| Stellar network and Soroban RPC | All contracts and settlement | No purchases, deposits or settlement until it recovers; funds stay in contracts |
| Circle USDC on Stellar | Settlement asset | Protocol balances are USDC; a USDC failure affects every balance |
| Circle CCTP | Moving USDC between EVM networks and Stellar | Cross-network transfers wait; Stellar deposits unaffected. Burned USDC is never lost: it is minted once Circle attests. |
| Circle attestation service (Iris) | Attesting each CCTP burn, and Circle's Forwarding Service for mints on EVM | Transfers wait until it responds |
| Coinbase Developer Platform paymaster | Paying gas for Base user operations | Pimlico takes over automatically |
| Pimlico paymaster and bundler | Fallback on Base; the paymaster for other EVM chains | On Base, Coinbase continues; elsewhere, sponsored transactions wait |
| Live market data | Rates for quotes and settlement | Quotes refused; settlement waits |
| Historical market data | Pricing model inputs | Quotes refused for pairs with stale history |
| US Treasury rate | Pricing input | Last cached value used |
| OpenZeppelin Channels | Submitting user transactions and paying their fees | A BlockFinaX fee account takes over |
| BlockFinaX fee accounts | Fallback for user transactions; platform calls such as wallet deployment and the Circle mint | Transactions wait until restored if Channels is also unavailable |
| WebAuthn (browser and device passkeys) | User signing | Users cannot approve until their device works |
| OpenZeppelin smart account contracts (stellar-accounts 0.8.0: account code, WebAuthn verifier, threshold and spending-limit policies) | Business accounts and their member roles | Business accounts cannot approve until they recover; personal wallets are unaffected |
| Email delivery, Google sign-in | Sign-in | Users sign in with the other method or a passkey |