Marketplace · API · x402

base-token-check.fly.dev/v1/token-check

Base ERC-20 check before an agent buys or holds a token. Input: one contract address. Output: allow, warn, or block. Block: not a contract, not an ERC-20, zero supply, or the owner or token contract holds at least 50 percent. Warn: 20 to 50 percent held, proxy (EIP-1967, EIP-1167, or implementation()), or bytecode contains mint or pause. A selector does not prove the public can call it. Concentration covers only the owner and the token contract. Not an audit.

Endpointhttps://base-token-check.fly.dev/v1/token-check
Trust✓ Verified callable · 100% uptime over 1 checks · ~41 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x540c2aA2526C9c8c2fb4632f0fED668C36424Cd5
methodGET
last updated2026-11-01T08:14:23.559Z

Use it

Call it (an x402 client pays automatically)

curl -i https://base-token-check.fly.dev/v1/token-check
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-88dd4c3426532bff

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}