MCP server

Onyx AML

trade.onyxprotocol/onyx-aml

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Crypto address risk checks for agents: USDT/USDC blacklists, sanctions, scam lists, poisoning

Website

At a glance

Type

MCP server

Publisher

onyxprotocol.trade (verified by the MCP Registry)

Status

Working at last check

Tools

8

Token cost

About 1,296 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http onyx-aml https://onyxprotocol.trade/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.onyx-aml]
url = "https://onyxprotocol.trade/mcp"

Gemini CLI

{"mcpServers":{"onyx-aml":{"httpUrl":"https://onyxprotocol.trade/mcp"}}}

Cursor

{"mcpServers":{"onyx-aml":{"url":"https://onyxprotocol.trade/mcp"}}}

VS Code

{"servers":{"onyx-aml":{"type":"http","url":"https://onyxprotocol.trade/mcp"}}}

Antigravity

agy mcp add onyx-aml https://onyxprotocol.trade/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"onyx-aml","server_url":"https://onyxprotocol.trade/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"onyx-aml","server_url":"https://onyxprotocol.trade/mcp"}

Tools

• onyx_balance ~45 tokens
  How much credit your API key has left, and the current prices. Free.
• onyx_decide ~280 tokens
  Return allow / review / deny for a counterparty address against your own risk policy, with the reasons named. Use this before every outbound transfer. Checks issuer blacklists (USDT, USDC), sanctions across six EVM chains plus the OFAC list, open scam databases, community reports and behavioural pat
• onyx_payment_info ~91 tokens
  Machine-readable payment terms: which asset and network to send, the address, prices per operation, and how to claim an API key from the address you paid from. No account or signup is involved. Free, and works without a key.
• onyx_preflight ~310 tokens
  Operational safety check for a payment, separate from risk screening. Detects address poisoning (a lookalike planted in your history so it gets copied instead of the real address), contract recipients that would swallow the tokens, and addresses that behave differently on different chains. Pass know
• onyx_screen ~135 tokens
  Return the raw risk markers for one address: risk zone, issuer blacklists, sanctions coverage, scam databases, community reports, address age, balance and exchange attribution where known. Use this when you want the facts rather than a decision. Costs credit.
• onyx_screen_batch ~145 tokens
  Screen up to 50 addresses in a single call, for example before a mass payout. Priced per address, and only addresses actually screened are charged. Each result carries facts_complete so you can tell whether the behavioural facts finished loading.
• onyx_trace ~122 tokens
  Multi-hop trace of outgoing flows from an address, with attribution where a node is known (exchange labels, deposit addresses). Use it to establish provenance after receiving funds. Costs more than a screening call.
• onyx_watch ~168 tokens
  Subscribe to an address. When it enters an issuer blacklist, a sanctions list or a scam database, we POST a signed event to your callback URL. A one-off check cannot warn you about a freeze that has not happened yet. Billed per address per day. The callback must be public https.

Browse

• Payments
• Databases
• Crypto and blockchains

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