Backend ENVs: Integrations

The following ENVs are used for different integrations. Some work with various microservices (when the variable begins with MICROSERVICE) while others are contained within the application.

More info on Blockscout Rust MicroServices is available in the blockscout-rs Github Repo.

Time format

Can be set in format 1h for 1 hour, 1m for 1 minute, 1s or 1 for 1 second, 1ms for 1 millisecond

Note: Before release 5.1.2, all environment variables of time format supported only integers in seconds (without dimensions) as values.

Smart-contract verifier / Eth Bytecode DB

Connecting to the smart contract verification service

Variable	Description	Parameters
MICROSERVICE_SC_VERIFIER_ENABLED	If true, integration with Rust smart-contract verifier is enabled. true is the default value starting from version 6.4.0. Implemented in #5860	Version: v5.1.3+ Default: true Applications: API
MICROSERVICE_SC_VERIFIER_URL	URL of Rust smart-contract verifier. Implemented in #5860	Version: v5.1.3+ Default: https://eth-bytecode-db.services.blockscout.com/ Applications: API
MICROSERVICE_ETH_BYTECODE_DB_INTERVAL_BETWEEN_LOOKUPS	Minimal time after unsuccessful check of smart contract's sources in Eth Bytecode DB. Implemented in #7187.	Version: v5.1.3+ Default: 10m Applications: API
MICROSERVICE_SC_VERIFIER_TYPE	Type of smart contract microservice could be either eth_bytecode_db or sc_verifier. Implemented in #7187	Version: v5.1.3+ Default: sc_verifier Applications: API
MICROSERVICE_ETH_BYTECODE_DB_MAX_LOOKUPS_CONCURRENCY	Maximum amount of concurrent requests for fetching smart contract's sources in Eth Bytecode DB. Implemented in #8472	Version: v5.3.0+ Default: 10 Applications: API
MICROSERVICE_SC_VERIFIER_API_KEY	API key for verification that metadata sent to verifier microservice from a trusted source. Implemented in #8750	Version: v5.3.2+ Default: (empty) Applications: API

Sol2Uml

Sol2Uml is a visualization tool for Solidity contracts.

Scroll down on the contract page to find the View UML diagram link

Contract visualization example

Variable	Description	Parameters
MICROSERVICE_VISUALIZE_SOL2UML_ENABLED	If true, integration with Rust sol2uml visualizer is enabled. Implemented in #6401	Version: v5.1.3+ Default: (empty) Applications: API
MICROSERVICE_VISUALIZE_SOL2UML_URL	URL of Rust visualizer. Implemented in #6401	Version: v5.1.3+ Default: (empty) Applications: API

Sig-provider

The Sig-provider microservice is used by Blockscout to display decoded transaction data on transaction pages and to determine transaction actions

Variable	Description	Parameters
MICROSERVICE_SIG_PROVIDER_ENABLED	If true, integration with Rust sig-provider service is enabled. Implemented in #6541	Version: v5.1.3+ Default: (empty) Applications: API
MICROSERVICE_SIG_PROVIDER_URL	URL of Rust sig-provider service. Implemented in #6541	Version: v5.1.3+ Default: (empty) Applications: API

Blockscout ENS

Blockscout ENS provides indexed data of domain name service for blockscout instances. Learn more.

Variable	Description	Parameters
MICROSERVICE_BENS_ENABLED	If true, integration with Blockscout ENS service is enabled. Implemented in #8972	Version: v5.4.0+ Default: (empty) Applications: API
MICROSERVICE_BENS_URL	URL of Blockscout ENS service. Implemented in #8972	Version: v5.4.0+ Default: (empty) Applications: API

Blockscout Account Abstraction

Enables the User Ops Indexer, a service designed to index, decode and serve user operations as per the ERC-4337 standard

Variable	Description	Parameters
MICROSERVICE_ACCOUNT_ABSTRACTION_ENABLED	If true, integration with Blockscout Account Abstraction service is enabled. Implemented in #9145	Version: v6.1.0+ Default: (empty) Applications: API
MICROSERVICE_ACCOUNT_ABSTRACTION_URL	URL of Blockscout ENS service. Implemented in #9145	Version: v6.1.0+ Default: (empty) Applications: API

