> ## 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.

# Create a BOLT11 invoice

> Generates a new BOLT11 invoice for the specified amount via the Ark server, creating a pending Lightning receive.



## OpenAPI

````yaml https://gitlab.com/ark-bitcoin/bark/-/raw/master/bark-rest/openapi.json post /api/v1/lightning/receives/invoice
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/lightning/receives/invoice:
    post:
      tags:
        - lightning
      summary: Create a BOLT11 invoice
      description: >-
        Generates a new BOLT11 invoice for the specified amount via the Ark
        server, creating a pending Lightning receive.
      operationId: generate_invoice
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LightningInvoiceRequest'
        required: true
      responses:
        '200':
          description: Returns the created invoice
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InvoiceInfo'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerError'
components:
  schemas:
    LightningInvoiceRequest:
      type: object
      required:
        - amount_sat
      properties:
        amount_sat:
          type: integer
          format: int64
          description: >-
            The amount to create invoice for (in satoshis). This is the amount
            the payee will pay but

            the final amount received by the client will have any
            server-configured

            [LightningReceiveFees](crate::cli::fees::LightningReceiveFees)
            deducted.
          minimum: 0
        description:
          type:
            - string
            - 'null'
          description: Optional description embedded in the invoice as its memo.
    InvoiceInfo:
      type: object
      required:
        - invoice
      properties:
        invoice:
          type: string
          description: The invoice string
    InternalServerError:
      type: object
      required:
        - message
      properties:
        message:
          type: string
  securitySchemes:
    bearer:
      type: http
      scheme: bearer
      bearerFormat: AuthToken
      description: Base64url-encoded auth token

````