Token Safety & Contract Risk API

Token contract safety scanner — honeypot, tax, proxy risk, blacklist, ownership. GoPlus-powered. Pay-per-call via x402 (USDC on Base L2) — no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace — 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart — MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "token-safety": {
      "url": "https://token-safety.api.klymax402.com/mcp"
    }
  }
}

Quickstart — HTTP (x402)

curl "https://token-safety.api.klymax402.com/api/check?address=0x...&chain=base"
→ 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 → sign → retry cycle automatically. No manual key exchange.

Tools

| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
| token_check_safety | GET | /api/check | $0.003 | Check token contract safety and risk score |

token_check_safety

Use this when you need to check if a token is safe before buying or interacting with it. Returns a comprehensive safety report in JSON.

Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| address | string | yes | Token contract address (e.g. 0x...) |
| chain | string | no | Chain to check on: ethereum or base (default: ethereum) |

Returns

- isHoneypot — whether the token traps buyers (cannot sell)
- ownershipRenounced — whether the contract owner has renounced control
- isProxy — whether the contract is upgradeable (proxy risk)
- buyTax / sellTax — percentage tax on buy/sell transactions
- maxTxPercent — maximum transaction size as percent of supply
- liquidityLocked — whether liquidity is locked
- hasBlacklist — whether the contract has a blacklist function
- holderCount — total number of token holders
- riskScore — overall risk score (0 = safe, 100 = dangerous)

Example response:

{"isHoneypot":false,"ownershipRenounced":true,"isProxy":false,"buyTax":0,"sellTax":0,"maxTxPercent":100,"liquidityLocked":true,"hasBlacklist":false,"holderCount":15420,"riskScore":12}

When to use: before buying any new or unknown token — essential for rug-pull protection and due diligence.

Not for: token prices (use dex_get_swap_quote), wallet balance (use wallet_get_portfolio), holder distribution (use token_get_holder_analysis).

Example agent prompts

- "Is this token safe to buy? 0x1234...5678 on Base"
- "Check for honeypot risk before I swap into this contract"
- "Run a rug-pull check on this new token launch before I ape in"

Payment

- Protocol: x402 — HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (eip155:8453)
- Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents — one wallet, USDC on Base, zero signup.

- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats

License

MIT