extensibility | ||
|
Model Flexibility & Routing Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys. |
Full / Explicit | Partial |
|
APIs, SDKs & MCP Extensibility Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems. |
Full / Explicit | Full / Explicit |
|
Testing, Debugging & Optimization Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment. |
Full / Explicit | Full / Explicit |
| Specialist automation | ||
|
Browser & Computer Use Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone. |
No / Not documented | No / Not documented |
Pricing snapshot
Sourced from the Index pricing dataset · open each vendor's profile for full detail.
| Pricing |
L
Langfuse
|
|
|---|---|---|
|
Entry price Lowest public entry point |
Free Hobby (50K units/mo) · Core $29/mo · open source self host | Open source self host free; free cloud (200k events/mo); about $31 (29 euro) per seat plus usage |
|
Pricing confidence How public the numbers are |
Public — exact | Public — exact |
|
Billing Primary billing axis |
usage | seats plus events |
|
Variable cost Workload / overage exposure |
Medium variable cost | Medium variable cost |
|
Free tier / trial Try before you buy |
Free tier
|
Free tier
|
|
Buying motion Self-serve vs sales call |
Self-serve | Mixed |
Choose Langfuse if
- The largest integration ecosystem and community derisk your choice.
- Unit based pricing tiers match your organization's usage patterns.
- Prompt management and evals alongside tracing complete your stack.
Choose LangWatch if
- Two hundred thousand free events a month covers your current volume outright.
- Seat based pricing with unlimited lite seats fits your team shape.
- European hosting and hybrid residency options match your compliance needs.