Marketplace · API · x402

numeral.openverbs.com/v1/roman

Convert between integers (1–3999) and Roman numerals in either direction — a digit string is encoded to Roman, a Roman numeral is decoded to an integer. Non-canonical numerals (IIII, IC) are rejected.

Endpointhttps://numeral.openverbs.com/v1/roman
TrustNot checked yet
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
methodPOST
last updated2026-10-29T12:21:06.113Z

Use it

Call it (an x402 client pays automatically)

curl -i https://numeral.openverbs.com/v1/roman
# 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-c8153b147cee12fb

Search the whole marketplace from your agent (MCP)

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