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The Unified Blockchain API for Crypto Payments & Webhooks

One REST API to send tokens, detect deposits, and trigger webhooks for on-chain events — built for production teams.

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Create Secure Wallet Addresses

Create password-protected wallets for Ethereum, BSC, Polygon & Tron via the Chaingateway Wallet API.

Create Native Token Transactions

Send ETH, BNB, MATIC, TRX or BTC using a single API call with your Chaingateway wallet.

Create ERC20 / BEP20 / TRC20 Token Transfers

Send ERC20, BEP20 and TRC20 tokens with a single API call for any supported network.

Create & Receive Webhooks

Subscribe to on-chain events and receive real-time payment notifications via Webhooks.

Fetch Decoded Tron Transactions

Fetch and decode Tron transactions to human-readable data (method, parameters, amounts).

create-address.js

// Chaingateway - Create a password-protected EVM address// Docs: /developers/tutorials/create-addresses.htmlconst axios = require('axios');async function createSecureAddress() {  const url = 'https://api.chaingateway.io/v2/ethereum/addresses';  const payload = {    // Optional: omit password to get privatekey in response (single-use only)    password: 'your_secure_password',  };  const headers = {    Accept: 'application/json',    'content-type': 'application/json',    Authorization: 'YOUR_API_TOKEN',  };  const response = await axios.post(url, payload, { headers });  console.log('Created address:', response.data);  // Example response:  // {  //   "status": 201,  //   "ok": true,  //   "message": "Address created",  //   "data": {  //     "address": "0xYourNewAddress",  //     "keystore": "{...}" // only for EVM when password given  //   }  // }}// For BSC/Polygon just replace /ethereum with /bsc or /polygon// For Tron replace /ethereum with /troncreateSecureAddress().catch(console.error);

Why Us?

A better way to build Blockchain Apps

Fetch Blockchain Data

Fetch Blockchain data with our unified API, fully decoded supporting multiple chains

Realtime Blockchain Event Notifications

Get notified of on-chain events via webhooks, including instant payment notifications and contract executions

Easy Transaction

Build, sign, and send transactions with simple API calls. We built smart defaults so you don’t have to

We Support Your Token

We integrate with all major token standards, including ERC-20, ERC-721, TRC-20, TRC-721 & BEP-20

Core Features

Everything you need, unified

All the blockchain operations you need with one consistent API. Stop juggling different endpoints for different chains.

Send Transactions

One function call to send transactions across all chains. Tron, Ethereum, Polygon, Bitcoin, Arbitrum—same interface.

Gas estimation
Auto-nonce handling
Signature verification

Token Transactions

Send ERC-20, TRC-20, BEP-20 tokens with the same API call. No contract address complexity.

Works with any token
Auto token detection
Decimal handling

Check Balances

Query native and token balances instantly. Automatic formatting and decimals—no manual parsing.

Instant queries
Works with all tokens
NFT Ownership support

Decoded Data

All blockchain responses come pre-decoded and human-readable. No hex parsing required.

Auto-decoding
Type safety
Full metadata

Unified Endpoints

Every chain uses identical routes and parameters. Write once, deploy everywhere.

Same routes
Same parameters
No chain logic

Enterprise Security

HMAC-signed requests, encrypted keys, and role-based access. Bank-grade security built-in.

HMAC signing
Bearer Suth
Passkey encrypted wallets

Working with all Tokens,
Including Your's!

With Chaingateway, you can receive and send any token on on all implemented blockchains. You can build your own token and launch a payment system in minutes.

Interact with your Token

Lightning-fast: Payment detected → Webhook fired → Your app notified

Know the second a payment hits.
React in real-time.

Chaingateway webhooks instantly notify your system of every deposit, withdrawal, and balance change—so you can automate fulfillment, trigger workflows, and delight customers without lifting a finger.

Payment received

Customer sent 1,000 USDC

Webhook fired

Real-time event pushed to your endpoint

Processing event

Action triggered

Order fulfilled, email sent, CRM updated

Trusted by businesses worldwide:

0k+

Wallets monitored 24/7

0M+

Webhooks delivered monthly

Delivery reliability

Supported Networks

One API. Every major chain.

Build once and deploy everywhere. Use identical code for all supported blockchains. No chain-specific logic needed.

