Technologies

What is Cap built with?

Q: Which repos have a stack like Cap's?

The ones that share most of its stack: Significant-Gravitas/AutoGPT, farion1231/cc-switch, and shadcn-ui/ui.

Cap is a Rust repo built with axum, Tokio, objc2-app-kit, objc2-foundation, Vite, and 5 more. It stores its data in MySQL, reaches it with Drizzle, signs people in with keyring, jose, next-auth, and @aws-sdk/credential-providers, takes payments with Stripe, sends email with Resend, stores files in AWS S3, uses AI through ai, Anthropic, and OpenAI, watches its errors with Sentry, connects to GitHub, makes its content with image, resvg, expo-image-picker, expo-document-picker, react-markdown, and 3 more, validates its data with schemars, valibot, Zod, and @hookform/resolvers, is tested with Vitest, @playwright/test, jsdom, and react-test-renderer, deploys with tracing, tracing-subscriber, log, tracing-appender, @effect/opentelemetry, and 1 more, and uses expo-secure-store, Redis, @aws-sdk/s3-request-presigner, and MCP. It has 2,208 files and 1,176,626 written lines, with 687 test files.

Read on November 4, 2026, at commit 81ef0e4. Read it as markdown

Frontend

Interface

metal2 files
softbuffer2 files
winit2 files
ash1 file

Cap

Backend

Sign-in

keyring1 file

Support

The base

axum
Tokio81 files
objc2-app-kit1 file
objc2-foundation1 file

Content

image14 files
resvg3 files

Validation

schemars

Deploy

tracing129 files
tracing-subscriber5 files
log4 files
tracing-appender3 files

Tools

proc-macro2
quote
clap20 files
clap_complete1 file
TypeScript1 file

Other

bitflags
crossbeam-channel
dispatch2
flate2
futures-util
miniz_oxide
nix
objc2-core-foundation
objc2-core-graphics
rand
regex
scopeguard
semver
smol_str
stable_deref_trait
time
windows-sys
serde_json93 files
serde87 files
tempfile78 files
anyhow58 files
thiserror55 files
windows43 files
futures37 files
libc19 files
bytemuck18 files
uuid16 files
reqwest12 files
dirs7 files
chrono6 files
url6 files
either5 files
sha25 files
base644 files
strum3 files
blake32 files
libloading2 files
objc22 files
zbus2 files
byteorder1 file
crc32fast1 file
directories1 file
imgref1 file
indexmap1 file
rayon1 file
rgb1 file
toml1 file

apps/chrome-extension

Frontend

The base

Styles

Tailwind CSS
class-variance-authority2 files
tailwind-merge1 file

Interface

Radix UI2 files

Icons

Lucide14 files

apps/chrome-extension

Support

Testing

Vitest17 files
@playwright/test4 files
jsdom1 file

Other

clsx9 files

apps/desktop-gpui

Frontend

Interface

global-hotkey4 files
rfd4 files
objc2-quartz-core1 file
tray-icon1 file

apps/desktop-gpui

Support

The base

Tokio27 files
objc2-app-kit4 files
objc2-foundation4 files

Content

image35 files
resvg2 files

Deploy

tracing81 files
tracing-appender1 file
tracing-subscriber1 file

Other

objc2-core-graphics
serde_json47 files
anyhow17 files
futures-util16 files
serde16 files
windows-sys15 files
tempfile14 files
chrono11 files
reqwest10 files
libc9 files
objc28 files
raw-window-handle6 files
dirs4 files
base643 files
block23 files
rodio3 files
semver3 files
crc32fast1 file
flate21 file
minisign-verify1 file
sha21 file
sys-locale1 file
toml1 file
unicode-segmentation1 file

apps/discord-bot

Backend

Sign-in

jose1 file

Services

GitHub1 file · apps/discord-bot/src/index.ts, line 6

Support

The base

Hono1 file

Validation

valibot1 file

Testing

Vitest3 files

Other

buffer1 file
tweetnacl1 file

apps/media-server

Support

The base

Hono7 files

Validation

Zod12 files

apps/mobile

Frontend

The base

react-native33 files
React27 files · in apps/chrome-extension/package.json
Expo18 files · in apps/mobile/package.json

Interface

react-native-reanimated11 files
expo-image7 files
react-native-safe-area-context5 files
react-native-svg5 files
expo-glass-effect3 files
react-native-gesture-handler2 files
expo-camera1 file
Shopify1 file

apps/mobile

Backend

Data

expo-secure-store1 file

Support

Content

expo-image-picker3 files
expo-document-picker1 file

Testing

Vitest35 files
react-test-renderer19 files

Other

expo-haptics5 files
expo-clipboard3 files
expo-file-system3 files
expo-constants2 files
expo-web-browser2 files
expo-device1 file
expo-linking1 file

apps/status

Frontend

The base

React3 files · in apps/chrome-extension/package.json
Next.js2 files · in packages/web-backend/package.json

apps/status

Backend

Data

Redis1 file · apps/status/lib/store.ts, line 1

apps/web

Frontend

The base

Next.js438 files · in packages/web-backend/package.json
React393 files · in apps/chrome-extension/package.json

Styles

Tailwind CSS
class-variance-authority3 files
tailwind-merge3 files

Interface

sonner106 files
motion53 files
Framer34 files
Radix UI12 files
@uidotdev/usehooks5 files
React Hook Form4 files
canvas-confetti1 file
react-tweet1 file
recharts1 file

