Trying an Agent Wallet: What to Check When Creating It and Setting Limits

Getting started · Sources checked October 28, 2026. Based on documentation; no wallet was tested for this article.

Before giving an agent a wallet, answer two questions: who can authorize spending, and who can stop it if something goes wrong? This checklist supports reading documentation or exploring a test environment. It does not claim that the steps were completed in a particular product.

Start with the task, not the balance

For a task to buy data costing at most $1, define the test environment, allowed recipients, maximum amount, expiry and approval process first. Separate total budget from per-transaction cap: one limits cumulative spending, the other an individual payment.

flowchart LR A[Choose task and test environment] --> B[Create wallet or account] B --> C[Review keys and control] C --> D[Configure spending rules] D --> E[Test allowed and rejected requests] E --> F[Review records and revoke access]

Six things to check in order

Stage	Observe	Record
Access	Registration, available regions, SDK or CLI	Date, version and account type
Creation	Whether an account is created and networks available	Network and redacted address details
Control	Who holds keys and can set policies	Official descriptions and actual interface
Configuration	Whether amount, recipient and expiry can be set	Scope and saved result
Verification	Behavior for permitted and over-limit requests	Requests, status, errors and records
Exit	Whether permission can be revoked and when	Whether old permission still works

A testnet is not automatically free or available. Networks, test assets and restrictions vary. If a product does not support a test, record “not verified”; do not confuse unsupported with not found.

A local simulation exercise

This series provides payment_lab.py, which does not connect to a wallet. Its defaults are a $10 budget, $3 per-purchase approval threshold and one sample merchant. It illustrates rules, not capabilities of any real wallet. Run python3 -m unittest -v test_payment_lab to check allowed, over-limit, expired and timeout branches.

A local simulation cannot prove real signing, security isolation, on-chain state or third-party behavior. For a real wallet test, separately record product, version, environment, time, configuration, observed results and screenshots; protect private keys and access tokens.

Questions for the documentation

Are limits enforced by the signing layer, a smart contract, a server, or only by the agent itself?
Can an administrator, recovery process or another authority change the rule?
What happens to requests signed before the rule took effect?
Can users inspect and revoke permissions, and are there cached or pending requests after revocation?
What does the user see for an over-limit rejection, insufficient funds or network error?

There is no universal answer. Coinbase Agentic Wallet documentation and Circle Agent Wallets documentation are starting points; confirm the actual version and provider’s current descriptions.

Understanding who authorizes, where rules run, how to revoke and how failure is detected tells you more than a successfully created address alone.