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Connect your AI agent via MCP

On-chain compliance intelligence for any MCP-compatible agent. Free stablecoin-freeze, token-security and approvals checks; paid wallet screening, KYT risk and consumer-protection verdicts — settled per call in USDC on Base via x402. No API key, no account.

blockchainanalysis · MCP
live
▸agent → screen_address { address: "0x5231…90F1", chain: "ETH" }
◂server 402 Payment Required · $1.50 USDC · Base
▸agent ✎ wallet signs payment → retries
◂server ✓ 200 3 labels · SANCTIONED (OFAC SDN) · CRITICAL
no API keyno accountpay-per-call
Endpoint
https://blockchainanalysis.io/api/mcp
Add to claude_desktop_config.json
{
  "mcpServers": {
    "blockchainanalysis": {
      "url": "https://blockchainanalysis.io/api/mcp"
    }
  }
}
Free tools
Free
check_stablecoin_freeze

Is a wallet blacklisted by Tether (USDT) or Circle (USDC)? Reads the issuer blacklist directly on-chain.

ETH, BSC, Polygon, Arbitrum, Optimism, Base, Avalanche, Tron, Solana
Free
get_freeze_events

The freeze HISTORY: query the ledger of issuer freeze / unfreeze / destroy events by address, chain, kind or recency.

ETH, Polygon, Optimism, Tron, BSC, Arbitrum, Base, Avalanche
Free
check_token_security

Buy/sell simulation → honeypot, extreme tax, name/symbol impersonation, active mint authority. No transaction sent.

Base, BNB Chain, Ethereum, Optimism, Polygon, Arbitrum
Free
check_token_approvals

A wallet's active ERC-20 approvals and who can move its funds, risk-scored against 1B+ entity labels.

Ethereum
Free
list_supported_chains

Discover the server's tools, supported chains, and pricing before calling.

Discovery · all tools
Paid tools · pay-per-call via x402 (USDC on Base)
$1.50
per call · x402
screen_address

Screen a wallet against 1B+ entity labels (sanctions OFAC/EU/UN/UK/Swiss, scam, mixer, exchange) with threat levels.

ETH, BSC, Polygon, Arbitrum, Optimism, Base, Avalanche, Tron, Solana, BTC
$2.00
per call · x402
kyt_risk

KYT risk verdict: sanctions + entity + VASP/jurisdiction score + cluster context → one risk level with flags.

50+ chains
$1.00
per call · x402
oracle_verdict

Consumer-protection verdict (safe / caution / high_risk) + 0-100 score + reasons — 'is it safe to interact?'

BTC, ETH, BSC, Polygon, Arbitrum, Optimism, Base, and more
How paid tools work

x402 — agents pay per call, no account

When an agent calls a paid tool, the server replies with an x402 payment request: the exact amount in USDC on Base, and where to send it. The agent's wallet signs the payment and retries — the tool then returns its result. No API key, no sign-up, no subscription. Free tools work with no payment at all. Volume users who prefer accounts and invoicing can use the BlockchainAnalysis API instead.

What the data is

The same intelligence behind the BlockchainAnalysis platform — 1B+ entity labels, a multi-list sanctions cascade (OFAC, EU, UN, UK HMT, Swiss SECO), on-chain stablecoin-issuer blacklists, and contract-risk simulation. Results are observational and time-bound, not legal advice — verify independently.