Example inputPOST /api/v1/x402/int-to-roman
{
"n": 42
}Portable intent card · utility
Integer → Roman API for agents
Integer → Roman numerals. Use for outlines, chapter labels, or display formatting in agent UIs. Returns a Roman numeral for a positive integer. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.
Intent to transaction
One command, attributed.
The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/int-to-roman -m POST -H 'x-delx-source: intent-card-int-to-roman-api' --max-amount 0.001 -b '{"n":42}'Agent discoverydelx/intent-card/v1
{
"intent": "Integer → Roman for an agent workflow",
"tool_name": "util_int_to_roman",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/int-to-roman-api.json"
}Portable and inspectable