com.chaink9/chaink9
Token risk checks on BSC, ETH, Base and Arc: trades the token on a fork. Paid in USDC via x402.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http chaink9 'https://api.chaink9.com/mcp'{
"mcpServers": {
"chaink9": {
"type": "http",
"url": "https://api.chaink9.com/mcp"
}
}
}chaink9-mcpclaude mcp add chaink9 -e 'CHAINK9_PRIVATE_KEY=<your chaink9_private_key>' -e 'CHAINK9_MAX_USD_PER_CALL=<CHAINK9_MAX_USD_PER_CALL>' -e 'CHAINK9_MAX_USD_PER_DAY=<CHAINK9_MAX_USD_PER_DAY>' -- npx -y chaink9-mcp@0.1.2{
"mcpServers": {
"chaink9": {
"command": "npx",
"args": [
"-y",
"chaink9-mcp@0.1.2"
],
"env": {
"CHAINK9_PRIVATE_KEY": "<your chaink9_private_key>",
"CHAINK9_MAX_USD_PER_CALL": "<CHAINK9_MAX_USD_PER_CALL>",
"CHAINK9_MAX_USD_PER_DAY": "<CHAINK9_MAX_USD_PER_DAY>"
}
}
}
}Environment variables
CHAINK9_PRIVATE_KEYrequired secret Dedicated Base wallet key that pays in USDC (0x + 64 hex)CHAINK9_MAX_USD_PER_CALLMaximum USD per single payment (default 0.05)CHAINK9_MAX_USD_PER_DAYMaximum USD spent per day (default 1)
Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
ChainK9 MCP server
Token risk checks for AI agents on BNB Smart Chain, Ethereum and Base.
Most token scanners read flags from someone else's API. ChainK9 does what a buyer would: it forks the chain and really buys and sells the token through its market (PancakeSwap or Uniswap V2, V3 or V4, hooks included), then runs 60+ checks. A honeypot is caught by what it does, not by what its code looks like.
Each successful call is paid automatically in USDC on Base with the x402 protocol, from a wallet you choose. There is no account and no API key, and failed calls (bad input, not a token, no liquidity, engine busy) are free.
Tools
The tool list is read live from api.chaink9.com, so new products appear without updating this package.
| Tool | Price | What it does |
|---|---|---|
scan | $0.02 | Full check of a token: honeypot, buy/sell taxes and how they change, owner pause, blacklist, mint and confiscation powers, limits, liquidity, upgrade authority. Verdict: danger, caution or ok. |
scan-lite | $0.005 | Faster check for bots (2–5 s): one real buy and sell plus the contract reads. Skips the extra trade and time-travel probes. |
scan-ultra | $0.05 | Everything in scan, plus who holds the token: top holder and top-10 share, and whether one wallet can pull the liquidity. |
report | $0.002 | The latest stored scan of a token, without a new one. |
feed | $0.002 | Tokens that just got a market, with a verdict where scanned. |
simulate-trade | $0.02 | Buy or sell for a given wallet on a fork, with its real balances. |
exit-check | $0.04 | Test up to four sell sizes from a wallet's real balance. |
transaction-preview | $0.02 | Run any transaction on a fork and see balance changes. |
liquidity-report | $0.003 | The token's pool: reserves and LP tokens (V2), or liquidity and price (V3/V4). |
launch-feed | $0.003 | New markets that are actually funded, optionally by verdict. |
risk-changes | $0.002 | What changed between a token's last two scans. |
deployer-report | $0.005 | A token's verified creator and their other known tokens. |
portfolio-screen | $0.005 | A wallet's balances of given tokens, riskiest first. |
Every tool takes chain: bsc (default), eth or base.
Setup
- Make a new wallet just for this and put a few dollars of USDC on Base in it. It needs no ETH: x402 payments are signatures, and the payment service pays the gas.
- Add the server to your MCP client with that wallet's private key.
Claude Code:
claude mcp add chaink9 -e CHAINK9_PRIVATE_KEY=0x... -- npx -y chaink9-mcpCursor, Claude Desktop or any client with a JSON config:
{
"mcpServers": {
"chaink9": {
"command": "npx",
"args": ["-y", "chaink9-mcp"],
"env": { "CHAINK9_PRIVATE_KEY": "0x..." }
}
}
}Claude Desktop can also install the .mcpb bundle from the
releases with a click.
Hosted server, no install
https://api.chaink9.com/mcp serves the same tools over streamable HTTP, plus a free
verdict tool (the stored verdict and which checks flagged it). Paid tools there take the
payment inside the MCP call, x402-style, so they need an x402-aware client such as
@x402/mcp's createx402MCPClient. Ordinary MCP
clients can connect and use verdict; to pay from those, use the package above.
Limits
| Variable | Default | Meaning |
|---|---|---|
CHAINK9_PRIVATE_KEY | (required) | Private key of the dedicated Base wallet that pays. |
CHAINK9_MAX_USD_PER_CALL | 0.05 | Any single payment above this is refused. |
CHAINK9_MAX_USD_PER_DAY | 1 | Stops paying once this much was spent today (UTC). |
The daily total is kept in ~/.chaink9-mcp/spend.json. The wallet only ever signs payments
on Base, and the key never leaves your machine.
Disclaimer
ChainK9 reports what happened when it traded the token on a private copy of its blockchain at the block shown. That is evidence, not a guarantee: a token's owner can change its rules after the scan, and traps no check tests can be missed. Nothing here is financial advice; you trade at your own risk.
Frequently asked questions
What is com.chaink9/chaink9?
Token risk checks on BSC, ETH, Base and Arc: trades the token on a fork. Paid in USDC via x402.
How do I install com.chaink9/chaink9?
It runs as a remote server. In Claude Code: claude mcp add --transport http chaink9 'https://api.chaink9.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does com.chaink9/chaink9 need an API key?
Yes. It expects CHAINK9_PRIVATE_KEY, which you set in its configuration.
Is com.chaink9/chaink9 open source?
Yes. Its code is on GitHub under the MIT license.
Who maintains com.chaink9/chaink9?
It is published by ChainK9. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.