Ethereum

The leading smart contract platform

ERC-20 Tokens
ERC-721 NFTs

mainnetsepolia

Tron

Fast and cost-efficient blockchain

TRC-20 Tokens
TRC-721 NFTs

mainnetnile

Polygon

Ethereum's scaling solution

ERC-20 Tokens
ERC-721 NFTs

mainnetamoy

BNB Chain

Binance's high-performance chain

BEP-20 Tokens
BEP-721 NFTs

mainnettestnet

Arbitrum

Ethereum L2 for high throughput

ERC-20 Tokens
ERC-721 NFTs

mainnetsepolia

Bitcoin

The original blockchain

Native Transfers
UTXO Management

mainnettestnet3

Ready to get started?

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Loved by builders across payments and web3

Teams building payment products choose Chaingateway for the speed of a SaaS tool and the resilience of on-chain infrastructure.

See customer stories

Nia Patel

@finpay-founder

Chaingateway let us launch USDC deposits in 2 weeks. Webhooks are rock solid and our engineers finally sleep.

Marcos Lima

@devops-chain

We replaced four wallet daemons with one API. Gas handling and retries just work across chains.

Laura Chen

@riskops

Address screening + payout approvals in one flow means fewer late-night support tickets for my team.

Nia Patel

@finpay-founder

Chaingateway let us launch USDC deposits in 2 weeks. Webhooks are rock solid and our engineers finally sleep.

Marcos Lima

@devops-chain

We replaced four wallet daemons with one API. Gas handling and retries just work across chains.

Laura Chen

@riskops

Address screening + payout approvals in one flow means fewer late-night support tickets for my team.

Nia Patel

@finpay-founder

Chaingateway let us launch USDC deposits in 2 weeks. Webhooks are rock solid and our engineers finally sleep.

Marcos Lima

@devops-chain

We replaced four wallet daemons with one API. Gas handling and retries just work across chains.

Laura Chen

@riskops

Address screening + payout approvals in one flow means fewer late-night support tickets for my team.

Nia Patel

@finpay-founder

Chaingateway let us launch USDC deposits in 2 weeks. Webhooks are rock solid and our engineers finally sleep.

Marcos Lima

@devops-chain

We replaced four wallet daemons with one API. Gas handling and retries just work across chains.

Laura Chen

@riskops

Address screening + payout approvals in one flow means fewer late-night support tickets for my team.

Ethan Brooks

@ledgerstack

Our auditors loved the exportable logs. Every webhook has a receipt and signature we can trace.

Zara Idris

@product-ledger

Chaingateway is Zapier-fast but production-ready. We prototype new rails without risking production wallets.

Jamal Reed

@web3banking

Multi-chain payouts used to be a fire drill. Now it’s a single call with observability baked in.

Ethan Brooks

@ledgerstack

Our auditors loved the exportable logs. Every webhook has a receipt and signature we can trace.

Zara Idris

@product-ledger

Chaingateway is Zapier-fast but production-ready. We prototype new rails without risking production wallets.

Jamal Reed

@web3banking

Multi-chain payouts used to be a fire drill. Now it’s a single call with observability baked in.

Ethan Brooks

@ledgerstack

Our auditors loved the exportable logs. Every webhook has a receipt and signature we can trace.

Zara Idris

@product-ledger

Chaingateway is Zapier-fast but production-ready. We prototype new rails without risking production wallets.

Jamal Reed

@web3banking

Multi-chain payouts used to be a fire drill. Now it’s a single call with observability baked in.

Ethan Brooks

@ledgerstack

Our auditors loved the exportable logs. Every webhook has a receipt and signature we can trace.

Zara Idris

@product-ledger

Chaingateway is Zapier-fast but production-ready. We prototype new rails without risking production wallets.

Jamal Reed

@web3banking

Multi-chain payouts used to be a fire drill. Now it’s a single call with observability baked in.

The Unified Blockchain API for Crypto Payments & Webhooks

Create Secure Wallet Addresses

Create Native Token Transactions

Create ERC20 / BEP20 / TRC20 Token Transfers

Create & Receive Webhooks

Fetch Decoded Tron Transactions

A better way to build Blockchain Apps

Fetch Blockchain Data

Realtime Blockchain Event Notifications

Easy Transaction

We Support Your Token

Everything you need, unified

Working with all Tokens, Including Your's!

Know the second a payment hits. React in real-time.

Payment received

Webhook fired

Processing event

Action triggered

One API. Every major chain.

Start your free trial today.

Loved by builders across payments and web3

Working with all Tokens,
Including Your's!

Know the second a payment hits.
React in real-time.