{"service":"DLL Execution","current_chain":"Base","mode":"read-only_analysis","supported_inputs":["transaction_hash","transaction_hashes","unsigned_transaction_candidate","transaction_hash_with_optional_expectation"],"current_capabilities":["service_health","capability_discovery","openapi_schema","base_transaction_read","batch_transaction_cost_analysis","base_execution_cost_benchmark","base_benchmark_collector","pricing_metadata","payment_metadata","execution_preflight","execution_verification"],"explicit_non_capabilities":["transaction_execution","transaction_signing","private_key_storage","fund_custody","asset_control","gas_sponsorship","paymaster","relayer","automatic_routing","automatic_execution","wallet_history","time_range_scanning","indexer"],"execution_preflight":{"name":"execution_preflight","method":"POST","path":"/v2/execution/preflight","chain":"Base Mainnet","chain_id":"8453","input":"unsigned_transaction_candidate","read_only":true,"paid":false,"x402_required":false,"outputs":["simulation","l2_execution_cost_estimate","policy","judgment","evidence"],"judgment_states":["PASS","CAUTION","BLOCK","INDETERMINATE"],"limitations":["No signing, broadcasting, custody or autonomous execution.","No profitability or investment judgment.","L1 data fee and total transaction cost are unavailable, not zero.","Ordinary successful assessments remain CAUTION because total cost is incomplete.","Simulation does not guarantee future transaction success or prove ownership of from."]},"execution_verification":{"name":"execution_verification","method":"POST","path":"/v2/execution/verify","chain":"Base Mainnet","chain_id":"8453","input":"transaction_hash_with_optional_expectation","read_only":true,"paid":false,"x402_required":false,"outputs":["observed_outcome","verification","realized_l2_execution_cost","evidence"],"verification_states":["VERIFIED","CONTRADICTED","INDETERMINATE"],"limitations":["No signing, broadcasting, custody or execution authorization.","Verification applies only to explicit checks, not actor identity, causality or economic value.","Canonicality and inclusion do not establish finality.","L1 fee is available only when observed; total execution cost remains unavailable.","No persistent transaction history or assessment linkage."]},"commercial":{"pricing_available":true,"payment_metadata_available":true,"payment_enforcement":true,"payment_status":"live","x402_supported":true,"x402_scheme":"upto","payment_network_id":"eip155:8453","mainnet_implementation_supported":true,"mainnet_payment_enforcement":true,"billing_unit":"valid_analysis","free_trial_valid_analyses":3}}