---
title: "Retrieve unspent boxes by their associated ergotree"
method: POST
path: "/blockchain/box/unspent/byErgoTree"
tags: ["blockchain"]
---

# Retrieve unspent boxes by their associated ergotree

`POST /blockchain/box/unspent/byErgoTree`

## Query parameters

- `offset` integer
- `limit` integer
- `sortDirection` string
- `includeUnconfirmed` boolean
- `excludeMempoolSpent` boolean

## Request body

- string

## Response `200`

unspent boxes with wanted ergotree

- object
  - `items` IndexedErgoBox[] — Array of boxes
    - `boxId` string, base16 — Base16-encoded transaction box id bytes. Should be 32 bytes long
    - `value` integer, required — Amount of Ergo token
    - `ergoTree` string, base16, required — Base16-encoded ergo tree bytes
    - `creationHeight` integer, required — Height the output was created at
    - `assets` Asset[] — Assets list in the transaction
      - `tokenId` string, base16, required — Base16-encoded 32 byte digest
      - `amount` integer, required — Amount of the token
    - `additionalRegisters` Registers, required — Ergo box registers
    - `transactionId` string, base16 — Base16-encoded transaction id bytes
    - `index` integer — Index in the transaction outputs
    - `address` string, required — Encoded Ergo Address
    - `spentTransactionId` string, base16, required — Base16-encoded 32 byte modifier id
    - `spendingHeight` integer, nullable, required — The height the box was spent at
    - `inclusionHeight` integer, required — The height the transaction containing the box was included in a block at
    - `spendingProof` SpendingProof — Spending proof for transaction input
      - `proofBytes` string, base16, required — Base16-encoded spending proofs
      - `extension` object, required — Variables to be put into context
    - `globalIndex` integer, required — Global index of the output in the blockchain
  - `total` integer — Total number of retreived boxes

## Other responses

- `404` — No unspent box found with wanted ergotree
- `default` — Error

---

[API](https://skmtc.net/ergoplatform/apis/ergo-node-api.md) · [All operations](https://skmtc.net/ergoplatform/apis/ergo-node-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/ergoplatform/ergo-node-api/versions/ef97e678f020/schema)