Shipping x402 USDC Payments to Base + Solana Mainnet for an MCP Server
How ChainAnalyzer's blockchain AML server became one of the first production MCP integrations with multi-chain crypto micropayments
Series
Building ChainAnalyzer in Public
A behind-the-scenes engineering log from refinancier, inc. as we build
ChainAnalyzer — a multi-chain blockchain AML platform — and ship it to
production. Covers MCP server design, x402 micropayments, ML anomaly
detection, FastAPI + SvelteKit architecture, and the realities of
selling compliance tooling in Japan.
Posts in this series
Drained for $7.95: How a Solana Phishing Scam Built a Multi-Chain AML Platform
Every product has an origin story. Mine starts with getting drained for $7.95 on a Sunday afternoon, in a Discord I trusted.
$5.3M Address Poisoning Network: Two Months Later
In February 2026, I exposed a cross-chain address poisoning network moving $5.3M across Avalanche, Ethereum, and Polygon. Two months later, I returned to the same wallets. The network is still running — and it's bigger.
