USDC gas control plane

Kestrel Gas

Sponsor agent transactions, enforce per-agent gas limits and reconcile every fee across Circle Gas Station and Paymaster modes.

Arc Testnet v0.8.0Gas denominated in USDCHardfork-aware · policy first · receipt after execution
Demo workspace is loaded in read-only mode. Connect an Arc API key to run sponsorship checks and save gas policies.
Sponsored gas0.184 USDC
Sponsored tx23
Denied tx2
Active policies4
Testnet release gate

v0.8.0 hardfork readiness

Sponsorship and paymaster flows treat the Arc Testnet v0.8.0 hardfork as an operations checkpoint: validate RPC, WSS, trace capture and retry behavior before recording production-style proof.

ActivationSep 3, 2026 · 15:00 UTCcheckTestnet v0.8.0 becomes a release-window checkpoint for sponsorship checks.
RPCHTTP + WSScheckSmoke tests should validate both polling and subscription paths after the fork.
TraceDebug / tracecheckFailed sponsored calls need trace evidence before they affect reputation or access.
RetriesFail closedcheckTemporary network failures stay retryable instead of becoming false settlement claims.
Sponsorship simulator

Run policy check

Agent policy

Limits & payment mode

Today 0.042 USDCThis month 0.184 USDC
Gas ledger

Sponsored transaction reporting

AgentModeActionEstimatedActualStatusDecision
DataHarvester-ProGas StationEscrow release0.008 USDC0.0074 USDCconfirmedWithin policy limits
TradeBot-AlphaPaymasterContract deploy0.120 USDC—deniedPer transaction limit exceeded