# Esplora HTTP API

**Esplora** is an open-source block explorer and RESTful HTTP API for the Bitcoin blockchain, built by Blockstream.

Validation Cloud Bitcoin nodes support the [Esplora RESTful HTTP API](https://github.com/Blockstream/esplora/blob/master/API.md) for querying Bitcoin blockchain data, including blocks, addresses, transactions, UTXOs, and mempool information.

Developers can use Esplora as a backend to interact with Bitcoin data without needing to parse raw blockchain files or operate their own full indexing logic. Applications such as wallets, analytics platforms, and dashboards integrate Esplora to fetch real-time chain data efficiently.

Amounts returned in API calls are always represented in satoshis.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.validationcloud.io/v1/bitcoin/esplora-http-api.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.