Vendor record · langfuse.com
What Langfuse promises about your data.
Where Langfuse publishes its promises, how long it gives you when it adds a sub-processor, and what has changed.
- Where it publishes
Langfuse lists its sub-processors at langfuse.com/subprocessors. We last read it on October 15, 2026.
- What has changed
We've recorded no change to its sub-processor list or data processing agreement between August 31, 2026 and September 15, 2026. Subscribers hear about a change the morning we read it; the public record shows it 30 days later.
- Its window
When it adds a sub-processor, its clause at langfuse.com/dpa (read October 12, 2026) gives you 10 days to object.
- Window
- 10
- Sub-processors
- 18
- Pages
- 8
- Copies
- 96
days to object when it adds a sub-processor
sub-processors named
pages we watch
dated copies of all its pages, since August 31, 2026
Langfuse DPA
Langfuse's data processing agreement gives 10 days to object to a new sub-processor. Here is the clause, from our October 12, 2026 copy:
10
days to object
“Customer may object in writing to ClickHouse's appointment of a new Sub-Processor by notifying ClickHouse promptly in writing within ten (10) calendar days of notice of the change.”
Found automatically and not yet checked by a person. The quote is exact, and the link goes to the source. Nothing here says whether the term is good or bad, only that Langfuse published it.
langfuse.com/dpa · read 2026-10-12 · fingerprint 8187e8529410271e…
Langfuse sub-processors
Langfuse publishes a sub-processor list at langfuse.com/subprocessors; we last read it on October 15, 2026. It names 18 entries. The first 15, as the list prints them: Amazon Web Services (AWS); AWS Bedrock; ClickHouse Affiliates; ClickHouse Australia Pty Ltd – Australia; ClickHouse GmbH – Germany; ClickHouse India Private Limited – India; ClickHouse KK - Japan; ClickHouse Pte Ltd – Singapore; ClickHouse BV – The Netherlands; ClickHouse UK Co. Ltd. – United Kingdom; ClickHouse, Inc. – United States of America; Github, Inc.; Google LLC (Workspace); kapa.ai, Inc.; Langfuse GmbH – Germany; and 3 more in the full table below. The public record holds no change to the list read before September 15, 2026. A change we read after September 15, 2026 is published 30 days after we read it.
18 named · full table
Every public change we have recorded · Where vendors publish their lists
How long Langfuse keeps your data
We hold no statement about data retention from Langfuse's watched pages. The pages we watch: changelog langfuse.com/changelog; data processing agreement langfuse.com/dpa; model card langfuse.com/integrations/model-providers/openai-py; pricing page langfuse.com/pricing; privacy policy langfuse.com/privacy; sub-processor list langfuse.com/subprocessors; terms of service langfuse.com/terms; trust and security page langfuse.com/security. On training with customer data, Langfuse's privacy policy (langfuse.com/privacy, in the copy read October 11, 2026) says: “Learn more about personal information you disclose to us. - Do we process any sensitive personal information? We do not process sensitive personal information. - Do we receive any information from third parties? We do not receive any information from third parties. - How do we process your information? We process your information to provide, improve, and administer our…”
Training on customer data
“How Do We Process Your Information?](#infouse) In Short: We process your information to provide, improve, and administer our Services, communicate with you, for security and fraud prevention, and to comply with law.”
langfuse.com/privacy · read 2026-10-11
Retention windows vendors publish · What vendors say about training
What the pages say
Read automatically from the pages below and shown as printed. A missing row is a gap in our reading, not proof it isn’t there.
Sub-processors named · 18 · 1 name an AI provider we list
Amazon Web Services (AWS)
Cloud hosting and infrastructure provider
AWS BedrockAI · AWS Bedrock
Generative AI services
ClickHouse Affiliates
Description of Processing
ClickHouse Australia Pty Ltd – Australia
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
ClickHouse GmbH – Germany
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
ClickHouse India Private Limited – India
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
ClickHouse KK - Japan
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
ClickHouse Pte Ltd – Singapore
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
ClickHouse BV – The Netherlands
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
ClickHouse UK Co. Ltd. – United Kingdom
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
ClickHouse, Inc. – United States of America
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
Github, Inc.
Support escalations
United States of America
Google LLC (Workspace)
Email and office applications
United States of America
kapa.ai, Inc.
Support deflection with AI
United States of America
Langfuse GmbH – Germany
Provision of technical services, support services, and supporting the provision, management and maintenance of the Langfuse Cloud Services.
Pylon Labs, Inc.
Customer support chat platform
United States of America
Salesforce, Inc.
Customer support case management, messaging services (Slack)
United States of America
Waypoint Tech Inc.
Support knowledge management
United States of America
Certifications the trust page names · ISO 27001 · SOC 2 · SOC 2 Type II
Laws the trust page names · GDPR · HIPAA
The pages' own stamps: Effective date 2026-08-10 · Effective date 2026-04-10 · Effective date 2026-06-24 · Last updated 2026-08-21 · version 2026-08-27
The pages we watch
Every page we read, so you can check it. Each is re-read on a schedule, and we keep a dated copy when it changes.
What this page doesn’t tell you
No score.
Nothing here rates Langfuse. A short notice window is a contract term, not a criticism.
Public pages only.
Private notices and negotiated terms are invisible to us. Your agreement may say something different.
Wrong? Tell us.
Corrections are free, always. We reply within 2–3 business days.
How we read a page · The change log
Work at Langfuse? With an email at langfuse.com you can claim this record, suggest pages we should watch, and take a free copy of it. Claiming changes nothing we publish.
Is Langfuse in your product? Hear the morning we read a change.
You get the lines that moved, in Langfuse’s own words, and the date any window closes. No card. Nothing to cancel.