Example inputPOST /api/v1/x402/is-subset
{
"a": [
1,
2
],
"b": [
1,
2,
3
]
}Portable intent card · data-quality
Is Subset API for agents
Check whether list a is subset of list b. Call when you verify required tags are present in agent sets. Returns subset 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-subset -m POST -H 'x-delx-source: intent-card-is-subset-api' --max-amount 0.001 -b '{"a":[1,2],"b":[1,2,3]}'Agent discoverydelx/intent-card/v1
{
"intent": "Is Subset for an agent workflow",
"tool_name": "util_is_subset",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/is-subset-api.json"
}Portable and inspectable