Default config.json file with basic configuration

{
  "entryPoints": [
    "0x9b5d240EF1bc8B4930346599cDDFfBD7d7D56db9"
  ],
  "relayers": [
    "test test test test test test test test test test test junk",
    "0x0101010101010101010101010101010101010101010101010101010101010101"
  ],
  "rpcEndpoint": "http://localhost:8545"
}

• entryPoints: string[] - Array of supported ERC-4337 entry point contract addresses (required)
• relayers: string[] - Private keys of relayers. One bundler can have multiple relayers (required)
• beneficiary: string - Address of beneficiary. If not set, relayers address will be used
• rpcEndpoint: string - Chain's RPC endpoint (required)
• minInclusionDenominator: number - Parameter for EIP-4337 inclusion rules (default: 10)
• throttlingSlack: number - Throttling slack (default: 10)
• banSlack: number - Banning slack (default: 10)
• minSignerBalance: BigNumberish - If the balance of a relayer is lower than this value, that relayer will be beneficiary even if beneficiary param is set (default: 0.1 ETH in wei)
• minStake: BigNumberish - Minimum required stake for entities (factories, paymasters, account) (default: 0.01 ETH in wei)
• minUnstakeDelay: number - Minimum unstaking delay period for entities (default: 0)
• receiptLookupRange: number - Limits the block range of getUserOperationByHash and getUserOperationReceipt. If requests to those endpoints are timing out, reduce this value (default: 1024)
• etherscanApiKey: string - Etherscan API key (used for fetching gas prices) (default: "")
• conditionalTransactions: boolean - Bundles will be submitted as conditional transactions. See EIP-7796 (default: false)
• rpcEndpointSubmit: string - Optional separate RPC endpoint used only for bundle submission
• gasPriceMarkup: number - Adds markup on reported gas price via skandha_getGasPrice (in bps) (default: 0, example: 10000 = 100.00%)
• enforceGasPrice: boolean - Do not bundle userops with low gas prices (default: false)
• enforceGasPriceThreshold: number - Gas price threshold in bps. When set to 500, then the userop's gas price is allowed to be 5% lower than the networks gas prices (default: 1000)
• eip2930: boolean - Enables eip-2930 (default: false)
• useropsTTL: number - Userops TTL in seconds. After TTL you can replace a userop without increasing gas fees (default: 300)
• whitelistedEntities: { "paymaster": [], "account": [], "factory": [], external: [] } - Entities that bypass stake and opcode validation
• bundleGasLimitMarkup: number - Adds some amount of gas to bundle's estimated gas limit (default: 25000)
• relayingMode: "merkle" | "flashbots" | "classic" | "kolibri" | "echo" | "fastlane" - Submit bundles via different relayers (default: classic)
• bundleInterval: number - Interval of bundling in seconds (default: 10)
• bundleSize: number - Max bundle size (default: 4 userops)
• pvgMarkup: number - Adds markup on PVG (default: 0)
• canonicalMempoolId: string - Canonical mempool id (default: "")
• canonicalEntryPoint: string - Canonical entry point (default: "")
• gasFeeInSimulation: boolean - Add gas fee in simulated transactions (may be required for some rpc providers) (default: false)
• skipBundleValidation: boolean - Skip bundle validation (default: false)
• userOpGasLimit: number - Bundler won't accept userops with higher gas limit (default: 25000000)
• bundleGasLimit: number - Max gas limit of a bundle (default: 25000000)
• merkleApiURL: string - API URL of (https://merkle.io/) (default: "")
• kolibriAuthKey: string - Auth key for Kolibri (https://kolibrio.xyz/) (default: "")
• cglMarkup: number - Adds markup on CGL (default: 35000)
• vglMarkup: number - Adds markup on VGL (default: 0)
• echoAuthKey: string - Auth key for Echo (https://echo.chainbound.io/) (default: "")
• fastlaneValidators: string[] - Fastlane validators (https://x.com/ThogardPvP/status/1843652671259193355) (default: [])
• archiveDuration: number - After submission userops will stay in the mempool for this duration so that info on these userops are quickly accessible (default: 86400 in seconds)
• pvgMarkupPercent: number - Adds markup on PVG in bps (default: 0)
• cglMarkupPercent: number - Adds markup on CGL in bps (default: 0)
• vglMarkupPercent: number - Adds markup on VGL in bps (default: 3000)
• eip1559: boolean - Enables EIP-1559 (default: true)
• blockscoutUrl: string - URL of Blockscout API. Used by getUserOperationByHash and getUserOperationReceipt for historical data (default: "")
• blockscoutApiKeys: string[] - Blockscout API keys (default: [])

