How an AI agent can validate wallet API behavior before application changes
This workflow gives an AI agent a defined job, a bounded set of records, and a result a person can review. The agent reads the relevant Crossmint context and matches it with Postman, applies the rules in the prompt, and keeps the source behind every recommendation. It returns a proposed handoff rather than taking consequential actions on its own.
Can an AI agent validate wallet API behavior before application changes?
Yes. Start with the scope, date range, decision rules, and fields that identify the right records. The agent can collect the evidence, compare states or sources, mark conflicts and missing data, and organize the result around the outcome above. A reviewer then checks the matches and judgment calls before approving messages, record updates, bookings, purchases, publishing, or other write actions. The guide below shows the records, boundaries, prompt, and handoff needed for this specific workflow.
Lock the collection to a test environment
Crossmint supplies wallet and transaction behavior. Postman supplies environments, request chaining, and assertions. Store credentials, base URL, network, test identity, wallet IDs, and asset IDs as variables. Add a preflight check that rejects production network values or an unapproved asset.
Example starter prompt
Turn Crossmint plan [source] into a Postman validation sequence for [flow]. Use [test network], [test identities], and no production assets.
Define variables, fixture setup, ordered requests, captured IDs, polling or event checks, state assertions, negative cases, and cleanup where possible. Add hard stops for production network or value. Use placeholders for secrets and do not execute requests.Assert the final state
An accepted request may remain pending or fail later. Capture the transaction ID and verify documented state transitions. Test duplicate submission, uncertain timeout, invalid identity, rejected authorization, and insufficient test balance. Preserve observed responses without exposing keys or sensitive identity data.
Questions this workflow answers
How do we test a wallet transaction flow without risking production assets or mistaking a pending request for success?
An agent can convert the approved flow into a Postman collection locked to a test network, test identities, and capped-value fixtures. Credentials, base URL, network, wallet IDs, and asset IDs live in an environment. A preflight script rejects production network values, unknown assets, or amounts above the allowed test limit before any state-changing request.
The run sets up or locates the wallet and identity, submits the action, captures request and transaction identifiers, then observes asynchronous states through documented polling or events. Assertions distinguish accepted, pending, confirmed, rejected, and failed. A successful HTTP response is not the final asset state. The evidence log records timestamps, network, transaction ID, and the observation that established completion.
Negative cases should include invalid identity, rejected authorization, insufficient test balance, duplicate submission, malformed payload, and a timeout whose outcome is uncertain. A retry must inspect prior transaction or idempotency state before sending again. Cleanup is documented where possible, but irreversible test-network actions remain labeled rather than hidden.
An engineer reviews variables, safeguards, request order, assertions, and redaction before execution. The agent returns the collection plan and source links; it does not run transactions. Exported evidence omits keys and sensitive identity data. This proves the state model under controlled conditions and makes the boundary between test and production visible at every step.
The collection should fail closed if the environment, network, wallet identity, or maximum test value does not match the approved fixture. A pre-request check can make those boundaries visible before any state-changing call. Assertions then follow the resource beyond the initial response: capture the operation identifier, observe pending state, verify the eventual result, and test how an invalid signature or repeated submission is reported. Cleanup and residual test assets are recorded even when the transaction fails, because partial state may still exist.
Expected handoff
Return the collection structure, environment variables, safeguards, fixture plan, assertions, negative cases, and evidence log. Include source links and identify which outcomes require manual confirmation in the Crossmint test environment.