numeral.openverbs.com/v1/ordinal

Format a non-negative integer as an ordinal — both the suffixed form (21st) and the ordinal words (twenty-first).

Endpoint	`https://numeral.openverbs.com/v1/ordinal`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~271 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	0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A
method	POST
last updated	2026-10-29T18:09:37.719Z

Use it

Call it (an x402 client pays automatically)

curl -i https://numeral.openverbs.com/v1/ordinal
# 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/x402-0e4fca410c23e31f

Search the whole marketplace from your agent (MCP)

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