runsonwhat

Langchain's tech stack

What does Langchain use?

Langchain (langchain.com) uses at least 38 tools we can see from public records, including Vercel for hosting, Microsoft 365 for email and documents, HubSpot for sales and Mintlify for customer support. Last checked .

Industry
Internet
Size
11–50 employees
Based in
San Francisco, United States
LinkedIn
Company page
Re-check liveVisit langchain.com
Tools found
38
Categories
13
Oldest proven tool
Aug 2024
Last checked
Oct 2026

Langchain's stack, layer by layer

Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.

Edge & Hosting

4 tools, where the bytes are served from

Hosting & Cloud

CDN & Edge

Application

3 tools, what the product is built with

Frontend

Media & UI

Data & Observability

5 tools, what they measure and store

Analytics

Flags & Experiments

Go-to-market

17 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Sales & CRM

Support & Docs

Company Ops

9 tools, what the team runs on day to day

Workspace

Security & Compliance

What changed at Langchain

Using since

Dates come from the first certificate of the subdomain that points at the tool.

  1. Thinkific

Companies like Langchain also use

Tools common among companies with a similar stack that we haven't found at Langchain.

Companies with a stack like Langchain's

Ranked by shared tools, with rare tools counting more.

More Internet companies

Other Internet companies we've checked.

Langchain tech stack FAQ

What tools does Langchain use?

We've found 38 tools at Langchain (langchain.com). Edge & Hosting: Cloudflare, Amazon CloudFront and Vercel. Application: jQuery, Google Fonts and GSAP. Data & Observability: Google Analytics, Google Tag Manager and Segment. Go-to-market: Meta Pixel, Google Ads and HubSpot. Company Ops: Microsoft 365, Google Workspace and Let's Encrypt. Last checked October 2, 2026.

What cloud does Langchain run on?

Langchain uses Vercel and Google Cloud for hosting. We found Vercel through custom domain, DNS verification records and DNS records.

What CRM does Langchain use?

Langchain uses HubSpot, Qualified and Reo.dev for sales and CRM. We found HubSpot through email records.

What email provider does Langchain use?

Langchain uses Microsoft 365 and Google Workspace for email and documents. We found Microsoft 365 through DNS verification records.

What does Langchain use for customer support?

Langchain uses Mintlify and Discourse for customer support. We found Mintlify through custom domain.

What analytics tools does Langchain use?

Langchain uses Google Analytics, Google Tag Manager and Segment for analytics, among 4 tools in this category. We found Google Analytics through website code.

Does Langchain use Microsoft 365?

Yes. We found Microsoft 365 at Langchain through DNS verification records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what Langchain uses?

We read public traces only: Langchain's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website monthly.

We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.