> ## Documentation Index
> Fetch the complete documentation index at: https://second.tech/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Estimate Lightning receive fee

> Estimates the fee for receiving the specified amount over Lightning. The gross amount is the Lightning payment amount, and the net amount is what the user receives as a VTXO after the Ark server deducts its fee.



## OpenAPI

````yaml https://gitlab.com/ark-bitcoin/bark/-/raw/master/bark-rest/openapi.json get /api/v1/fees/lightning/receive
openapi: 3.1.0
info:
  title: barkd REST API
  description: >-
    A simple REST API for barkd, a wallet daemon for integrating bitcoin
    payments into your app over HTTP. Supports self-custodial Lightning, Ark,
    and on-chain out of the box.


    barkd is a long-running daemon best suited for always-on or
    high-connectivity environments like nodes, servers, desktops, and
    point-of-sale terminals.


    All endpoints return JSON. Amounts are denominated in satoshis.
  contact:
    name: Second Team
    email: hello@second.tech
  license:
    name: MIT
    identifier: MIT
  version: 0.1.4
servers: []
security:
  - bearer: []
tags:
  - name: boards
    description: Move on-chain bitcoin onto the Ark protocol.
  - name: exits
    description: Move bitcoin back on-chain without server cooperation.
  - name: fees
    description: Estimate fees for wallet operations before executing them.
  - name: lightning
    description: Create Lightning invoices and track receives.
  - name: onchain
    description: Manage barkd's on-chain bitcoin wallet.
  - name: wallet
    description: Manage Ark balances and VTXOs, send payments via Ark, LN, and on-chain.
  - name: bitcoin
    description: Query bitcoin network data.
  - name: notifications
    description: Receive real-time notifications from barkd.
paths:
  /api/v1/fees/lightning/receive:
    get:
      tags:
        - fees
      summary: Estimate Lightning receive fee
      description: >-
        Estimates the fee for receiving the specified amount over Lightning. The
        gross amount is the Lightning payment amount, and the net amount is what
        the user receives as a VTXO after the Ark server deducts its fee.
      operationId: lightning_receive_fee
      parameters:
        - name: amount_sat
          in: query
          description: The amount in satoshis to receive over Lightning
          required: true
          schema:
            type: integer
            format: int64
            minimum: 0
      responses:
        '200':
          description: Returns the fee estimate
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FeeEstimateResponse'
        '400':
          description: Invalid amount
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequestError'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerError'
components:
  schemas:
    FeeEstimateResponse:
      type: object
      description: A fee estimate for an Ark wallet operation.
      required:
        - gross_amount_sat
        - fee_sat
        - net_amount_sat
        - vtxos_spent
      properties:
        fee_sat:
          type: integer
          format: int64
          description: The fee portion (in satoshis)
          minimum: 0
        gross_amount_sat:
          type: integer
          format: int64
          description: The total amount including fees (in satoshis)
          minimum: 0
        net_amount_sat:
          type: integer
          format: int64
          description: >-
            The amount excluding fees (in satoshis). For sends, this is the
            amount

            the recipient receives. For receives, this is the amount the user
            gets.
          minimum: 0
        vtxos_spent:
          type: array
          items:
            type: string
          description: The VTXOs that would be spent for this operation
    BadRequestError:
      type: object
      required:
        - message
      properties:
        message:
          type: string
    InternalServerError:
      type: object
      required:
        - message
      properties:
        message:
          type: string
  securitySchemes:
    bearer:
      type: http
      scheme: bearer
      bearerFormat: AuthToken
      description: Base64url-encoded auth token

````