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NxtGateW

Deposit wallets, payment splits, and utility NFTs — one REST API. Register, get keys, integrate.

Create account Read the docs

Wallets & payment splits

Give each payment or customer a deposit address. Funds settle on-chain to your rules.

Ephemeral wallets for one-shot checkouts, or client wallets reused per user. Native splits to merchant, platform, and affiliates.

  • Deposit addresses (API)
  • Ephemeral checkouts
  • One wallet per customer
  • On-chain payment splits
  • Lifecycle: funded → split
  • Private key export (client mode)
  • Polygon & Ethereum
  • Movement webhooks
Wallet API guide

Utility NFTs for your product

Memberships, licenses, and order receipts — mint from your backend or import a mint already on-chain.

Self-serve collections under your API keys. Mode A: NxtGateW mints after you confirm payment. Mode B: index an external on-chain mint. Same webhook: nft.minted.

  • Mode A — platform mint
  • Mode B — import by tx hash
  • Membership (soulbound)
  • Order receipt NFTs
  • Digital licenses
  • Your collections
  • Tier upgrades
  • nft.minted webhooks
NFT Mode A & B

On-chain automation

Background workers handle mint confirmation, splits, and lifecycle txs.

You call the API once; workers broadcast, wait for confirmations, and notify you.

  • Mint confirmation
  • Native splits
  • Lifecycle on-chain
  • Retry queues
  • Idempotency keys
  • Operation status API
  • Cron-managed workers
Browse docs

Signed webhooks

Know when a deposit lands, a split finishes, or an NFT is minted.

  • HMAC-signed deliveries
  • Wallet events
  • NFT events
  • Retries
  • Delivery history
  • Per-endpoint secrets
Open API console

From payment to on-chain proof

Typical merchant path — payment confirmed, then wallet settle and/or NFT.

  1. Customer pays
  2. Create deposit wallet
  3. Funds arrive → split
  4. Mint or import NFT
  5. Webhook nft.minted
  6. Activate access in your app
  7. Upgrade membership later
Read the docs

One API for the whole stack

Register on the platform, create API keys, then ship wallets and NFTs without running your own chain ops.

  1. Wallets
  2. NFTs
  3. Splits
  4. Webhooks
  5. Console

Built for product teams

Everything is available after self-serve signup — docs, console, and OpenAPI included.

  • Deposit wallets + configurable on-chain splits
  • Two NFT mint paths: platform mint or import
  • Membership, license, and order-receipt assets
  • Signed webhooks and an interactive API console
Create a free account
What merchants get

Simple infrastructure.
Clear outcomes.

Deposit & split

API-created addresses, automatic distribution to merchant / platform / affiliates.

NFT Mode A

You confirm payment; NxtGateW mints on-chain and notifies you.

NFT Mode B

Something already minted on your contract? Import the tx — no double mint.

Self-serve

Register, get keys, open the console — no custom onboarding required to start.

Multi-chain

Polygon and Ethereum for NFTs; wallet networks per your account config.

Your brand

NxtGateW stays the infrastructure layer. Customers stay on your product.

Wallets

Create, fund detection, and split lifecycle via REST.

NFTs

Collections, Mode A mint, Mode B import, metadata, lifecycle.

Automation

Workers confirm mints and run splits in the background.

Developer tools

Guide, OpenAPI, console, HMAC, idempotency.

Security built into the platform

Credentials, encryption, signatures, and queue monitoring are part of the product — see the developer guide and NFT modes.

Wallet Encryption

Private keys encrypted at rest when stored by the platform; export when your model requires it.

HMAC Signatures

Optional request signing with timestamp and nonce; reused nonces rejected as replay.

Signed Webhooks

Outbound events verified with platform signatures and IPN tokens.

Smart Contract Validation

On-chain mints against configured contract addresses with confirmation waits.

Role Based Access

Merchant, PSP, and admin roles with API credentials scoped to your account.

Audit Logs & Queue Monitoring

Operations history, webhook delivery status, and admin requeue for failed jobs.

POLYGON ETHEREUM AMOY API EVM networks
Developer platform

Developers: APIs, console, OpenAPI

Wallet API · NFT Mode A/B · Webhooks · OpenAPI · Console

Wallet API
Wallets #API

Wallets — create, client mode, splits, webhooks
NFT API
NFTs #SBT

NFT — Mode A mint, Mode B import, collections, lifecycle

Ready to integrate?

Create an account for API keys, or message us if you need a walkthrough.

Docs: https://nxtgatew.com/docs

Console: API console

Send a message

Or create an account and grab API keys in the dashboard.

FAQs

What can I do with NxtGateW?

Create deposit wallets with on-chain splits, and issue utility NFTs (membership, license, order receipt) through one API — either platform mint (Mode A) or import an existing on-chain mint (Mode B).

Do I need a custom setup to start?

No. Register on the platform, create API keys, open the docs and console. Collections and wallets are scoped to your merchant account.

Mode A vs Mode B for NFTs?

Mode A: after payment, call POST /nft/nfts — NxtGateW mints. Mode B: if a third party already minted on your contract, call POST /nft/nfts/import with the tx_hash. Never do both for the same purchase.

How do payment splits work?

Create a deposit wallet with merchant (and optional affiliate) payout addresses. When crypto arrives, workers split on-chain according to the snapshot stored on that wallet.

Which networks?

NFT module: Polygon, Amoy (sandbox), Ethereum. Deposit wallets: networks enabled on your account (typically Polygon / Ethereum).

Where do I try the API?

Open /docs/merchant-api, save your keys in sessionStorage, then use Wallet or NFT (Mode A mint / Mode B import).