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Avalanche C-Chain

eip155:43114Ethereum / EVMBase
Get API key
Blocks indexed83.3MFull archive
Archive size1.5 TiBUncompressed block data
Block time1.1 sAverage over July 2026
New blocks / day82.3KAverage over July 2026
Blocks added2.5MDuring July 2026
Archive growth89 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 Avalanche C-Chain.

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

Streams the 100 most recent blocks from Avalanche C-Chain. 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
  • Substreamsavalanche-mainnet.streamingfast.io:443
  • Firehoseavalanche-mainnet.streamingfast.io:443

Pinax

pinax.network
  • Substreamsavalanche.substreams.pinax.network:443
  • Firehoseavalanche.firehose.pinax.network:443
First block0Lowest streamable height
Block modelBasesf.ethereum.type.v2.Block
ServicesSubstreams · FirehoseNative token: AVAX

Resources

snowtrace.ioChain documentationBlock protobuf schemaArchive Nodes 101