Langfuse
Langfuse is an open-source (MIT-licensed) agent evaluation and observability platform offering tracing, evals and prompt management, self-hostable via Docker Compose, Kubernetes or Terraform on AWS/GCP/Azure. It reports use by 21 of the Fortune 50 and 100,000+ engineers, processes 10+ billion observations per month, and lists SOC 2 Type II, ISO 27001 and GDPR under security and compliance.
Trust gap
How this is scoredAre scope, spend, and authority enforced while the agent runs?
No public evidence of enforced run-time limits. The page checked describes cost and latency monitoring with automated alerts, which is observation and alerting rather than enforcement of scope, spend or authority.
How this gap gets closed →Is there a tamper-evident record of what it actually did?
Hierarchical traces capture every LLM call, tool invocation and retrieval step, filterable by user, session, cost and latency, giving a reviewable record. The page checked does not claim the record is tamper-evident or hash-chained, so it falls short of 3.
Are compliance obligations attached per engagement?
The page checked lists SOC 2 Type II and ISO 27001 under security and compliance, so certification is published. No per-engagement compliance schedules are described, so it falls short of 3.
Does payment depend on a verified result?
No public evidence found. Pricing on the page checked is a free tier of 50k observations per month, i.e. metered by usage rather than released on a verified outcome.
How this gap gets closed →Can the deployment be insured, and is the customer indemnified?
No public evidence found on the page checked. No carrier, cover, limits or customer indemnity are named.
How this gap gets closed →Assurance
- Insurance available
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Insurance carriers
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Coverage limits
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Indemnification
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Liability cap
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Audit trail
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Tamper-evident log
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Explainability
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Runtime governance
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Permission scopes
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Compliance certifications
- Lists SOC 2 Type II, ISO 27001, GDPR, EU and US data regions, and a HIPAA-ready region under security and compliance
“Security & compliance SOC 2 Type II ISO 27001 GDPR EU & US Data Regions HIPAA-ready region”
langfuse.com · checked Jul 31, 2026 - Regulatory alignment
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Outcome-based pricing
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Settlement mechanism
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Dispute process
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- SLA terms
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Evaluation coverage
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Service type
- Open-source agent evaluation and observability platform: tracing, evals, prompt management, experiments
“Open Source Agent Evals & Observability Trace, evaluate, and improve AI agents with one open platform.”
langfuse.com · checked Jul 31, 2026 - Regulatory status
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Underwriting backing
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Client types
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
Safety
- Safety evaluations
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Red teaming
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Safety policy
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Usage restrictions
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Model or system card
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Incident reporting
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Third-party evaluations
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Data handling
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
Practicality
- Pricing model
- Offers a free tier up to 50,000 observations/month with no credit card required
“Free tier: 50k observations/month . No credit card required.”
langfuse.com · checked Jul 31, 2026 - Price point
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Availability
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Deployment options
- Self-hostable via Docker Compose, Kubernetes (Helm), or Terraform on AWS/GCP/Azure
“Self-host at scale Docker Compose Kubernetes (Helm) AWS (Terraform) GCP (Terraform) Azure (Terraform)”
langfuse.com · checked Jul 31, 2026 - Integrations
- Integrates with OpenAI, Anthropic, Amazon Bedrock, Azure OpenAI, Mistral AI, Google Gemini, xAI, vLLM, Groq and more
“Model providers OpenAI Anthropic Amazon Bedrock Azure OpenAI Mistral AI Google Gemini xAI vLLM Groq and many more…”
langfuse.com · checked Jul 31, 2026 - Supported regions
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Support model
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
Ecosystem
- Protocols supported
- Native OpenTelemetry (OTel) support for traces
“Langfuse works with any language and framework supporting OTel instrumentation.”
langfuse.com · checked Jul 31, 2026 - API access
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Open source
- Fully MIT-licensed across all product features
“All product features MIT licensed”
langfuse.com · checked Jul 31, 2026 - Marketplace presence
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
Impact
- User base
- Used by 21 of the Fortune 50 and 100,000+ engineers
“Used by 21 of Fortune 50 10+ billion observations/month 100,000+ engineers building on Langfuse”
langfuse.com · checked Jul 31, 2026 - Deployment scale
- Processes 10+ billion observations per month
“10+ billion observations processed per month”
langfuse.com · checked Jul 31, 2026 - Target sectors
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- High-risk domains
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this
- Documented incidents
- no public informationlangfuse.com · checked Jul 31, 2026 · source did not state this