Base Sepolia Testnet

eip155:84532Ethereum / EVMExtended

Pull a block stream in one command

Set $SF_API_TOKEN to a key from your dashboard, then run this against Base Sepolia Testnet.

grpcurl -H "authorization: Bearer $SF_API_TOKEN" \
  -d '{"start_block_num": -100, "final_blocks_only": true}' \
  basesepolia.firehose.pinax.network:443 \
  sf.firehose.v2.Stream/Blocks

Streams the 100 most recent blocks from Base Sepolia Testnet. Firehose reads a negative start_block_num as an offset back from chain head, so no head lookup is needed.

Providers & endpoints

Pinax

pinax.network

Substreamsbasesepolia.substreams.pinax.network:443
Firehosebasesepolia.firehose.pinax.network:443

First block0Lowest streamable height

Block modelExtendedsf.ethereum.type.v2.Block

ServicesSubstreams · FirehoseNative token: ETH

Resources

sepolia.basescan.org Chain documentation Block protobuf schema Archive Nodes 101