@phantom/client

HTTP client for Phantom Wallet API.

Installation

npm install @phantom/client
# or
yarn add @phantom/client

Usage

The PhantomClient class provides a fully typed HTTP client for interacting with Phantom's wallet service API.

Basic Usage (Without Authentication)

import { PhantomClient } from "@phantom/client";

const client = new PhantomClient({
  apiBaseUrl: "https://api.phantom.app/v1/wallets",
  organizationId: "your-org-id",
});

// Use the client for public endpoints
const wallets = await client.getWallets();

With Authentication (Using a Stamper)

The client accepts an optional stamper parameter that can be used to sign requests. You can use the @phantom/api-key-stamper package for API key authentication:

import { PhantomClient } from "@phantom/client";
import { ApiKeyStamper } from "@phantom/api-key-stamper";

// Create a stamper for authentication
const stamper = new ApiKeyStamper({
  apiSecretKey: "your-base58-encoded-secret-key",
});

// Create client with authentication
const client = new PhantomClient(
  {
    apiBaseUrl: "https://api.phantom.app/v1/wallets",
    organizationId: "your-org-id",
  },
  stamper,
);

// Now you can use authenticated endpoints
const wallet = await client.createWallet("My Wallet");

Available Methods

Wallet Management

• createWallet(walletName?: string) - Create a new wallet with default addresses for Solana, Ethereum, Bitcoin, and Sui
• getWallets(limit?, offset?) - List wallets for the organization with pagination support
• getWalletAddresses(walletId, derivationPaths?) - Get addresses for a wallet, optionally specifying custom derivation paths

Transaction & Signing

• signAndSendTransaction(params) - Sign and optionally submit a transaction to the blockchain
• signMessage(params) - Sign a message with a wallet's private key

// Sign message
await client.signMessage({
  walletId: "wallet_123",
  message: "base64url_encoded_message",
  networkId: NetworkId.SOLANA_MAINNET,
});

// Sign transaction
await client.signAndSendTransaction({
  walletId: "wallet_123",
  transaction: "base64url_encoded_transaction",
  networkId: NetworkId.SOLANA_MAINNET,
});

Organization Management

• getOrganization(organizationId) - Get organization details by ID
• createOrganization(name, users) - Create a new organization with custom users
• getWalletWithTag(params) - Get a wallet by tag from an organization
• grantOrganizationAccess(params) - Grant access permissions to an organization

Authentication Management

• createAuthenticator(params) - Create a new authenticator for a user in an organization
• deleteAuthenticator(params) - Delete an authenticator from a user in an organization

Network Support

The client supports multiple blockchain networks through CAIP-2 identifiers. For a complete list of supported networks including Solana, Ethereum, Polygon, Base, Arbitrum, Monad, and more, see the Network Support section in the main README.

import { NetworkId } from "@phantom/client";

// Example: Solana
await client.signAndSendTransaction({
  walletId,
  transaction,
  networkId: NetworkId.SOLANA_MAINNET,
});

// Example: Ethereum
await client.signAndSendTransaction({
  walletId,
  transaction,
  networkId: NetworkId.ETHEREUM_MAINNET,
});

Custom Stamper Implementation

You can implement your own stamper for custom authentication methods:

class CustomStamper {
  async stamp(config: AxiosRequestConfig): Promise<AxiosRequestConfig> {
    // Add your custom authentication logic here
    config.headers = config.headers || {};
    config.headers["Authorization"] = "Bearer your-token";
    return config;
  }
}

const client = new PhantomClient(config, new CustomStamper());

Organization and Authentication Examples

// Get organization details
const organization = await client.getOrganization("org-id");

// Create organization with custom users
const newOrg = await client.createOrganization("My Organization", [
  {
    username: "admin-user",
    role: "ADMIN",
    authenticators: [
      {
        authenticatorName: "Primary Auth",
        authenticatorKind: "keypair",
        publicKey: "base64url-encoded-public-key",
        algorithm: "Ed25519",
      },
      {
        authenticatorName: "OIDC Auth",
        authenticatorKind: "oidc",
        jwksUrl: "https://issuer.com/.well-known/jwks.json",
        idTokenClaims: {
          sub: "user-subject-id",
          iss: "https://issuer.com",
        },
      },
    ],
  },
]);

// Get wallet by tag
const taggedWallet = await client.getWalletWithTag({
  organizationId: "org-id",
  tag: "demo-wallet",
  derivationPaths: ["m/44'/501'/0'/0'"],
});

// Create an authenticator for a user
const authenticator = await client.createAuthenticator({
  organizationId: "org-id",
  username: "user-123",
  authenticatorName: "New Auth",
  authenticator: {
    authenticatorName: "New Auth",
    authenticatorKind: "keypair",
    publicKey: "base64url-encoded-public-key",
    algorithm: "Ed25519",
  },
});

// Delete an authenticator
await client.deleteAuthenticator({
  organizationId: "org-id",
  username: "user-123",
  authenticatorId: "auth-id",
});

TypeScript Support

This package is written in TypeScript and provides full type definitions for all API methods and responses. All request parameter types are imported from @phantom/openapi-wallet-service.