Icons

Lucide137 files
fortawesome93 files

apps/web

Backend

Data

@aws-sdk/s3-request-presigner1 file

Data access

Drizzle221 files

Sign-in

next-auth15 files

AI

ai6 files

Services

Sentry8 files · apps/web/app/(org)/login/form.tsx, line 10
Stripe4 files · apps/web/components/pages/checkout/CheckoutForm.tsx, line 10
MCP2 files · apps/web/lib/mcp-card-client.ts, line 1
Anthropic1 file · apps/web/lib/ai/provider.ts, line 1
GitHub1 file · apps/discord-bot/src/index.ts, line 6
OpenAI1 file · apps/web/lib/ai/provider.ts, line 3

Support

The base

Hono20 files

Content

react-markdown7 files
remark-gfm5 files
dompurify1 file

Validation

Zod35 files
@hookform/resolvers4 files

Testing

Vitest400 files
jsdom4 files

Deploy

@effect/opentelemetry1 file

Tools

@tanstack/react-query-devtools1 file

Other

Effect132 files
clsx94 files
TanStack55 files
server-only33 files
date-fns7 files
@aws-sdk/client-cloudfront4 files
tldts2 files
.ENV1 file
moment1 file
OpenTelemetry1 file
uuid1 file

packages/config

Frontend

The base

Vite2 files · in apps/chrome-extension/package.json

packages/config

Support

Tools

@vitejs/plugin-react1 file

packages/database

Frontend

The base

packages/database

Backend

Data

MySQL4 files · packages/database/loops/health.ts, line 1

Data access

Drizzle14 files

Sign-in

next-auth3 files

Services

Resend1 file · packages/database/emails/config.ts, line 3

Support

Content

@react-email/components14 files

Validation

Zod1 file

Other

nanoid1 file

packages/env

Support

Validation

Zod2 files

packages/recorder-core

Support

Testing

Vitest8 files

packages/sdk-embed

Frontend

The base

React1 file · in apps/chrome-extension/package.json

packages/sdk-embed

packages/sdk-recorder

Frontend

The base

React1 file · in apps/chrome-extension/package.json

packages/sdk-recorder

packages/ui

Frontend

The base

Styles

Tailwind CSS
class-variance-authority4 files

Interface

Radix UI9 files
cmdk1 file
React Hook Form1 file

Icons

Lucide6 files

packages/ui

Support

Other

clsx1 file

packages/utils

Frontend

Styles

tailwind-merge1 file

packages/utils

Backend

Services

Stripe1 file · apps/web/components/pages/checkout/CheckoutForm.tsx, line 10

Support

Other

clsx1 file

packages/web-api-contract-effect

Support

Other

Effect1 file

packages/web-api-contract

Support

Validation

Zod2 files

packages/web-backend

Frontend

The base

packages/web-backend

Backend

Data

@aws-sdk/s3-request-presigner1 file

Data access

Drizzle16 files

Sign-in

@aws-sdk/credential-providers1 file

Services

AWS S31 file · packages/web-backend/src/S3Buckets/S3BucketClientProvider.ts, line 1

Support

Deploy

Vercel1 file

Other

Effect38 files
@smithy/types3 files

packages/web-domain

Support

Other

Effect19 files

Other repos with a similar stack

Ordered by how much of its stack they share with Cap, then by stars.

Significant-GravitasAutoGPT
187.9k
AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.
24 of 162 in common · PythonCompare →
farion1231cc-switch
151.7k
A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode,DeepSeek Harness and more. Only official website: ccswitch.io
19 of 162 in commonCompare →
shadcn-uiui
127.3k
Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.
16 of 162 in common · TypeScriptCompare →
langflow-ailangflow
156.3k
Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
15 of 162 in common · PythonCompare →
NousResearchhermes-agent
260.3k
The agent that grows with you
14 of 162 in common · PythonCompare →
langgeniusdify
160.4k
Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.
13 of 162 in common · PythonCompare →

Frequently asked questions

What language is Cap written in?

Cap is written in Rust: 2,208 files and 1,176,626 written lines.

What framework does Cap use?

Cap is built with axum, Tokio, objc2-app-kit, objc2-foundation, Vite, React, Hono, react-native, Expo, and Next.js.

What database does Cap use?

Cap stores its data in MySQL and reaches it with Drizzle.

The proof: packages/database/loops/health.ts, line 1

What does Cap sign people in with?

Cap signs people in with keyring, jose, next-auth, and @aws-sdk/credential-providers.

What does Cap take payments with?

Cap takes payments with Stripe.

The proof: apps/web/components/pages/checkout/CheckoutForm.tsx, line 10

Does Cap use AI?

Yes. Cap uses AI through ai, Anthropic, and OpenAI.

What services does Cap use?

Cap sends email with Resend, stores files in AWS S3, watches its errors with Sentry, connects to GitHub, and uses expo-secure-store, Redis, @aws-sdk/s3-request-presigner, and MCP.

The proof: packages/database/emails/config.ts, line 3

Does Cap have tests?

Yes. Cap has 687 test files and is tested with Vitest, @playwright/test, jsdom, and react-test-renderer.

Which repos have a stack like Cap's?

The ones that share most of its stack:Significant-Gravitas/AutoGPT farion1231/cc-switch shadcn-ui/ui

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