Mass payouts to employees, affiliates, or DAO members used to be a manual nightmare. These APIs change that.
Sending hundreds of payments one by one wastes time. Spreadsheets, multiple wallets, and endless copying of addresses lead to errors. A good payout API fixes this. One call sends money to thousands of people. The recipient gets funds in their local currency or crypto wallet. Below are five APIs that automate global payouts. Each serves a different need. Some handle both crypto and fiat. Others focus only on Bitcoin or self‑hosted control.
1. Paybis
Paybis built an API for businesses that pay people across borders. The system supports both crypto and fiat in a single integration. A company can send USDC to a freelancer in Brazil and euros to a contractor in Germany using the same endpoint.
One API for Two Asset Types
Most payout tools pick one lane. Crypto‑only. Or fiat‑only. Paybis combines them. The API sends over 90 cryptocurrencies, including Bitcoin, Ethereum, and major stablecoins. For fiat, it covers 70 currencies. The platform handles the conversion and delivery through local payment methods.
Supported fiat rails:
- SEPA (Europe)
- ACH (United States)
- PIX (Brazil)
- Faster Payments (UK)
- Local bank transfers in 180+ countries
Tracking and Speed
Every payout comes with a webhook. The sending system gets a notification when the transaction completes. Settlement happens near‑instantly for crypto. Fiat payouts take between a few hours and two days, depending on the destination country and method. Businesses can retry failed payouts automatically. The dashboard shows the status of every transfer.
The API works for payroll, affiliate commissions, rebate programs, and DAO contributor payments. A single integration replaces multiple banking and crypto wallet connections.
2. Blockonomics
Blockonomics takes a direct approach. No accounts for recipients. No KYC. The API sends Bitcoin payments straight to any wallet address the recipient provides.
How Direct Payments Work
A business calls the Blockonomics API with a list of Bitcoin addresses and amounts. The platform broadcasts the transactions to the Bitcoin network. Each recipient receives the funds directly. No middleman holds the money. No sign‑up or verification is required from the payee.
Key traits:
- No recipient account needed
- Zero KYC requirements for senders or receivers
- Works with any Bitcoin wallet
- Low transaction fees (standard Bitcoin network fees)
Limitations to Note
Blockonomics only supports Bitcoin plus a handful of altcoins like Litecoin and Bitcoin Cash. No fiat payouts. No stablecoins. No Ethereum or Solana. Businesses paying contractors who prefer USDC or euros cannot use this API.
Another constraint is speed. Bitcoin network confirmations take ten minutes on average. During high traffic periods, fees rise. For mass payouts with many small amounts, the total network cost adds up. Blockonomics works best for occasional Bitcoin payments to technical users who already hold Bitcoin wallets.
3. NOWPayments
NOWPayments offers a mass payout feature designed for affiliate networks and content creators. The API handles hundreds of cryptocurrencies. Minimum payout amounts sit lower than most competitors.
Low Minimums for Small Payments
Some payout platforms require 1 worth of crypto to thousands of users. This suits micro‑affiliate programs, airdrops, or reward systems. The platform takes a small percentage fee per payout.
Supported assets:
- 100+ cryptocurrencies, including Bitcoin, Ethereum, Solana, and Dogecoin
- Multiple stablecoins (USDC, USDT, DAI)
- BNB Chain, Tron, and Polygon networks
Missing Fiat Payouts
NOWPayments does not support fiat currency payouts. Recipients always receive crypto. A contractor who wants euros or dollars must convert the funds themselves. This adds steps and exchange fees. For crypto‑native workers, the system works smoothly. For traditional freelancers or employees, it creates friction.
The platform also lacks advanced tracking features. Webhooks exist, but the dashboard provides basic reporting. Large enterprises with complex reconciliation needs may find the tools insufficient. Small to medium businesses running affiliate programs get good value from the low minimums and wide coin selection.
4. BTCPay Server
BTCPay Server stands apart from the others. It is open source and self‑hosted. A business runs its own payout server. No third party holds or touches the funds.
Full Control for Technical Teams
Every other API on this list requires trusting the platform with money. BTCPay Server does not. The business controls the private keys. The software runs on the company’s own infrastructure. Funds move directly from the business crypto wallet to recipients. No middleman can freeze or delay payments.
Advantages of self‑hosting:
- Zero platform fees (pay only blockchain network fees)
- Complete privacy – no transaction data shared with third parties
- Customizable payout logic
- No account limits or approval delays
Technical Barriers
Freedom comes with a cost. Running BTCPay Server requires server administration skills. The operator manages uptime, security patches, and database backups. Scaling to thousands of payouts demands careful engineering. A mistake in setup could expose private keys or lose funds.
Most businesses do not have this expertise. Companies with dedicated DevOps teams benefit from the control. Others should stick with hosted APIs. BTCPay Server also lacks fiat payouts. The system handles Bitcoin and several other blockchains but connects to no bank rails.
5. Paymento
Paymento describes itself as an API‑first. The platform supports over 4,000 crypto assets. Non‑custodial design means the business retains control of funds until the moment of payout.
Massive Asset Coverage
Few platforms match Paymento’s list of supported cryptocurrencies. Any token on Ethereum, BNB Chain, Polygon, Avalanche, or dozens of other networks works. A business paying contributors in niche altcoins finds a home here. The API automatically calculates network fees and adjusts amounts when needed.
Key features for developers:
- REST API with clear documentation
- Webhook notifications for success or failure
- Batch payout endpoint for thousands of transactions
- Non‑custodial – funds stay in the business wallet until the API call
Crypto‑Only Focus
Like NOWPayments and Blockonomics, Paymento does not offer fiat payouts. Recipients always receive crypto. No option for bank transfers, cards, or local payment methods. The platform also lacks a dashboard for non‑technical users. Everything happens through the API. A business needs developer resources to integrate and maintain the connection.
Paymento suits crypto‑first companies with strong engineering teams. Traditional businesses with mixed fiat and crypto payouts may find the missing fiat rails a dealbreaker.
What’s the Right Payout API
Automated payout APIs vary widely between crypto‑only and hybrid fiat‑crypto solutions. The decision often comes down to geographic coverage, self‑custody requirements, and whether fiat payouts are essential for your use case.
Paybis delivers a hybrid solution. One API sends 90+ cryptocurrencies or 70 fiat currencies to 180+ countries. Blockonomics handles direct Bitcoin payments without recipient accounts. NOWPayments supports low‑minimum mass payouts across 100+ cryptos. BTCPay Server gives full control through open-source self‑hosting. Paymento offers non‑custodial payouts for 4,000+ assets.
A business paying international freelancers in multiple currencies should prioritize fiat coverage. A DAO rewarding contributors in crypto may not need fiat at all. A regulated financial firm must consider self‑custody options. Map the recipient list first. Match the API to how those people actually want to get paid. Then automate.