# Blockchain Data Explorer API

Source URL: https://blockstream.com/blockchain-data-explorer-api
Updated: 2026-11-13T20:48:00.000Z

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*BLOCKCHAIN DATA*

## Blockchain data

without the backend hassle.

Get fully indexed bitcoin and Liquid data over REST,

Electrum RPC, and Waterfalls.

- [Read docs](https://github.com/Blockstream/esplora/blob/master/API.md)

*FEATURES*

## Performant, reliable, and ready out of the box.

Retrieve data in milliseconds from globally distributed infrastructure,

supported by Bitcoin Development Kit (BDK) and Liquid Wallet Kit (LWK).

### Query from one API.

Bitcoin and Liquid, mainnet and testnet—all fully indexed.

### Get the data your app needs.

UTXOs, balances, transactions, mempool, and fee data.

### Start in minutes.

Instant API keys and up-to-date documentation.

### Answer queries fast.

No need to wait on a chain scan. Audit and run it yourself. The indexer is fully open source.

### Sync wallets in fewer calls.

QuickSync takes a descriptor once and returns the full history 80% faster than standard wallet sync times.

### Audit and run it yourself.

The indexer is fully open source.

*RELIABLE AND TRUSTWORTHY*

## Built for demanding workloads.

We handle the blockchain backend so your team can focus on the product.

### Stay up when demand spikes.

99.9% uptime SLA, served from georedundant infrastructure.

### Built by bitcoin engineers.

We wrote and maintain the indexer, and have worked on open-source bitcoin tooling since 2014.

### Running in production.

Blockchain data has powered blockstream.info since 2018.

### Focused on bitcoin and Liquid.

Both networks get full support, with no other chains competing for engineering time.

- [SideSwap](https://blockstream.com/)
- [Sparrow](https://blockstream.com/)
- [Aqua](https://blockstream.com/)
- [Nunchuk](https://blockstream.com/)
- [Blockstream](https://blockstream.com/)

*PRICING*

*TIER 1*

### Basic

- Basic support and Help Center access
- QuickSync access (10 credits per call)
- 99.9% SLA

- 500k API credits for: $40

- [Get API key](https://dashboard.blockstream.info/)

*TIER 2*

### Advanced

- Everything in Basic, plus:
- Advanced support with 24-48h response
- QuickSync access (5 credits per call)
- Early access to new features
- Propose new features
- 99.9% SLA

- 1M API credits for: $100
- 5M API credits for: $499
- 10M API credits for: $999

- [Get API key](https://dashboard.blockstream.info/)

*TIER 3*

### Enterprise

- Everything in advanced, plus:
- Custom agreements and dedicated servers
- Dedicated support
- QuickSync access (1 credit per call)
- Priority access to new features
- 99.9% SLA

- Contact us for a tailored plan designed for high-volume, enterprise-grade applications

- [Contact us](https://blockstream.typeform.com/to/SWKNyzvS?typeform-source=blockstream.com)

- [Start free](https://dashboard.blockstream.info/)
- Private queries, plus public REST access to bitcoin and Liquid data at

blockstream.info, rate-limited for prototyping and light use.

*GET STARTED*

## Enterprise plans for high-volume applications.

Dedicated servers, custom agreements, and support from the team that runs the infrastructure.

- [Talk to our team](https://blockstream.typeform.com/to/SWKNyzvS?typeform-source=blockstream.com)