From 53126d98d2e614559963fd6eaf10459b9525fb25 Mon Sep 17 00:00:00 2001
From: POA <33550681+poa@users.noreply.github.com>
Date: Wed, 10 Sep 2025 16:06:12 +0400
Subject: [PATCH] Add Alt-DA env variable for OP batch indexer

---
 setup/env-variables/backend-envs-chain-specific.mdx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/setup/env-variables/backend-envs-chain-specific.mdx b/setup/env-variables/backend-envs-chain-specific.mdx
index cfc21a6..5c1dd1f 100644
--- a/setup/env-variables/backend-envs-chain-specific.mdx
+++ b/setup/env-variables/backend-envs-chain-specific.mdx
@@ -165,6 +165,7 @@ Supported together with ENV setting `CHAIN_TYPE=optimism`
 | `INDEXER_OPTIMISM_L1_SYSTEM_CONFIG_CONTRACT`         | The address of `SystemConfig` contract on L1 required for almost all Optimism fetchers. Implemented in [#10199](https://github.com/blockscout/blockscout/pull/10199).                                                                                                                                                                                                                                                                                                                                                                                                         | Version: v6.8.0+ <br />Default: (empty) <br />Applications: Indexer                                      |
 | `INDEXER_OPTIMISM_L1_BATCH_BLOCKSCOUT_BLOBS_API_URL` | Defines a URL to Blockscout Blobs API to retrieve L1 blobs from that. Example for Sepolia: `https://eth-sepolia.blockscout.com/api/v2/blobs`. Implemented in [#9571](https://github.com/blockscout/blockscout/pull/9571).                                                                                                                                                                                                                                                                                                                                                     | Version: v6.3.0+ <br />Default: (empty) <br />Applications: Indexer                                      |
 | `INDEXER_OPTIMISM_L1_BATCH_CELESTIA_BLOBS_API_URL`   | Defines a URL to Celestia blobs indexer to retrieve L1 blobs from that. Example: `http://example.com/api/v1/celestia/blob`. Implemented in [#10199](https://github.com/blockscout/blockscout/pull/10199).                                                                                                                                                                                                                                                                                                                                                                     | Version: v6.8.0+ <br />Default: (empty) <br />Applications: Indexer                                      |
+| `INDEXER_OPTIMISM_L1_BATCH_ALT_DA_SERVER_URL`        | Defines a URL to Alt-DA server to retrieve L1 data from that. Example for Redstone: `https://da.redstonechain.com/get`. Implemented in [#13179](https://github.com/blockscout/blockscout/pull/13179).                                                                                                                                                                                                                                                                                                                                                                         | Version: master <br />Default: (empty) <br />Applications: Indexer                                       |
 | `INDEXER_OPTIMISM_L1_BATCH_BLOCKS_CHUNK_SIZE`        | Blocks chunk size to send batch RPC requests. Implemented in [#6980](https://github.com/blockscout/blockscout/pull/6980).                                                                                                                                                                                                                                                                                                                                                                                                                                                     | Version: v6.3.0+ <br />Default: `4` <br />Applications: Indexer                                          |
 | `INDEXER_OPTIMISM_L2_BATCH_GENESIS_BLOCK_NUMBER`     | L2 genesis block number. This is the first block of Optimism BedRock upgrade. Equals to 0 if the new chain starts being already upgraded. The block number can be found at [superchain registry](https://github.com/ethereum-optimism/superchain-registry/tree/main/superchain/configs). [Example](https://github.com/ethereum-optimism/superchain-registry/blob/main/superchain/configs/mainnet/op.yaml). Implemented in [#9260](https://github.com/blockscout/blockscout/pull/9260).                                                                                        | Version: v6.3.0+ <br />Default: (empty) <br />Applications: Indexer                                      |
 | `INDEXER_OPTIMISM_L1_OUTPUT_ORACLE_CONTRACT`         | The address of `L2OutputOracle` contract on L1 used to fetch output roots. Required for output roots indexing. Implemented in [#6980](https://github.com/blockscout/blockscout/pull/6980).                                                                                                                                                                                                                                                                                                                                                                                    | Version: v6.3.0+ <br />Default: (empty) <br />Applications: Indexer                                      |