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Ethereum Sepolia Testnet

eip155:11155111Ethereum / EVMExtended
Get API key
Blocks indexed11.4MFull archive
Archive size9.7 TiBUncompressed block data
Block time12 sAverage over July 2026
New blocks / day7.0KAverage over July 2026
Blocks added216.6KDuring July 2026
Archive growth353 GiBAdded during July 2026

Pull a block stream in one command

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

grpcurl -H "authorization: Bearer $SF_API_TOKEN" \
  -d '{"start_block_num": -100, "final_blocks_only": true}' \
  sepolia.eth.streamingfast.io:443 \
  sf.firehose.v2.Stream/Blocks

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

Providers & endpoints

StreamingFast

streamingfast.io
  • Substreamssepolia.eth.streamingfast.io:443
  • Firehosesepolia.eth.streamingfast.io:443

Pinax

pinax.network
  • Substreamssepolia.substreams.pinax.network:443
  • Firehosesepolia.firehose.pinax.network:443
First block0Lowest streamable height
Block modelExtendedsf.ethereum.type.v2.Block
ServicesSubstreams · FirehoseNative token: ETH

Resources

sepolia.etherscan.iosepolia.otterscan.ioChain documentationBlock protobuf schema