Letta's tech stack
What does Letta use?
Letta (letta.com) uses at least 13 tools we can see from public records, including Vercel for hosting, Google Workspace for email and documents, HubSpot for sales and Discord for customer support. Last checked .
- Tools found
- 13
- Categories
- 12
- Layers
- 5 of 5
- Last checked
- Oct 2026
Letta'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
2 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
4 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Monitoring
Analytics
Go-to-market
3 tools, how they find and keep customers
Company Ops
2 tools, what the team runs on day to day
Workspace
Dev Tools
Companies like Letta also use
Tools common among companies with a similar stack that we haven't found at Letta.
Companies with a stack like Letta's
Ranked by shared tools, with rare tools counting more.
Browser UseB2B · 1–10 people6in common
Constellationconstellationfinance.ai5in common
TracePass LTDSoftware7in common
PentestTools SRLComputer & Network Security · 51–200 people8in common
Scorecard AIArtificial Intelligence7in common
Whoppah B.V.Internet · 11–50 people6in common
ContinueEngineering, Product and Design · 1–10 people6in common
Val Townval.town8in common
Letta tech stack FAQ
What tools does Letta use?
As of October 2026, runsonwhat has found 13 tools at Letta (letta.com) in public records. Edge & Hosting: Cloudflare and Vercel. Application: Google Fonts, Stripe and MCP Registry. Data & Observability: Plausible and Better Stack. Go-to-market: HubSpot and Discord. Company Ops: Google Workspace and Docker. Last checked October 18, 2026.
What cloud does Letta run on?
Letta uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a subdomain that points at Vercel and a DNS verification record. Vercel is used by 46,626 companies runsonwhat tracks.
What CRM does Letta use?
Letta uses HubSpot for its CRM, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on letta.com. HubSpot is used by 92,104 companies runsonwhat tracks.
What email provider does Letta use?
Letta uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on letta.com. Google Workspace is used by 397,572 companies runsonwhat tracks.
What does Letta use for customer support?
Letta uses Discord for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Discord through Discord code on letta.com. Discord is used by 4,777 companies runsonwhat tracks.
What payment provider does Letta use?
Letta uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on letta.com. Stripe is used by 26,345 companies runsonwhat tracks.
Does Letta use Google Fonts?
Yes. runsonwhat found Google Fonts at Letta through Google Fonts code on letta.com. Google Fonts is a Media & UI tool used by 791,520 companies runsonwhat tracks.
Does Letta use AI tools?
Yes. runsonwhat has found MCP Registry at Letta; MCP Registry, for example, through a DNS verification record for MCP Registry. AI services called only from servers leave no public trace, so Letta may use more AI tools than these.
Which companies have a tech stack similar to Letta's?
The companies with the stacks most like Letta's are Browser Use, Constellation, TracePass and PentestTools, according to runsonwhat (October 2026). Each shares 5 to 8 tools with Letta, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Letta uses?
runsonwhat reads public records only. Of the 13 tools at Letta, 5 were found through DNS records, 3 through code on letta.com, 2 through email records, 2 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and letta.com about 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.