Marketplace · API · x402

api.agentstools.dev/crypto/hash

Compute keccak256/sha256, a 4-byte function selector, an event topic0, or an ENS namehash/labelhash from a string or hex input.

Endpoint	`https://api.agentstools.dev/crypto/hash`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~1053 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	0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493
method	GET
last updated	2026-10-25T10:12:40.782Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.agentstools.dev/crypto/hash
# 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/x402-1260e69c28a41266

Search the whole marketplace from your agent (MCP)

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