integration-privy Skill (Solana Mobile): Add Privy Login to a Solana App

Makes Claude add Privy login to a Solana Expo Android app on top of Mobile Wallet Adapter, using Sign-In-With-Solana.

Installs: 13.1K; on skills.sh
Stars: 8; on GitHub
Files: 3; besides SKILL.md
Updated: Oct 2026; last repo commit

integration-privy makes Claude wire Privy accounts into a Solana Expo Android app that already connects wallets over Mobile Wallet Adapter. Privy owns the user and a token your backend can verify, and the wallet app still does all signing. It is Solana Mobile's skill about Privy, not a skill published by Privy.

It starts when you ask to install @privy-io/expo, mount PrivyProvider, log a user in with useLoginWithSiws, link a wallet to a Privy account, or read the Privy access token from a backend. It needs a Privy app ID and client ID from the Privy dashboard, set as EXPO_PUBLIC_ variables. It is Android and development builds only.

Good for

Solana Expo teams that need user accounts across devices
Apps that need a session a server can verify
Developers debugging a Privy plus Mobile Wallet Adapter setup

Install integration-privy

Claude Code

Copy this prompt.

Install the integration-privy skill in Claude Code. Run this command:

npx -y skills add solana-mobile/solana-mobile-skills --skill integration-privy --skill solana-mobile-wallet --skill solana-mobile

Then check that it loaded and tell me how to use it.

2
Paste it into Claude Code. It shows the change and asks before running it.

Requires Node.js.

The skill has Claude run npx and edit your project, so there is no Claude app upload route. The README says it needs an Expo React Native project, an Android development build (Expo Go does not work) and an Android development environment, and that npx solana-mobile@latest doctor checks the environment. The first method also installs solana-mobile-wallet, solana-mobile, which SKILL.md names as prerequisites.

Built from the package data we hold. Not yet tested by us. Source.

What's in the skill

When it loads

Add Privy authentication to a Solana Expo Android app on top of Mobile Wallet Adapter, using Sign-In-With-Solana. Use when installing @privy-io/expo, mounting PrivyProvider, logging a user in with useLoginWithSiws, linking a wallet to an existing Privy account, reading the Privy access token from a backend, or debugging a Privy plus MWA setup.

Sections in SKILL.md

Before you start
Step 1: create the Privy app
Step 2: install and configure
Step 3: mount the providers
Step 4: wait for isReady
Step 5: sign in with SIWS
Step 6: sign out of both
Which side owns what
Reference material
Related skills
Links

Key facts

Author: Solana Mobile (not Privy)
License: Apache-2.0
Installs on skills.sh: 13,076 (Nov 2, 2026)
GitHub stars: 8 (Nov 2, 2026)
skills.sh audits: Gen Agent Trust Hub pass; Socket pass; Snyk pass (Nov 2, 2026)
Last repo commit: Oct 21, 2026
What installs: 4 files including SKILL.md and 3 reference files. It bundles no scripts.
Needs: A Privy app ID and client ID, a working useMobileWallet(), and an Android development build
Works in: Claude Code, Codex, OpenCode, Cline, Amp and other agents the skills installer supports

What it includes

You create the Privy app, enable SVM wallets and save the App ID and Client ID.
Step 1: create the Privy app
Installs @privy-io/expo, then adds polyfills, app.json plugins and a Metro resolver fix.
Runs code · Step 2: install and configure
Mounts PrivyProvider and MobileWalletProvider above every screen.
Write · Step 3: mount the providers
Waits for usePrivy isReady so signed-in users do not flash a login screen.
Write · Step 4: wait for isReady
Generates a message, has the wallet sign it, then exchanges the signature for a session.
Network · Step 5: sign in with SIWS
Calls logout and disconnect together to avoid a half-signed-out state.
Step 6: sign out of both

From the official docs

Permissions

Medium risk

This skill makes Claude run commands and write code in your project. Work on a branch and read the diff before you build.

What it can do

Read your data
Create and change things
Delete things
Read-only mode

Watch out for

It installs packages and edits native wiring
Step 2 runs npx expo install @privy-io/expo @privy-io/expo-native-extensions and changes the entry module, app.json plugins and the Metro config, then needs a native rebuild with npx expo run:android. github.com
Never put the Privy app secret in the app
The two values for the mobile app are public client identifiers. SKILL.md says the Privy app secret never belongs in a mobile app, because EXPO_PUBLIC_ values are readable in the shipped bundle. Server verification code in references/siws.md reads PRIVY_APP_SECRET from the server environment. github.com
Sign-in goes through Privy
Privy generates the sign-in message and exchanges the wallet's signature for a session. You create the Privy app in the Privy dashboard yourself. github.com
The install command uses npx -y
The README's install command is npx -y skills add. The -y flag answers npx's own prompt to download the skills package with yes. Drop -y if you want to see that prompt. github.com
It runs the CLI to fetch a reference app
SKILL.md suggests npx solana-mobile@latest create /tmp/reference-app --template expo-kit-privy --skip-install to read the template app. references/setup.md also runs npx expo install fast-text-encoding react-native-quick-crypto for the polyfills. github.com

Security advisories

No published security advisories as of Nov 2, 2026.

Technical details

Turning on read-only	No read-only mode is documented.
Talks to	npm registry (package installs). dashboard.privy.io (you set up the app there)
Sign-in and keys	SKILL.md says the Privy app ID and client ID are public EXPO_PUBLIC_ values and the app secret never goes in the mobile app.
Scopes	Edits entry module, app.json plugins and Metro config in your Expo project Installs npm packages and needs a native rebuild

Questions

How do I install integration-privy?

Use the install box above. Its first method also installs solana-mobile-wallet and solana-mobile, which SKILL.md names as prerequisites. The repo has 7 skills in total.

Is integration-privy safe to use?

It bundles no scripts, but it makes Claude install npm packages and edit your entry module, app.json and Metro config. Keep the Privy app secret out of the mobile app. Our advice: work on a git branch and read the diff before you rebuild the native app.

Is integration-privy made by Privy?

No, it is published in Solana Mobile's repo, and plugin.json names Solana Mobile as author. The Privy links in SKILL.md point to Privy's own docs and dashboard.

Does integration-privy work in the Claude app?

We list no Claude app upload for it, because it edits your Expo project and runs npx commands. The README lists Claude Code, Codex, OpenCode, Cline, Amp and other agents the skills installer supports. Our advice: use it in Claude Code or Codex.

Do I need Privy if I only need a connected address?

No. SKILL.md says an app that only needs a connected address does not need Privy, and to use the solana-mobile-wallet skill alone. Privy is for a stable user record across devices, a server-verifiable session, or login methods beyond a wallet.

Why does Privy login reject a correct wallet signature?

SKILL.md calls the SVM (Solana) wallets toggle in the Privy dashboard the easy one to skip. While it is off, login rejects every SIWS attempt even though the wallet signed correctly.

Does Privy sign my transactions?

No. SKILL.md says Privy signs nothing in this setup: every signature still comes from the wallet app over Mobile Wallet Adapter.

Do I need the other skills too?

SKILL.md lists a working useMobileWallet() from solana-mobile-wallet and an Android development build from solana-mobile as prerequisites. The install box includes both.

Information

updated Nov 2, 2026

Repository: solana-mobile/solana-mobile-skills
Folder: skills/integration-privy

solana-mobile/solana-mobile-skills skills.sh

Sources

Docs, issue trackers and discussions this page is built from.

Show all 5

solana-mobile-skills README · github.com
integration-privy SKILL.md · github.com
plugin.json · github.com
integration-privy troubleshooting.md · github.com
integration-privy siws.md · github.com