Tx Interpreter (Summary) Service

Variable	Description	Parameters
MICROSERVICE_TRANSACTION_INTERPRETATION_ENABLED	If true, integration with Tx Interpreter Service is enabled. Implemented in #8957	Version: v5.4.0+ Default: (empty) Applications: API
MICROSERVICE_TRANSACTION_INTERPRETATION_URL	URL of Tx Interpreter Service. Implemented in #8957	Version: v5.4.0+ Default: (empty) Applications: API

Metadata Service

Variable	Description	Parameters
MICROSERVICE_METADATA_ENABLED	If true, integration with Metadata Service is enabled. Implemented in #9706	Version: v6.4.0+ Default: (empty) Applications: API
MICROSERVICE_METADATA_URL	URL of Metadata Service. Implemented in #9706	Version: v6.4.0+ Default: (empty) Applications: API
MICROSERVICE_METADATA_PROXY_REQUESTS_TIMEOUT	Timeout for request forwarding from /api/v2/proxy/metadata/. Implemented in #11656	Version: v7.0.0+ Default: 30s Applications: API

Multichain Search Service

Multichain Search is the single point of search of the data in the all blockchains.

Variable	Description	Parameters
MICROSERVICE_MULTICHAIN_SEARCH_URL	Multichain Search Service API URL. Integration is enabled, if this variable value contains valid URL. Implemented in #11139	Version: v6.10.0+ Default: (empty) Applications: API, Indexer
MICROSERVICE_MULTICHAIN_SEARCH_API_KEY	Multichain Search Service API key. Implemented in #11139	Version: v6.10.0+ Default: (empty) Applications: API, Indexer
MICROSERVICE_MULTICHAIN_SEARCH_ADDRESSES_CHUNK_SIZE	Chunk size of addresses while exporting to Multichain Search DB. Implemented in #12377	Version: v8.1.0+ Default: 7000 Applications: API, Indexer
MIGRATION_BACKFILL_MULTICHAIN_SEARCH_BATCH_SIZE	Batch size of backfilling Multichain Search Service DB. Implemented in #11139	Version: v6.10.0+ Default: 10 Applications: Indexer
INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_FETCHER	If true, retry multichain search export fetcher doesn't run. Implemented in #12377.	Version: v8.1.0+ Default: false Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_BATCH_SIZE	Batch size for retry multichain search export fetcher. Implemented in #12377.	Version: v8.1.0+ Default: 10 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_CONCURRENCY	Concurrency for retry multichain search export fetcher. Implemented in #12377.	Version: v8.1.0+ Default: 10 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_ENQUEUE_BUSY_WAITING_TIMEOUT	Timeout before new attempt to append item to retry multichain search export queue if it's full. Time format. Implemented in #12377.	Version: v8.1.0+ Default: 1s Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_MAX_QUEUE_SIZE	Maximum size of retry multichain search export queue. Implemented in #12377.	Version: v8.1.0+ Default: 1000 Applications: Indexer

TAC Operation Lifecycle Service

Variable	Description	Parameters
MICROSERVICE_TAC_OPERATION_LIFECYCLE_URL	TAC Operation Lifecycle Service API URL. Integration is enabled, if this variable value contains valid URL. Implemented in #12367	Version: v8.1.0+ Default: (empty) Applications: API
MICROSERVICE_TAC_OPERATION_LIFECYCLE_ENABLED	If false, TAC Operation Lifecycle Service integration is disabled despite MICROSERVICE_TAC_OPERATION_LIFECYCLE_URL. Implemented in #12367	Version: v8.1.0+ Default: true Applications: API

Sourcify

Allows for contract verification via Sourcify

Variable	Description	Parameters
SOURCIFY_INTEGRATION_ENABLED	Enables or disables verification of contracts through Sourcify.	Version: v5.1.3+ Default: false Applications: API
SOURCIFY_SERVER_URL	URL to Sourcify backend.	Version: v3.7.0+ Default: https://sourcify.dev/server Applications: API
SOURCIFY_REPO_URL	URL to Sourcify repository with fully verified contracts.	Version: v3.7.0+ Default: https://repo.sourcify.dev/contracts/ Before v3.7.1: https://repo.sourcify.dev/contracts/full_match/ Applications: API

