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Stacks Blockchain API (Hiro)

Hosted, indexed REST API for Stacks transactions, tokens and contract events.

Stacks Blockchain API (Hiro)

Hiro

Best for Hosted, indexed REST API for Stacks transactions, tokens and contract events

Chains
Stacks (network not stated)* Docs name the chain but not the network.
Price
Free: 50 requests/min without a key, 500 requests/min with a free API key

A hosted REST API from Hiro that adds indexed endpoints for transaction history, token transfers, contract events and blocks on top of the Stacks node RPC. Use it without a key at 50 requests per minute per IP, or with a free API key at 500 requests per minute. Its docs name Stacks and a Stacks testnet faucet.

Catch Fixed free limits; above 500 requests per minute you have to contact Hiro

Visit Stacks Blockchain API (Hiro) Checked Oct 17, 2026 against the maker's page for Stacks Blockchain API (Hiro) (price and verdict source)

Chain support, with sources

We only add a chain when the maker's own docs name it. "EVM-compatible" alone counts for no specific chain. A testnet-only record means the page we checked only shows testnet; it isn't a finding that mainnet is unsupported. This is what the docs say, not a test or security review.

Common questions about Stacks Blockchain API (Hiro)

Which blockchains does Stacks Blockchain API (Hiro) support?
They name Stacks without saying which network. Every chain links to the maker's own page above.
How much does Stacks Blockchain API (Hiro) cost?
Free: 50 requests/min without a key, 500 requests/min with a free API key.

Docs: docs.stacks.co/reference/api/stacks-blockchain-api

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