Related Servers

Each tool maps to a distinct action+resource: create a wallet, read balance, browse the catalog, spend credits (purchase), and top up credits (create_checkout). The purchase vs. create_checkout pair is the only adjacency, and their descriptions explicitly separate 'spend prepaid credits on a SKU' from 'start a Stripe top-up session', so misselection is unlikely.

Four of five names follow a clean verb_noun snake_case pattern (open_wallet, get_balance, list_catalog, create_checkout). 'purchase' breaks the pattern as a bare verb with no noun, and 'open_wallet' uses a different verb than the sibling 'create_checkout' for a create action, but overall the set reads consistently.

Five tools is a tight, well-scoped surface for a wallet/credits/catalog flow with no redundant endpoints. It is slightly thin (no history or lookup operations), which keeps it just under ideal rather than excessive.

The core lifecycle is covered: create wallet, check balance, list SKUs, purchase, and top up credits. Minor gaps remain — no transaction/purchase history, no way to recover a lost api_key, and no refund or wallet-management operations — but agents can complete the primary buy-credits-then-purchase workflow.