You can also set config params via ENV variables. ENV variables have higher priority than config.json file.

• SKANDHA_ENTRYPOINTS - entryPoints
• SKANDHA_RELAYERS - relayers (example: SKANDHA_RELAYERS=0x0101010101010101010101010101010101010101010101010101010101010101, 0x0101010101010101010101010101010101010101010101010101010101010102)
• SKANDHA_BENEFICIARY - beneficiary
• SKANDHA_RPC - rpcEndpoint
• SKANDHA_MIN_INCLUSION_DENOMINATOR - minInclusionDenominator
• SKANDHA_THROTTLING_SLACK - throttlingSlack
• SKANDHA_BAN_SLACK - banSlack
• SKANDHA_MIN_STAKE - minStake
• SKANDHA_MIN_UNSTAKE_DELAY - minUnstakeDelay
• SKANDHA_RECEIPT_LOOKUP_RANGE - receiptLookupRange
• SKANDHA_ETHERSCAN_API_KEY - etherscanApiKey
• SKANDHA_CONDITIONAL_TRANSACTIONS - conditionalTransactions
• SKANDHA_RPC_SUBMIT - rpcEndpointSubmit
• SKANDHA_GAS_PRICE_MARKUP - gasPriceMarkup
• SKANDHA_ENFORCE_GAS_PRICE - enforceGasPrice
• SKANDHA_ENFORCE_GAS_PRICE_THRESHOLD - enforceGasPriceThreshold
• SKANDHA_EIP2930 - eip2930
• SKANDHA_USEROPS_TTL - useropsTTL
• SKANDHA_WHITELISTED_ENTITIES - whitelistedEntities
• SKANDHA_BUNDLE_GAS_LIMIT_MARKUP - bundleGasLimitMarkup
• SKANDHA_RELAYING_MODE - relayingMode
• SKANDHA_BUNDLE_INTERVAL - bundleInterval
• SKANDHA_BUNDLE_SIZE - bundleSize
• SKANDHA_PVG_MARKUP - pvgMarkup
• SKANDHA_CANONICAL_MEMPOOL_ID - canonicalMempoolId
• SKANDHA_CANONICAL_ENTRY_POINT - canonicalEntryPoint
• SKANDHA_GAS_FEE_IN_SIMULATION - gasFeeInSimulation
• SKANDHA_SKIP_BUNDLE_VALIDATION - skipBundleValidation
• SKANDHA_USER_OP_GAS_LIMIT - userOpGasLimit
• SKANDHA_BUNDLE_GAS_LIMIT - bundleGasLimit
• SKANDHA_MERKLE_API_URL - merkleApiURL
• SKANDHA_KOLIBRI_AUTH_KEY - kolibriAuthKey
• SKANDHA_CGL_MARKUP - cglMarkup
• SKANDHA_VGL_MARKUP - vglMarkup
• SKANDHA_ECHO_AUTH_KEY - echoAuthKey
• SKANDHA_FASTLANE_VALIDATORS - fastlaneValidators
• SKANDHA_ARCHIVE_DURATION - archiveDuration
• SKANDHA_PVG_MARKUP_PERCENT - pvgMarkupPercent
• SKANDHA_CGL_MARKUP_PERCENT - cglMarkupPercent
• SKANDHA_VGL_MARKUP_PERCENT - vglMarkupPercent
• SKANDHA_EIP1559 - eip1559
• SKANDHA_BLOCKSCOUT_URL - blockscoutUrl
• SKANDHA_BLOCKSCOUT_API_KEYS - blockscoutApiKeys