Is LangChain safe with your data?

LangChain

63/100

Good disclosure · medium confidence

LangChain earns a B (63/100) because it discloses most of its data practices.

#34

of 211 apps ranked

score · Data platform avg 43

+20

vs category average

Grade scaleA · 70–100B · 60–69C · 48–59D · 35–47F · 0–34

LangChain explicitly prohibits training on customer data and includes comprehensive data rights, but retention standards and security controls remain vague.

What LangChain's privacy policy and terms of service say about your data

Training data protection

LangChain agrees that it will not use Customer Data to train on, develop, or otherwise improve its products, including any large language models

Data subject rights

Explicit rights to access, correct, delete (within 30 days), port, and object to processing

Retention vagueness

Retention period stated only as 'for as long as it is reasonably needed' with no concrete timeframe

Security controls

Administrative, technical, and physical safeguards mentioned but no named controls (TLS, AES-256, RBAC, certifications silent)

What the policy is silent or vague on

Not stated: a way to opt out of training
Not stated: whether training use differs by plan
Not stated: shorter retention for AI conversation logs
Not stated: a data-minimisation commitment

LangChain privacy rating

Training-data use2 of 4 disclosed

Keeps user inputs out of model training, or makes training opt-inDisclosed

Names a way to opt out of or into trainingSilent

Says whether training use differs by plan or tierSilent

Lets the user keep ownership of generated outputsDisclosed

Data-subject rights5 of 5 disclosed

Grants a right to access your dataDisclosed

Grants a right to delete your dataDisclosed

Offers data portability in a usable formatDisclosed

Grants a right to correct your dataDisclosed

Grants a way to object to or opt out of processingDisclosed

Retention and deletion1 of 4 disclosed

States a retention period for your dataPartial

States a deletion timeline after closure or requestDisclosed

Sets a shorter retention for AI conversation logsSilent

Commits to collecting only the data it needsSilent

Third-party sharing2 of 5 disclosed

Lists the categories of third parties it shares withDisclosed

References a sub-processor list or data processing agreementDisclosed

Does not sell or share data for advertising, or offers opt-outSilent

Names a safeguard for international data transfersPartial

States a standard for government and law-enforcement accessPartial

Transparency2 of 4 disclosed

Discloses that you are interacting with AIPartial

Marks AI-generated or synthetic outputNot applicable

Enumerates the categories of data it collectsDisclosed

Maps processing purposes to legal basesPartial

Is versioned and dated, with change noticeDisclosed

Sensitive data and children1 of 2 disclosed

Discloses automated decisions and a human-review pathNot applicable

Limits the use of special-category dataSilent

Governs biometric data specificallyNot applicable

States protections for children's dataDisclosed

Security and accountability1 of 3 disclosed

Describes its security safeguardsSilent

Commits to breach notificationPartial

Names a certification or a privacy contactDisclosed

DisclosedPartialSilentAdverseNot applicable

Details

Category: Data platform
Modalities: text
Processes biometrics: No
Policy last updated: 2026-06-02
Region scored: Global / US-default
Last assessed: 2026-07-08

Documents examined

Other data platform apps

Each grade reflects our analysis of what an app states in its public privacy policy and terms as of the assessment date. It measures the transparency of those documents, not the company's actual data practices, security, or compliance. Grades are our opinion, offered for general information. Full disclaimer.