Crypto APIs is an infrastructure layer that radically simplifies the development of any Blockchain and Crypto related applications.
Blockchain
Joined July 2018
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HTTP 402 "Payment Required" sat unused in the spec for 35 years.
Now it's how AI agents pay for APIs.
We just launched x402 Payments — a managed facilitator for both sides of the transaction
With x402, you can:
→ Monetize any endpoint (Express / Hono / Next.js middleware)
→ Let agents pay 402 APIs (buyer SDK + x402_pay MCP tool)
→ Stay non-custodial (local EIP-712 signing, keys never leave)
→ Set per-tx / daily/monthly limits
→ Settle in USDC on Base
Build on the agent-payment rail today.
🔗 cryptoapis.io/products/x402?…
#x402 #Stablecoins #AIAgents #USDC
Binance exits the EU. OKX & Coinbase race for 40% of European spot volume.
But MiCA compliance is non-negotiable — real-time AML screening & KYT on every transaction.
What dev teams must build now 👇
cryptoapis.io/blog/613-okx-a…
#MiCA #AML #KYT #Web3 #CryptoAPIs
🚨 New: KYT Transaction Screening is live.
Screen any on-chain tx for risk in real time — mixers, ransomware, sanctioned wallets — one API call.
Combine with Address Screening for full AML coverage across your stack.
👇 cryptoapis.io/blog/612-we-ju…
#KYT #AML #CryptoCompliance
AWS just integrated x402 into CloudFront — AI agents can now pay publishers in USDC on Base, per request, automatically.
Machine-to-machine payments are going mainstream.
cryptoapis.io/blog/601-aws-c…
#AI #Web3 #USDC #CryptoAPIs
Stablecoin volume: $27.6T in 2025.
MiCA enforcement: live June 2026.
Teams relying on static address screening: at risk.
Here's the 3-layer compliance architecture your payment stack actually needs 🧵
Layer 3: Know the history.
For high-value flows, pull full transaction graphs via Transactions Data + Address History.
Trace second-hop counterparties. Build a FATF Travel Rule-compliant audit trail. Satisfy MiCA's chain-of-custody requirements.
cryptoapis.io/products/trans…
Full developer guide — 3 layers, code examples, MiCA audit log schema, broadcast-vs-finality fix:
cryptoapis.io/blog?utm_sourc…
Try free: app.cryptoapis.io/auth/login…
#StablecoinCompliance #CryptoAML #MiCA #Web3 #BlockchainAPI
🚀 Big news! Crypto APIs is now a verified partner on @n8n_io!
Connect 25+ blockchains to 1,000+ apps. Query addresses, broadcast txs, subscribe to on-chain events & power AI agents. One API key.
🔗 cryptoapis.io
#n8n #BlockchainAutomation #CryptoAPIs
On-chain forensics failures aren't hacks.
They're 60s polling & one-hop checks.
5 war stories, millions lost:
💸 $4.2M — 23min late
🕸️ 340-hop wallet missed
⚡ 19 days dark post-upgrade
🔗 Mempool double-spend
🧩 Polygon blind spot
Breakdown + fixes:
cryptoapis.io/blog/583-on-ch…
📷 Your AI agent can now answer "Has this wallet received any transactions in the last 24 hours?" — in seconds, with zero integration code.
That's live today. Here's how we got there 📷
2/ AI agents + blockchain has always been painful.
3/ What your agent can do now: 📷 Query wallet balances & token holdings 📷 Estimate gas & simulate transactions 📷 Build, sign & broadcast txs locally 📷 Subscribe to on-chain events via webhooks Across EVM, UTXO, Solana, XRP & Kaspa.
4/ Works with @AnthropicAI Claude, Cursor, Windsurf, n8n — and any MCP-compatible client. All 14 servers are open source on npm under @cryptoapis-io. 📷 Get your API key → cryptoapis.io 📷 Full post → cryptoapis.io/blog/559-give-… #MCP #AIAgent
Crypto APIs optimized xpubs HD Wallets for faster #blockchain sync, lower costs, and simpler structures while keeping full multi-chain support. Enterprises get faster sync, lower database load, and better visibility.
Read more: zurl.co/x9vtk
#HDWallets #CryptoAPIs
Blockchain fees impact reliability, user experience, and cost.
For wallets and exchanges, poor fee estimation means stuck transactions and wasted spend. We break down #UTXO vs #EVM fee markets and why real-time estimation matters.
zurl.co/k7vJf
#CryptoAPIs #Blockchain
