Access to full transaction data on all transactions & addresses
Broadcast and verify transactions with real-time monitoring
Retrieve blockchain data, balances, and transactions
Detailed blockchain history and transaction data for any address.
Full smart contracts metadata, including token symbols & token names
Dedicated nodes infrastructure for leading blockchains using JSON-RPC
Address validation, encoding & cryptographic tasks optimizations
Shared node infrastructure for top blockchains using JSON-RPC.
Real-time notifications for events on top blockchains. Response under 100ms.
AML address screening across 20+ blockchains
14 MCP servers + n8n MCP client for AI agents
Precise blockchain transaction fee estimates based on transaction priority
Sync and manage HD wallets, keys and addresses
Prepare EVM transactions, including token transfers
Access to full transaction data on all transactions & addresses
Get access to unified market data using REST APIs from top crypto exchanges.
Test EVM transactions, optimize gas fees and identify security flaws
The crypto compliance landscape just leveled up — and we're leading the charge.
At Crypto APIs, we've been relentlessly building the infrastructure that serious compliance teams, fintechs, exchanges, and Web3 builders rely on to stay ahead of regulators, criminals, and reputational risk. Today, we're announcing a landmark expansion to our AML suite: Know Your Transaction (KYT) — Transaction Screening via API — a purpose-built endpoint that gives you real-time, on-chain transaction risk intelligence at scale.
This isn't a tweak. This is a new frontier in blockchain compliance automation.
Let's be honest. Verifying wallet addresses before transacting is table stakes. But addresses only tell you half the story. Transactions are where the risk lives. A wallet might look clean today but be used to move illicit funds tomorrow. Sanctions evasion, mixing services, darknet market proceeds, ransomware payouts — these risks don't sit in wallets. They move through transactions.
Compliance teams that rely solely on address screening are flying half-blind.
We built our Verify Address / Wallet Screening endpoint to solve the address side of the equation — and thousands of teams already depend on it. But the moment a transaction is initiated, you need a second layer of intelligence that goes deeper.
That's exactly what we built next.
Our brand-new Screen Transaction endpoint is now live, fully documented, and ready for integration.
With a single API call, you can now:
This is KYT done right. Not a dashboard to log into. Not a batch file to upload. A real API-first, developer-first solution that fits into how modern compliance teams actually work.
Together, our AML API suite now gives you complete coverage across the two most critical vectors of crypto compliance:
1. Address Screening (AML)
Screen wallets and addresses before you interact with them. Know who you're dealing with.
→ Verify Address Endpoint
2. Transaction Screening (KYT)
Screen the actual movement of funds. Know what's happening on-chain in real time.
→ Screen Transaction Endpoint
No more gaps. No more blind spots. No more excuses.
Regulators across the US, EU, and Asia are tightening the screws on crypto compliance. FATF's Travel Rule, MiCA in Europe, FinCEN guidance in the US — the message is consistent and unambiguous: you are responsible for knowing the source and destination of funds moving through your platform.
The cost of getting this wrong isn't just a fine. It's license revocations, banking partner terminations, reputational collapse, and in serious cases, criminal liability. The crypto businesses that will thrive in 2025 and beyond are the ones building compliance infrastructure today — not scrambling to patch it after an incident.
Our new KYT endpoint was built precisely for this moment. For the teams that want to move fast without cutting corners. For the builders who know that compliance isn't a checkbox — it's a competitive advantage.
Our API documentation is clear, comprehensive, and built for real integration — not just a sales pitch. Whether you're a developer wiring this into your transaction pipeline, a compliance officer evaluating vendor solutions, or a founder making critical infrastructure decisions, the Screen Transaction endpoint documentation will tell you everything you need to know to get live fast.
We obsess over developer experience because we know that a compliance tool no one uses — or is too painful to integrate — is a compliance tool that fails its job.
This KYT launch is part of a broader, aggressive expansion of our compliance and risk intelligence API suite. We're not slowing down. Our roadmap is packed — and the teams building on Crypto APIs today are going to have an unfair advantage over those who wait.
If you're not already using our AML and KYT endpoints, there's never been a better time to start. Explore the full documentation, test the endpoints in our sandbox, and reach out to our team if you need help scoping your integration.
Compliance isn't optional. Make it your superpower.