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Privacy Policy

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Applicability of this Privacy Policy

Last updated: April 28, 2024

LangChain, Inc. (“LangChain,” “we,” “us,” or “our”) has prepared this Privacy Policy to explain (1) what personal information we collect, (2) how we use and share that information, and (3) your choices concerning our privacy and information practices.

We provide a unified developer platform LangSmith for developing, collaborating, testing, deploying and monitoring LLM applications (the “Services”). This Privacy Policy applies to personal information that we collect in connection with the Services, our website(s) (including https://www.langchain.com/), and any other products and/or services that specifically link to this Privacy Policy.  This Privacy Policy does not apply to other products and services of LangChain if they do not link to this Privacy Policy, such as the LangChain Journaling Application and LangChain OpenGPTs .

If you are a customer of LangChain, this Privacy Policy does not apply to personal information that we process on your behalf (if any) as your service provider. Such personal information shall instead be governed by the terms and conditions of the separate customer agreement or terms of service that you have agreed to with LangChain. In addition, our Services are designed for businesses and are not intended for personal, family, or household use. Accordingly, we treat all personal information covered by this Privacy Policy as pertaining to individuals acting as business representatives, rather than in their personal capacity.  

Personal information we collect

Information you provide to us:

  • Account information: When you create an account to use the Services, we collect information such as your email address, password, and other similar account registration information.
  • Payment Information: If you are using a paid version of the Services, you may need to provide us with payment information, such as credit card information, banking information, or a billing address. We may use third-party payment providers to process payments on the Services.  In particular, credit card information is stored and processed by our payment providers on our behalf.
  • Business Contact Information: If you are a representative of one of our actual or prospective customers, suppliers or business partners, we may collect personal information about you (such as your name, contact details and role) when entering into an agreement with your company or otherwise during the course of our relationship with your company.  
  • Feedback or correspondence, such as information you provide when you contact us with questions, feedback, reviews, or otherwise correspond with us online.
  • Usage information, such as information about how you use the Services and interact with us.
  • Marketing information, such as your preferences for receiving communications about our activities, services, newsletters, and publications, and details about how you engage with our communications.
  • Other information that we may collect which is not specifically listed here, but which we will use in accordance with this Privacy Policy or as otherwise disclosed at the time of collection.

Information we obtain from third parties.  We may obtain your personal information from other third parties, such as marketing partners, publicly-available sources and data providers, for the purposes of marketing products and services that may interest you, delivering personalized communications, and other similar activities.  In addition, we may maintain pages on social media platforms, such as Facebook, Twitter, Instagram, and other third-party platforms. When you visit or interact with our pages on those platforms, the platform provider’s privacy policy will apply to your interactions and their collection, use and processing of your personal information. You or the platforms may provide us with information through the platform, and we will treat such information in accordance with this Privacy Policy.

Automatic data collection. We and our service providers may automatically log information about you, your computer or mobile device, and your interaction over time with our Services, our communications and other online services, such as:

  • Device data, such as your computer’s or mobile device’s operating system type and version, manufacturer and model, browser type, screen resolution, RAM and disk size, CPU usage, device type (e.g., phone, tablet), IP address, unique identifiers (including identifiers used for advertising purposes), language settings, mobile device carrier, radio/network information (e.g., WiFi, LTE, 4G), and general location information such as city, state or geographic area.
  • Online activity data, such as pages or screens you viewed, how long you spent on a page or screen, browsing history, navigation paths between pages or screens, information about your activity on a page or screen, access times, and duration of access, and whether you have opened our marketing emails or clicked links within them. We may use third party tools to assist with capturing online activity data.
  • Email Open/Click Information. We may use pixels in our email campaigns that allow us to collect your email and IP address as well as the date and time you open an email or click on any links in the email that we may send to you.

We may use the following tools for automatic data collection:

  • Cookies, which are text files that websites store on a visitor’s device to uniquely identify the visitor’s browser or to store information or settings in the browser for the purpose of helping you navigate between pages efficiently, remembering your preferences, enabling functionality, helping us understand user activity and patterns, and facilitating online advertising.
  • Local storage technologies, like HTML5, that provide cookie-equivalent functionality but can store larger amounts of data, including on your device outside of your browser in connection with specific applications.
  • Web beacons, also known as pixel tags or clear GIFs, which are used to demonstrate that a webpage or email was accessed or opened, or that certain content was viewed or clicked.

For additional details, please see our Cookie Policy below.

