Wallets

Wallets

Non-custodial MPC wallets for AI agents. Create, fund, and manage wallets with spending policies across multiple chains.

Overview

Sardis wallets are non-custodial MPC wallets powered by Turnkey. Private keys are never stored or accessible — all signing happens through MPC (Multi-Party Computation).

Each wallet is:

Non-custodial — Sardis never holds private keys
Policy-governed — Every wallet has a spending policy
Multi-chain — Supports Base, Polygon, Ethereum, Arbitrum, Optimism
Multi-token — USDC, USDT, EURC, PYUSD

Create a Wallet

from sardis import SardisClient

client = SardisClient(api_key="sk_...")

wallet = client.wallets.create(
    name="research-agent",
    chain="base",
    token="USDC",
    policy="Max $100/day, Max $25 per tx, only OpenAI and Anthropic"
)

print(wallet.id)       # "wal_abc123"
print(wallet.address)  # "0x..."
print(wallet.chain)    # "base"

import { SardisClient } from '@sardis/sdk';

const client = new SardisClient({ apiKey: 'sk_...' });

const wallet = await client.wallets.create({
  name: 'research-agent',
  chain: 'base',
  token: 'USDC',
  policy: 'Max $100/day, Max $25 per tx, only OpenAI and Anthropic',
});

console.log(wallet.id);      // "wal_abc123"
console.log(wallet.address); // "0x..."

Check Balance

balance = await client.wallets.get_balance(wallet.id)

print(balance.available)  # "95.00"
print(balance.held)       # "5.00"
print(balance.token)      # "USDC"
print(balance.chain)      # "base"

Fund a Wallet

Wallets can be funded via:

Direct deposit — Send USDC to the wallet address
Bank transfer (ACH) — Fund from a linked bank account
Coinbase Onramp — Fiat-to-crypto conversion

# Fund from linked bank account
result = await client.treasury.fund(
    wallet_id=wallet.id,
    amount=500,
    source="bank_account_token",
)

print(result.status)  # "pending"
print(result.eta)     # "1-2 business days"

List Wallets

wallets = await client.wallets.list()

for w in wallets:
    print(f"{w.name}: {w.address} ({w.chain})")

Update Policy

# Update spending policy
await client.wallets.update_policy(
    wallet_id=wallet.id,
    policy="Max $200/day, Max $50 per tx"
)

Archive a Wallet

# Archive wallet (soft delete)
await client.wallets.archive(wallet_id=wallet.id)

MCP Wallet Tools

Tool	Description
`sardis_create_wallet`	Create new MPC wallet with optional policy
`sardis_get_wallet`	Get wallet details by ID
`sardis_list_wallets`	List all wallets for current user
`sardis_get_balance`	Get wallet balance
`sardis_get_address`	Get deposit address for specific chain
`sardis_update_policy`	Update wallet spending policy
`sardis_check_policy`	Validate transaction against policy
`sardis_archive_wallet`	Archive inactive wallet

On this page