payments

name

payments

description

This skill should be used when sending BSV with the 1sat-sdk — single payments, batch payments to multiple recipients, paymail sends, OP_RETURN data, custom locking scripts, inscriptions attached to a payment, sweeping a wallet's whole balance to one destination, or deriving deposit addresses to receive BSV. Triggers on 'send BSV', 'payment', 'batch payment', 'pay to paymail', 'OP_RETURN', 'send all BSV', 'sweep balance', 'deposit address', 'receive BSV', or 'derive address'. Uses @1sat/actions.

Payments

Send BSV and derive deposit addresses with @1sat/actions.

Calling Pattern

import { createContext, sendBsv } from '@1sat/actions'

const ctx = createContext(wallet, { services }) // wallet positional, options second
const result = await sendBsv.execute(ctx, input)

services is optional for these actions but provide it if you have it. The wallet is any BRC-100 compatible WalletInterface.

sendBsv

Send BSV to one or more destinations in a single transaction. Single-phase — it calls wallet.createAction directly and does not use two-phase signing. Plain sends carry no P1Sat semantics (no asset inputs, no basketed outputs).

Input

interface SendBsvInput {
  requests: SendBsvRequest[]
  fundingProvider?: FundingProvider // optional external funder
}

interface SendBsvRequest {
  address?: string   // destination P2PKH address
  paymail?: string   // destination paymail
  satoshis: number   // amount in satoshis (required)
  script?: string    // custom locking script (hex)
  data?: string[]    // OP_RETURN data elements
  inscription?: {    // attach an inscription (requires `address`)
    base64Data: string
    mimeType: string
    map?: Record<string, string>
  }
  fundingProvider?: FundingProvider
}

Each request resolves to exactly one output, chosen by which field is set (precedence): paymail → script → address (with optional inscription) → data (OP_RETURN). A request with none of these returns { error: 'invalid-request' }.

Response

interface SendBsvResponse {
  txid?: string
  tx?: number[]   // AtomicBEEF (BRC-95)
  error?: string
}

Examples

// Simple payment
await sendBsv.execute(ctx, {
  requests: [{ address: '1Recipient...', satoshis: 50000 }],
})

// Batch payment to multiple recipients
await sendBsv.execute(ctx, {
  requests: [
    { address: '1Alice...', satoshis: 10000 },
    { address: '1Bob...', satoshis: 20000 },
  ],
})

// Paymail (resolves the recipient's outputs via P2P payment destination,
// then delivers the BEEF P2P after broadcast)
await sendBsv.execute(ctx, {
  requests: [{ paymail: '[e-mail]', satoshis: 25000 }],
})

// Custom locking script (hex)
await sendBsv.execute(ctx, {
  requests: [{ script: '76a914...88ac', satoshis: 5000 }],
})

// OP_RETURN data
await sendBsv.execute(ctx, {
  requests: [{ data: ['hello', 'world'], satoshis: 0 }],
})

// Payment with an inscription on the output
await sendBsv.execute(ctx, {
  requests: [{
    address: '1Recipient...',
    satoshis: 1,
    inscription: {
      base64Data: btoa('Hello on-chain'),
      mimeType: 'text/plain',
    },
  }],
})

Notes

• Paymail sends call getP2pPaymentDestination to fetch the recipient's outputs and a reference, then deliver the transaction BEEF P2P (sendBeefP2P) after broadcast. The AtomicBEEF returned by createAction is converted to plain BEEF (BRC-62) before delivery.
• fundingProvider: when set, the provider funds and broadcasts the transaction instead of the wallet. Can be passed at the input level or per-request.
• Returns { error: 'no-requests' } for an empty requests array, { error: 'invalid-data' } for malformed OP_RETURN data, and { error: 'no-txid-returned' } if the wallet returns no txid.

sendAllBsv

Sweep the wallet's entire spendable balance to a single destination address. Single-phase like sendBsv. Uses the wallet's max-fundable sentinel so the output is adjusted to all available funds minus fees.

Input

interface SendAllBsvInput {
  destination: string // P2PKH address (paymail not supported)
  fundingProvider?: FundingProvider
}

Returns SendBsvResponse. Paymail destinations are rejected — use sendBsv with a fixed amount instead.

import { createContext, sendAllBsv } from '@1sat/actions'

const ctx = createContext(wallet, { services })
await sendAllBsv.execute(ctx, { destination: '1Recipient...' })

deriveDepositAddresses

Derive P1SAT wallet-bound deposit addresses from the wallet's identity key, for receiving BSV (or ordinals/tokens). KeyID format is <prefix> <index> (plaintext). This is a read-only derivation — it does not build a transaction.

Input

interface DeriveDepositAddressesInput {
  prefix?: string      // KeyID prefix; default "1sat" (DEFAULT_DEPOSIT_PREFIX)
  startIndex?: number  // first index to derive; default 0
  count?: number       // number of addresses to derive; default 1
}

The default prefix "1sat" is chosen so any wallet binding the same identity key (yours-wallet, wallet-desktop, CLI, MCP server) derives the same default deposit addresses without coordination. Supply a custom prefix only when you want a distinct address set (e.g. "mcp").

Result

interface DeriveDepositAddressesResult {
  derivations: AddressDerivation[]
}

interface AddressDerivation {
  address: string            // base58check address
  index: number              // key index
  derivationPrefix: string   // the prefix used
  derivationSuffix: string   // String(index)
  senderIdentityKey: string  // wallet's root identity public key
  publicKey: string          // derived public key for this address
}

import { createContext, deriveDepositAddresses } from '@1sat/actions'

const ctx = createContext(wallet, { services })

// One default deposit address
const { derivations } = await deriveDepositAddresses.execute(ctx, {})

// Five addresses under a custom prefix
const { derivations: mcpAddrs } = await deriveDepositAddresses.execute(ctx, {
  prefix: 'mcp',
  startIndex: 0,
  count: 5,
})

Related

• Action/context pattern, two-phase signing, registry, baskets and tags: see ../action-patterns
• Inscriptions as standalone outputs: see ../inscriptions

Requirements

bun add @1sat/actions @bsv/sdk