openapi: 3.0.3
info:
  title: Litecoin Core JSON-RPC Addresses UTXO API
  description: 'The primary programmatic interface to a Litecoin Core node. Clients send HTTP POST requests with JSON-RPC 2.0 payloads to interact with the node. Methods cover blockchain state, block and transaction retrieval, mempool inspection, network peers, mining, UTXO queries, address validation, raw transaction construction and broadcast, and fee estimation. Authentication is required via cookie file or rpcauth credentials. The daemon listens on port 9332 (mainnet), 19332 (testnet), and 19443 (regtest).

    '
  version: '0.21'
  contact:
    name: Litecoin Project
    url: https://github.com/litecoin-project/litecoin
  license:
    name: MIT
    url: https://github.com/litecoin-project/litecoin/blob/master/COPYING
servers:
- url: http://localhost:9332
  description: Litecoin Core mainnet
- url: http://localhost:19332
  description: Litecoin Core testnet
- url: http://localhost:19443
  description: Litecoin Core regtest
security:
- basicAuth: []
tags:
- name: UTXO
  description: Unspent transaction output query endpoints
paths:
  /rest/getutxos/{checkmempool}/{outpoints}.json:
    get:
      operationId: getUtxosJson
      summary: Get UTXOs (JSON)
      description: 'Queries the UTXO set for specified outpoints per BIP64. The checkmempool segment is a flag (0 or 1) indicating whether to check the mempool for unconfirmed outputs. Outpoints are specified as txid-n pairs separated by slashes (e.g. txid1-0/txid2-1).

        '
      parameters:
      - name: checkmempool
        in: path
        required: true
        description: Whether to check the mempool (0=no, 1=yes)
        schema:
          type: integer
          enum:
          - 0
          - 1
      - name: outpoints
        in: path
        required: true
        description: 'One or more outpoints as txid-vout pairs separated by slashes (e.g. abc123-0/def456-1)

          '
        schema:
          type: string
      responses:
        '200':
          description: UTXO query results in JSON format
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UtxoResult'
        '400':
          description: Invalid outpoint format
      tags:
      - UTXO
components:
  schemas:
    UtxoResult:
      type: object
      properties:
        chainHeight:
          type: integer
          description: Current chain height
        chaintipHash:
          type: string
          description: Hash of the chain tip
        bitmap:
          type: string
          description: Bitmap indicating which requested UTXOs exist
        utxos:
          type: array
          items:
            type: object
            properties:
              txid:
                type: string
              vout:
                type: integer
              height:
                type: integer
                description: Block height where the UTXO was created
              value:
                type: number
                description: Value in LTC
              scriptPubKey:
                type: object
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: 'HTTP Basic Authentication using credentials from the .litecoin/.cookie file or configured via rpcauth in litecoin.conf.

        '
externalDocs:
  description: Litecoin Core JSON-RPC Interface Documentation
  url: https://github.com/litecoin-project/litecoin/blob/master/doc/JSON-RPC-interface.md