Productivity

authenticate-wallet

coinbase/agentic-wallet-skills · updated Apr 8, 2026

$npx skills add https://github.com/coinbase/agentic-wallet-skills --skill authenticate-wallet
summary

Email OTP-based wallet authentication with validation and status checking.

  • Two-step login flow: initiate with email to receive a 6-digit OTP, then verify with the flowId and code to complete authentication
  • Includes input validation rules for email, flowId, and OTP to prevent shell injection before executing commands
  • Provides status checking, balance queries, address retrieval, and wallet window access via companion CLI commands
  • All commands support --json output for machine-readab
skill.md

Authenticating with the Payments Wallet

When the wallet is not signed in (detected via npx awal status or when wallet operations fail with authentication errors), use the npx awal CLI to authenticate.

If you have access to email, you can authenticate the wallet yourself, otherwise you'll need to ask your human to give you an email address and to tell you the OTP code they receive.

Authentication Flow

Authentication uses a two-step email OTP process:

Step 1: Initiate login

npx awal@2.0.3 auth login <email>

This sends a 6-digit verification code to the email and outputs a flowId.

Step 2: Verify OTP

npx awal@2.0.3 auth verify <flowId> <otp>

Use the flowId from step 1 and the 6-digit code from the user's email to complete authentication. If you have the ability to access the user's email, you can read the OTP code, or you can ask your human for the code.

Input Validation

Before constructing the command, validate all user-provided values to prevent shell injection:

  • email: Must match a standard email format (^[^\s;|&]+@[^\s;|&]+$). Reject if it contains spaces, semicolons, pipes, backticks, or other shell metacharacters.
  • flowId: Must be alphanumeric (^[a-zA-Z0-9_-]+$).
  • otp: Must be exactly 6 digits (^\d{6}$).

Do not pass unvalidated user input into the command.

Checking Authentication Status

npx awal@2.0.3 status

Displays wallet server health and authentication status including wallet address.

Example Session

# Check current status
npx awal@2.0.3 status

# Start login (sends OTP to email)
npx awal@2.0.3 auth login user@example.com
# Output: flowId: abc123...

# After user receives code, verify
npx awal@2.0.3 auth verify abc123 123456

# Confirm authentication
npx awal@2.0.3 status

Available CLI Commands

Command Purpose
npx awal@2.0.3 status Check server health and auth status
npx awal@2.0.3 auth login <email> Send OTP code to email, returns flowId
npx awal@2.0.3 auth verify <flowId> <otp> Complete authentication with OTP code
npx awal@2.0.3 balance Get USDC wallet balance
npx awal@2.0.3 address Get wallet address
npx awal@2.0.3 show Open the wallet companion window

JSON Output

All commands support --json for machine-readable output:

npx awal@2.0.3 status --json
npx awal@2.0.3 auth login user@example.com --json
npx awal@2.0.3 auth verify <flowId> <otp> --json