Marketplace · API · x402

presign-guard.fizzl.eu/v1/approvals

Wallet approval audit (green/orange/red, grade, one-line summary): every open ERC-20 allowance of an EVM wallet with who the spender is (flagged, plain wallet, unverified, unlimited) and which ones to revoke. Bulk: 100 checks for $0.80 via /v1/credits.

Endpoint	`https://presign-guard.fizzl.eu/v1/approvals`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~756 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x6B0F4651eD42893ab58139938175E4a69f175F25
method	GET
last updated	2026-11-05T21:04:54.945Z

Use it

Call it (an x402 client pays automatically)

curl -i https://presign-guard.fizzl.eu/v1/approvals
# 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-b714733f43971329

Search the whole marketplace from your agent (MCP)

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

presign-guard.fizzl.eu/v1/approvals

Use it

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