Agent Wallet
Governed USDC wallet for AI agents — policy gates, spending caps, and Ed25519-signed receipts.
Runs on your machine from its package; the steps are below.
What it does
- Reads
- Writes
- High impact
At most: moves money, runs code or commands, deletes data, or sends messages for you.
What it costs
FreeOdel charges nothing per call. The publisher may charge for its own service.
Runs locally over stdio
This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).
Run
npx -y dingdawg-agent-wallet
MCP client config
{
"mcpServers": {
"agent-wallet": {
"command": "npx",
"args": [
"-y",
"dingdawg-agent-wallet"
]
}
}
}dingdawg-agent-wallet — live demo
Shows governed agent wallet enforcement in action: allow, deny, step-up, allowlist — all in 5 seconds. No API keys. No blockchain required.
What it demonstrates
▶ provision_wallet
wallet_id: demo-wallet-abc123
daily_cap: $200 USDC
per_call_cap: $100 USDC
▶ governed_spend — $25 USDC (allowed)
✓ AUTHORIZED
receipt_id: 6aba84a6-...
daily_remaining: $175 USDC
next_step: wallet.sendToken({ assetId: "usdc", amount: "25", destination: "0xVendorABC123" })
▶ governed_spend — $150 USDC (exceeds per-call cap)
✗ DENIED
reason: Amount 150 USDC exceeds per-call cap 100 USDC
receipt_id: cd7a7aa8-... (denial is logged too)
▶ governed_spend — $75 USDC (step-up required)
⚠ STEP-UP REQUIRED
reason: Amount 75 USDC > step-up threshold 50 USDC — MFA required
fix: Pass approval_token from your authorization flow
▶ governed_spend — unknown recipient (not in allowlist)
✗ DENIED
reason: Recipient 0xUnknownAddress not in allowlist
▶ wallet_audit
chain_verified: true ✓
total_receipts: 5
[17:02:18] DENY $10 USDC governed_spend
[17:02:18] DENY $75 USDC governed_spend
[17:02:18] DENY $150 USDC governed_spend
[17:02:18] ALLOW $25 USDC governed_spend
[17:02:18] ALLOW provision_wallet
Every action — allow AND deny — produces an immutable receipt. chain_verified: true means the full chain is tamper-evident — any modification is detectable.
Run it
git clone https://github.com/DingDawg/agent-wallet-demo
cd agent-wallet-demo
npm install
node demo.mjs
The package
dingdawg-agent-wallet — 5 MCP tools that wrap any agent wallet with policy enforcement and an immutable audit trail.
npm install dingdawg-agent-wallet
| Tool | What it does |
|---|---|
provision_wallet | Create wallet with spend policy (daily cap, per-call cap, allowlist) |
governed_spend | Policy check → authorize → immutable receipt |
governed_receive | Accept payment with tamper-evident receipt |
wallet_policy | Update limits and allowlists at runtime |
wallet_audit | Full receipt chain — chain_verified: true |
Coinbase AgentKit gives your agent a wallet. DingDawg gives it a conscience.
Why this matters
AI agents can now hold USDC and spend autonomously. The infrastructure exists. What doesn't: who enforces what the agent is allowed to spend, on what, for whom — and proves it happened correctly.
governed_spendauthorizes then returns the exactagentkit_callSDK method to execute on-chain- Every denial is logged — you can prove what your agent didn't do
chain_verified: truemeans the audit trail is tamper-evident — any modification is detectable
