BlockchainAnalysis MCP Server

by blockchainanalysis Your server? Claim it

answering

BlockchainAnalysis is answering right now. Last checked moments ago. It exposes 11 tools.

Compliance MCP for AI agents: sanctions & KYT screening on 50+ chains, stablecoin-freeze, oracle.

Uptime history 47 days of history · worst day 95%

47 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

1349 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 15

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 20 August 2026. No other catalogue keeps this.

21 Aug 2 tools appeared screen_agent_wallet, screen_agent_wallet_attested

20 Aug 9 tools changed the parameters they ask for check_stablecoin_freeze, check_token_approvals, check_token_security and 6 more

20 Aug 4 tool descriptions were rewritten kyt_risk, kyt_tx, oracle_verdict and 1 more

Nothing serious here today

Today is the operative word: we check BlockchainAnalysis every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://blockchainanalysis.io/api/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://blockchainanalysis.io/api/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://blockchainanalysis.io/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://blockchainanalysis.io/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://blockchainanalysis.io/api/mcp"
    }
  }
}

Available tools 11

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

screen

screen_address

Screen a wallet against BlockchainAnalysis's 1B+ entity-label dataset: sanctions (OFAC / EU / UN / UK HMT / Swiss SECO), scam, phishing, exploit, mixer, exchange, and more — each label carries a threat level (SAFE→CRITICAL), source, and confidence. Works across major EVM chains plus TRON, SOL, and BTC. Paid per call via x402 (USDC on Base).

screen_agent_wallet

Boolean compliance verdict for an agent wallet or counterparty: clear / flagged / unknown, plus the top risk category, screened against BA's 1B+ entity labels (sanctions, scam, phishing, exploit, mixer) and live stablecoin freeze state. Deliberately a verdict only — the label detail, freeze history, and scores are in the paid screen_address / kyt_risk tools, and a signed, on-chain-anchored proof is in the paid screen_agent_wallet_attested tool. Free.

screen_agent_wallet_attested

Screen an agent wallet and return a SIGNED, on-chain-anchored compliance attestation: the verdict (clear / flagged / unknown) plus an EIP-712 (secp256k1) signature over the result and a BA Stamp anchor, so a third party or a smart contract can verify it offline via ecrecover without trusting us live. The free screen_agent_wallet tool returns the verdict only. Paid per call via x402 (USDC on Base).

kyt

kyt_risk

Assess a wallet's KYT (Know-Your-Transaction) risk: sanctions + entity classification + VASP/jurisdiction score + cluster context → one risk verdict (critical / high / medium / low / unknown) with flags. Paid per call via x402 (USDC on Base).

kyt_tx

Transaction KYT: screens BOTH counterparties of a transfer (from → to) against sanctions + entity + VASP + cluster, returning a combined risk level, a block/review/allow recommendation, and directional FROM:/TO: flags. Paid per call via x402 (USDC on Base).

token

check_token_approvals

List a wallet's active ERC-20 token approvals on Ethereum and who can move its funds — risk-scored against BA's 1B+ entity labels (scam / phishing / exploit / sanctioned spenders), flagging unlimited allowances and stale grants. The wallet's attack surface at a glance. Read-only. Ethereum only. Free.

check_token_security

Simulate a buy-and-sell of an ERC-20 token on its main DEXes to surface honeypots (tokens you can buy but not sell), extreme transfer taxes, name/symbol impersonation, and active mint authority — cross-referenced against BA's 1B+ entity labels. Reports observed facts (e.g. 'sell simulation reverted'), not verdicts. Live on Base, BNB Chain, Ethereum, Optimism, Polygon, Arbitrum. No transaction is sent. Free.

freeze

get_freeze_events

Query the canonical stablecoin freeze ledger — the HISTORY of freeze / unfreeze / destroy events by Tether (USDT), Circle (USDC/EURC), Paxos (USDP) and First Digital (FDUSD), sourced from the issuers' own on-chain blacklist events across Ethereum, Polygon, Optimism, TRON and more. Filter by frozen address, chain, kind, or time; omit all filters for the most recent events. This is the EVENT HISTORY — to check whether an address is frozen right now, use check_stablecoin_freeze instead. Each row is a verifiable on-chain fact (issuer acted on address at block/time); it never states the cause. Free.

oracle

oracle_verdict

Consumer-protection verdict for a wallet or contract: a normalized verdict (safe / caution / high_risk) with a 0-100 score, confidence tier, and plain-language reasons. Answers 'is it safe to interact with this address?' Paid per call via x402 (USDC on Base).

stablecoin

check_stablecoin_freeze

Check whether Tether (USDT) or Circle (USDC) have blacklisted a wallet address on-chain. Reads the issuer's blacklist function directly across 15 chains (ETH, BSC, POLYGON, ARBITRUM, OPTIMISM, BASE, AVALANCHE, PLASMA, HYPEREVM, STABLE, INK, BERACHAIN, ROBINHOOD, TRON, SOL). A frozen address can no longer send or receive that stablecoin. Also reports whether the address was PREVIOUSLY frozen and later unfrozen (a prior-freeze signal from the freeze ledger). The result reports the observed on-chain fact (frozen / not frozen at check time), never the cause of a freeze. Free.

supported

list_supported_chains

List the BlockchainAnalysis MCP tools, the chains each supports, and pricing. Call this first to discover what the server can do (and which calls are free vs paid) before invoking a tool. Free.

Endpoints

URL	Transport	State	Latency	Checked
https://blockchainanalysis.io/api/mcp	streamable-http	answering	792 ms	0 min ago

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BlockchainAnalysis — questions

Answers built from our own checks of this server.

What can BlockchainAnalysis do?

It exposes 11 tools, read directly from the server on our last check. Among them: check_stablecoin_freeze, check_token_approvals, check_token_security, get_freeze_events, kyt_risk, kyt_tx and 5 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is BlockchainAnalysis mostly used for?

Its tools cluster around screen, kyt and token. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is BlockchainAnalysis working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 1349 ms. The bar chart above shows every period we have measured.

How do I connect BlockchainAnalysis?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does BlockchainAnalysis need an API key?

No. BlockchainAnalysis completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 11 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is BlockchainAnalysis?

It answers our handshake in 1349 ms on average, which is faster than 3% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.