How we use your personal information

We may use the following tools for automatic data collection:

  • Provide, operate, maintain, secure and improve our Services.
  • Provide information about our Services.
  • Communicate with you about our Services, including by sending you announcements, updates, security alerts, and support and administrative messages.
  • Respond to your requests, questions and feedback.

Marketing and advertising. We may from time-to-time send you direct marketing communications as permitted by law, including, but not limited to, notifying you of special promotions, offers and events via email. You may opt out of our marketing communications as described in the “Opt out of marketing communications” section below.

For research and development. We may use your personal information for research and development purposes, including to analyze and improve our Services and our business. As part of these activities, we may create aggregated, de-identified, or other anonymous data from personal information we collect. We make personal information into anonymous data by removing information that makes the data personally identifiable to you. We may use this anonymous data and share it with third parties for our lawful business purposes, including to analyze and improve our Services and promote our business.

Compliance and protection. We may use personal information to:

  • Comply with applicable laws, lawful requests, and legal process, such as to respond to subpoenas or requests from government authorities.
  • Protect our, your or others’ rights, privacy, safety or property (including by making and defending legal claims).
  • Audit our internal processes for compliance with legal and contractual requirements and internal policies.
  • Enforce the terms and conditions that govern our Services.
  • Prevent, identify, investigate and deter fraudulent, harmful, unauthorized, unethical or illegal activity, including cyberattacks and identity theft.

If you are an individual in the United Kingdom or European Economic Area (EEA), we collect and process information about you only where we have legal bases for doing so under applicable United Kingdom and/or EU laws.  The legal bases depend on the Services you use and how you use them. This means we collect and use your information only where:

  • We need it to provide you the Services, including to operate the Services, provide customer support and personalized features and to protect the safety and security of the Services;
  • It satisfies a legitimate interest (which is not overridden by your data protection interests), such as for research and development, to market and promote the Services and to protect our legal rights and interests;
  • You give us consent to do so for a specific purpose; or
  • We need to process your data to comply with a legal obligation.

If you have consented to our use of information about you for a specific purpose, you have the right to change your mind at any time, but this will not affect any processing that has already taken place.  Where we are using your information because we or a third party (e.g. your employer) have a legitimate interest to do so, you have the right to object to that use though, in some cases, this may mean no longer using the Services.

How we share your personal information

Service providers. We may share your personal information with third party companies and individuals that provide services on our behalf or help us operate our Services (such as lawyers, bankers, auditors, insurers, and providers that assist with hosting, analytics, email delivery, marketing, and database management).

Authorities and others. We may disclose your personal information to law enforcement, government authorities, and private parties, as we believe in good faith to be necessary or appropriate for the compliance and protection purposes described above.

Business transfers. We may transfer or otherwise share some or all of our business or assets, including your personal information, in connection with a business transaction (or potential business transaction) such as a corporate divestiture, merger, consolidation, acquisition, reorganization or sale of assets, or in the event of bankruptcy or dissolution. In such a case, we will make reasonable efforts to require the recipient to honor this Privacy Policy.

Affiliates: We may share personal information with our current and future affiliates, meaning an entity that controls, is controlled by, or is under common control with us. Our affiliates may use the personal information we share in a manner consistent with this Privacy Policy.

Cross-border processing of your personal information

We are headquartered in the United States. To provide and operate our services, it is necessary for us to process your personal information in the United States. If we transfer personal information across borders such that we are required to apply appropriate safeguards to personal information under applicable data protection laws, we will do so. Please contact us for further information about any such transfers or the specific safeguards applied.

Your choices

Personal information requests: In certain circumstances (including based on where you are located), you may have the following rights in relation to your personal information:

  • the right to learn more about what personal information of yours is being processed, how and why such information is processed and the third parties who have access to such personal information. We have made this information available to you without having to request it by including it in this Privacy Policy;
  • the right to access your personal information;
  • the right to rectify/correct your personal information;
  • the right to restrict the use of your personal information where permitted under applicable law;
  • the right to request that your personal information is erased/deleted where permitted under applicable law;
  • the right to data portability (i.e. receive your personal information or have it transferred to another controller in a structured, commonly-used, machine readable format) where permitted under applicable law; and
  • the right to object to processing of your personal information or to direct us not to share your personal information with a non-affiliated third party where permitted under applicable law.

To make a request, please contact us as provided in the “How to Contact Us” section below. We may ask for specific information from you to help us confirm your identity. We will require authorized agents to confirm their identity and authority, in accordance with applicable laws. You are entitled to exercise the rights described above free from discrimination.

