Labs / Time machine / LangChain
LangChain
The subprocessor list as we last read it, on Nov 11, 2026.
Dates are when we read the list (UTC), not when LangChain changed it. Between two readings we don't know what it said.
tall: list changed · medium: document changed · short: read, no change · x: check failed · dotted: change dates only. Tap a tick or use the date box.
We record change dates, not every check, before Oct 11, 2026.
We have published no changes to this vendor's list; our first reading was Sep 22, 2026.
Read Nov 11, 2026 · 12 companies named as a subprocessor · stored document
| Name | Purpose | Location | First read |
|---|---|---|---|
| Amazon Web Services | AWS is LangChain's Cloud hosting provider and provides LLM inference for AI-powered features for applicable features and plans.; Cloud provider | USA | |
| Anthropic AI | AI model inference; Provides LLM inference for AI-powered features | USA | |
| Baseten AI | AI model inference; Provides LLM inference for AI-powered features | USA | |
| Clickhouse | Production Database; Production database | USA or Netherlands | |
| Fireworks AI AI | AI model inference; Provides LLM inference for AI-powered features | USA | |
| Google Cloud Platform | Cloud provider; GCP is LangChain's Cloud hosting provider and provides LLM inference for AI-powered features for applicable features and plans. | USA or Netherlands | |
| OpenAI AI | AI model inference; Provides LLM inference for AI-powered features | USA | |
| Parallel Web Systems | Provides web search for AI-powered features; Web Search | USA | |
| Pylon | Customer Support Ticketing and Communication; To provide customer support ticketing and communication services | USA | |
| Stripe | Payment Processing; To provide payment processing services for self-serve customers | USA | |
| Supabase | Authentication and backend services for LangSmith; Database provider | US or Germany | |
| TypeSafe | Inference; Inference provider for certain features (Filter Traces) | USA |
Built from the changes we published; changes we recorded without an alert (parser fixes, entries approved after review) don't appear. Where we later improved how we read a list, an earlier list may look different from the vendor's page at the time.
Gaps in our readings
No gaps since Oct 11, 2026.
All readings (36)
History starts Sep 22, 2026. Dates are UTC. Data CC BY 4.0. Shown as stored when this page was built.