infinihash-kyt-mcp
MCP server for Infinihash KYT — real-time blockchain transaction monitoring, sanctions screening, and SAR generation as MCP tools.
Gives any MCP-compatible agent (Claude Desktop, Cursor, Cline, automation pipelines) access to:
kyt_screen_wallet — screen a wallet against OFAC SDN + 18.8K+ risk labels in under 200mskyt_lookup_intel — get known intel tags for an address (no full screen)kyt_recent_screenings — what your org has been screeningkyt_create_case — open a compliance case from a risky screeningkyt_list_cases — list open / SAR-pending / closed caseskyt_get_case — fetch one case with evidence noteskyt_add_case_note — append investigation notes to the audit trailkyt_generate_sar — render a FinCEN-aligned SAR draftkyt_stats — coverage stats (per-source breakdown)kyt_health — backend health probe
Hosted (no install)
Connect straight from Claude.ai, Claude Desktop, or any MCP client that supports remote servers:
- URL:
https://mcp.infinihash.com/mcp. Sign in with your KYT API key when prompted (OAuth).
- No key yet?
https://mcp.infinihash.com/free/mcp gives anonymous, basic sanctions screening.
- Claude Code:
claude mcp add --transport http infinihash-kyt https://mcp.infinihash.com/mcp
The hosted server adds preflight_payment: call it before an agent sends crypto. It returns ALLOW, REVIEW or BLOCK plus an Ed25519-signed receipt you can keep for examiners (verify_receipt checks it; public key at /.well-known/kyt-receipt-key).
Install (local, stdio)
Or:
pip install infinihash-kyt-mcp
Get an API key
Free tier — 100 screenings/month, no credit card required, key live in <60 seconds:
→ https://kyt.infinihash.com/kyt/settings/api-keys
Claude Desktop config
Add to ~/Library/Application Support/Claude/claude_desktop_config.json:
{
"mcpServers": {
"infinihash-kyt": {
"command": "uvx",
"args": ["infinihash-kyt-mcp"],
"env": {
"KYT_API_KEY": "kyt_your_key_here"
}
}
}
}
Cursor / Cline
Same JSON, different file. See the docs.
Example prompts after install
Screen wallet 0x722122dF12D4e14e13Ac3b6895a86e84145b6967 — is it sanctioned?
Open a case for the Tornado Cash address I just screened.
Generate a SAR draft for case <id> and email me a summary of what to include.
What labels do we have on 0x... — quick check, no full screen.
Why KYT over alternatives
- Published pricing — no "contact sales" — Free $0, Starter $49/mo (500 screenings), Pro $199/mo (3,000 screenings)
- Source transparency — every label tiered (T1 OFAC, T2 threat intel, T3 on-chain, T4 community) and source-attributed at /trust
- Self-serve in minutes — API key in under a minute, no procurement cycle
- Sub-200ms screens — fast-path cache returns sanctioned wallets in milliseconds
Compare honestly vs TRM Labs + Chainalysis Reactor Lite: https://kyt.infinihash.com/kyt/compare
Compliance note
KYT is a decision-support tool, not a SAR filing service. Your organisation remains solely responsible for SAR submissions via the BSA E-Filing System and for all regulatory determinations.
Links
MIT licensed.