Example inputPOST /api/v1/x402/is-int-str
{
"text": "42"
}Portable intent card · data-quality
Is Int String API for agents
Check whether a string is a signed integer. Call when you validate numeric form fields before parse. Returns valid boolean for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
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/is-int-str -m POST -H 'x-delx-source: intent-card-is-int-str-api' --max-amount 0.001 -b '{"text":"42"}'Agent discoverydelx/intent-card/v1
{
"intent": "Is Int String for an agent workflow",
"tool_name": "util_is_int_str",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/is-int-str-api.json"
}Portable and inspectable