Tenderly

Variable	Description	Parameters
SHOW_TENDERLY_LINK	if true, Open in Tenderly" button is displayed on the transaction page. Implemented in #4656	Version: v4.0.0+ Default: (empty) Applications: API
TENDERLY_CHAIN_PATH	Chain path to the transaction in Tenderly. For instance, for transactions in xDai, Tenderly link looks like this https://dashboard.tenderly.co/tx/xdai/0x..., then TENDERLY_CHAIN_PATH =/xdai. Implemented in #4656	Version: v4.0.0+ Default: (empty) Applications: API

Datadog

Integration with the Datadog monitoring and analytics tools

Variable	Description	Parameters
DATADOG_HOST	Host configuration setting for Datadog integration.	Version: all Default: (empty) Applications: API
DATADOG_PORT	Port configuration setting for Datadog integration.	Version: all Default: (empty) Applications: API

Spandex

Spandex is a library for tracing Elixir applications

Variable	Description	Parameters
SPANDEX_BATCH_SIZE	Spandex and Datadog configuration setting.	Version: all Default: (empty) Applications: API
SPANDEX_SYNC_THRESHOLD	Spandex and Datadog configuration setting.	Version: all Default: (empty) Applications: API

Analytics

Variables for adding Mixpanel and/or amplitude for visitor analytics.

Variable	Description	Parameters
MIXPANEL_TOKEN	Mixpanel project token.	Needs Recompile: ☑️ Version: v5.0.0+ Default: (empty) Applications: API
MIXPANEL_URL	Url to use Mixpanel with proxy (Collection via Proxy).	Needs Recompile: ☑️ Version: v5.0.0+ Default: (empty) Applications: API
AMPLITUDE_API_KEY	Amplitude API key.	Needs Recompile: ☑️ Version: v5.0.0+ Default: (empty) Applications: API
AMPLITUDE_URL	Url to use Amplitude with proxy (Use Domain Proxy to Relay Events).	Needs Recompile: ☑️ Version: v5.0.0+ Default: (empty) Applications: API

Solidityscan

Enables security scoring for smart contracts

Variable	Description	Parameters
SOLIDITYSCAN_PLATFORM_ID	Internal platform id in Solidityscan. Implemented in #10473	Version: v6.8.0+ Default: 16 Applications: API
SOLIDITYSCAN_CHAIN_ID	Internal chain id in Solidityscan. It may not match with actual chain ID. Implemented in #8908	Version: v5.3.3+ Default: (empty) Applications: API
SOLIDITYSCAN_API_TOKEN	API token for usage of Solidityscan API.	Version: v5.3.3+ Default: (empty) Applications: API

Noves.fi

Adds additional transaction details such as summaries and asset flows. More info here.

Variable	Description	Parameters
NOVES_FI_BASE_API_URL	Noves.fi API base URL. Implemented in #9056.	Version: v6.1.0+ Default: https://blockscout.noves.fi Applications: API
NOVES_FI_CHAIN_NAME	Noves.fi API chain name. Implemented in #9056.	Version: v6.1.0+ Default: (empty) Applications: API
NOVES_FI_API_TOKEN	Noves.fi API token. Implemented in #9056.	Version: v6.1.0+ Default: (empty) Applications: API

MUD framework

The MUD framework provides standardized tools for data retrieval, libraries and more.

Variable	Description	Parameters
MUD_INDEXER_ENABLED	If true, integration with MUD is enabled. Implemented in #9869	Version: v6.6.0+ Default: (empty) Applications: API
MUD_DATABASE_URL	MUD indexer DB connection URL.	Version: v6.6.0+ Default: value from DATABASE_URL Applications: API
MUD_POOL_SIZE	MUD indexer DB pool_size	Version: v6.6.0+ Default: 50 Applications: API

Xname app

Enables Xname app integration, which includes humanity score displayment.

Variable	Description	Parameters
XNAME_BASE_API_URL	Xname API base URL. Implemented in #11010.	Version: v6.9.2+ Default: https://gateway.xname.app Applications: API
XNAME_API_TOKEN	Xname API token. Implemented in #11010.	Version: v6.9.2+ Default: (empty) Applications: API

Stylus contract verifier

Connecting to the Stylus smart contract verification service

Variable	Description	Parameters
MICROSERVICE_STYLUS_VERIFIER_URL	URL of Stylus verifier. If set valid url and CHAIN_TYPE=arbitrum, integration with Stylus verifier is enabled. Implemented in #11183	Version: v6.10.0+ Default: (empty) Applications: API