In addition, where you have provided your consent to processing for the purposes indicated above, you may withdraw your consent at any time (or otherwise exercise your aforementioned rights in relation to your personal information) by contacting us below(see contact details below).

Please note that in some circumstances, we may not be able to fully comply with your request, for example if we are required to retain certain information about you to comply with applicable laws and regulations or if the information is necessary in order for us to provide the services you requested. In particular, we, and our collection and processing of your personal information, may be governed by laws and regulations on anti-money laundering, fraud prevention, taxation and financial services. We will not discriminate against you for exercising your rights. We will not deny you access to our services, or provide you a lower quality of services if you exercise your rights.

You also have the right to lodge a complaint with the relevant authority (as applicable) or a supervisory authority in the UK or EU member state of your usual residence or place of work or of the place of the alleged breach, if you consider that the processing of your personal information carried out by LangChain or any of our affiliates or third-party service providers, has breached data protection laws. Individuals and data protection supervisory authorities in the EU and the UK may contact our data protection representatives according to Articles 27 EU and UK GDPR:

You may also appeal to certain courts against (A) any failure of the relevant authority to give written notice of whether the complaint is either being investigated or not being investigated and, where applicable, the progress and the outcome of the investigation or (B) a determination of the relevant authority not to investigate the complaint or a determination that a controller or processor has not breached or is not likely to breach an operative provision in connection with the complaint.

Opt out of marketing communications. You may opt out of email communications by following the opt-out or unsubscribe instructions at the bottom of the email.  

Online tracking opt-out. There are a number of ways to opt out of having your online activity and device data collected through our Services, for additional details please see our Cookie Policy below.  

Job Applicants

When you visit the careers portion of our website, we collect personal information that you provide to us in connection with your job application. This includes business and personal contact information, professional credentials and skills, educational and work history, and other information of the type that may be included in a resume. This may also include diversity information that you voluntarily provide. We use this information to facilitate our recruitment activities and process employment applications, such as by evaluating a job candidate for an employment activity, and monitoring recruitment statistics. We may also use and share this information to provide improved administration of the website, and as otherwise necessary: (a) to comply with relevant laws or to respond to subpoenas or warrants served on us; (b) to protect and defend the rights or property of us or others; or (c ) in connection with a legal investigation.

Data Retention

We may retain your personal information for as long as it is reasonably needed in order to maintain and expand our relationship and provide you with our services; in order to comply with our legal and contractual obligations; or to protect ourselves from any potential disputes. To determine the appropriate retention period for personal information, we consider the amount, nature, and sensitivity of such information, the potential risk of harm from unauthorized use or disclosure of such information, the purposes for which we process it, and the applicable legal requirements.  

Other sites, mobile applications and services

Our Services may contain links to other websites, mobile applications, and other online services operated by third parties. These links are not an endorsement of, or representation that we are affiliated with, any third party. In addition, our content may be included on web pages or in mobile applications or online services that are not associated with us. We do not control third party websites, mobile applications or online services, and we are not responsible for their actions. Other websites and services follow different rules regarding the collection, use and sharing of your personal information. We encourage you to read the privacy policies of the other websites and mobile applications and online services you use.

Security practices

We use reasonable organizational, technical and administrative measures designed to protect against unauthorized access, misuse, loss, disclosure, alteration and destruction of personal information we maintain. Unfortunately, data transmission over the Internet cannot be guaranteed as completely secure. Therefore, while we strive to protect your personal information, we cannot guarantee the security of personal information. In the event that we are required to notify you about a situation involving your data, we may do so by email or telephone to the extent permitted by law.

Children

Our Services are not intended for children, and we do not collect personal information from them. We define “children” as anyone under 18 years old. If we learn we have collected or received personal information from a child without verification of parental consent, we will delete the information. If you believe we might have any information from or about a child, please contact us via the contract information noted below.

Changes to this Privacy Policy

We reserve the right to modify this Privacy Policy at any time. If we make material changes to this Privacy Policy, we will notify you by updating the date of this Privacy Policy and posting it on our Services. We may also provide notification of changes in another way that we believe is reasonably likely to reach you, such as via e-mail (if you have an account where we have your contact information) or another manner through our Services.

Any modifications to this Privacy Policy will be effective upon our posting the new terms and/or upon implementation of the new changes on our Services (or as otherwise indicated at the time of posting). In all cases, your continued use of the Services after the posting of any modified Privacy Policy indicates your acceptance of the terms of the modified Privacy Policy.

