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Stellar Testnet

stellar:testnetsf.stellar.type.v1.BlockOther
Get API key
Blocks indexed3.9MFull archive
Archive size55 GiBUncompressed block data
Block time5.0 sAverage over July 2026
New blocks / day17.2KAverage over July 2026
Blocks added534.7KDuring July 2026
Archive growth18 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 Stellar Testnet.

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

Streams the 100 most recent blocks from Stellar 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
  • Substreamstestnet.stellar.streamingfast.io:443
  • Firehosetestnet.stellar.streamingfast.io:443
First block767Lowest streamable height
Block modelOthersf.stellar.type.v1.Block
ServicesSubstreams · FirehoseNative token: XLM

Resources

testnet.stellarchain.ioChain documentationBlock protobuf schema