How to contact us

If you would like to submit a Data Subject Access Request, please fill out our form here. If you have any questions or concerns, you can reach us by email at support@langchain.dev.

Notice to UK and EU Residents

If you would like to submit a complaint about our use of your personal information or our response to your requests regarding your personal information, you can contact us or submit a complaint to the data protection regulator in your jurisdiction. You can find your data protection regulator here.

UK and EU Representatives.

We have appointed a representative in the EU and the UK. For the EU, please contact our representative by post at INSTANT EU GDPR REPRESENTATIVE LIMITED Office 2 12A Lower Main Street, Lucan Co. Dublin K78 X5P8 Ireland, or by email at contact@gdprlocal.com. In the UK, please contact our representative by post at GDPR Local Ltd 1st Floor Front Suite 27-29 North Street, Brighton England BN1 1EB, or by email at contact@gdprlocal.com.

Cookie Policy

This Cookie Policy explains how LangChain uses cookies and similar technologies in connection with our Services. This Cookie Policy should be read in conjunction with our Privacy Policy.

If you have any questions or concerns about the Cookie Policy, please contact us at support@langchain.dev or as otherwise described in our Privacy Policy.

What are cookies and similar technologies?

  • Cookies are text files that websites store and access on a visitor’s device to uniquely identify the visitor’s browser or to store information or settings in the browser to allow us distinguish you from other users of our Services for the purpose of helping you navigate between pages efficiently, remembering your preferences, enabling functionality, helping us understand activity and patterns, and facilitating online advertising.
  • Local storage technologies, like HTML5, provide cookie-equivalent functionality but can store larger amounts of data, including on your device outside of your browser in connection with specific applications.
  • Web beacons, also known as pixel tags or clear GIFs, are used to demonstrate that a webpage or email was accessed or opened, or that certain content was viewed or clicked.

This Cookie Policy refers to all these technologies, and other types of tracking technologies used through our Services, collectively as “cookies.”

How do we use cookies and other similar technologies?

We may use both persistent cookies and session cookies. Persistent cookies stay on your device for a set period of time or until you delete them, while session cookies are deleted once you close your web browser. The cookies placed through your use of our website are either set by us (first-party cookies) or by a third party at our request (third-party cookies).

We may also allow our advertising partners to collect this information through our website.

What types of cookies and similar technologies do we use?

We may use the following categories of cookies:

Strictly Necessary Cookies: These cookies are necessary for the Services to function and cannot be switched off in our systems. They allow us to enable security, prevent fraud and debug the Services and are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but then some parts of the Services will not work.

Functional Cookies. These cookies are used to recognize you when you return to our Services or to enable the Services to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of the Services may not function properly.

Analytics Cookies. These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our Services. They help us to know which pages are the most and least popular and see how visitors move around the Services. All information these cookies collect is aggregated. If you do not allow these cookies we will not know when you have visited our Services and will not be able to monitor its performance.

How can you control the use of cookies?

Depending on where you access the Services from, you may be presented with a cookie banner or other tool to provide permissions prior to non-Strictly Necessary cookies being set. In this case, we only set these non-Strictly Necessary cookies with your consent.

You can also limit online tracking by:

  • Blocking cookies in your browser. Most browsers let you remove or reject cookies, including cookies used for interest-based advertising. To do this, follow the instructions in your browser settings. Many browsers accept cookies by default until you change your settings. For more information about cookies, including how to see what cookies have been set on your device and how to manage and delete them, visit www.allaboutcookies.org.

    Use the following links to learn more about how to control cookies and online tracking through your browser:‍
  • Blocking advertising ID use in your mobile settings. Your mobile device settings can provide functionality to limit use of the advertising ID associated with your mobile device for interest-based advertising purposes.
  • Using privacy plug-ins or browsers. You can block our websites from setting cookies used for interest-based ads by using a browser with privacy features, like Brave, or installing browser plugins like Privacy Badger, Ghostery, or uBlock Origin, and configuring them to block third party cookies/trackers.
  • Platform opt-outs. Some advertising companies offer opt-out features that let you opt out of use of your information for interest-based advertising, including:

Note that because these opt out mechanisms are specific to the device or browser on which they are exercised, you will need to opt out on every browser and device that you use.

Do Not Track. Some Internet browsers can be configured to send “Do Not Track” signals to the online services that you visit. We currently do not respond to “Do Not Track” or similar signals. To find out more about “Do Not Track,” please visit http://www.allaboutdnt.co

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