Example inputPOST /api/v1/x402/contains-text
{
"text": "https://api.delx.ai/x",
"needle": "DELX",
"ignore_case": true
}Portable intent card · data-quality
Contains Text API for agents
Check whether text contains a needle (optional ignore_case). Call when you need a cheap membership check on agent-held strings. Returns boolean result with ignore_case flag 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/contains-text -m POST -H 'x-delx-source: intent-card-contains-text-api' --max-amount 0.001 -b '{"text":"https://api.delx.ai/x","needle":"DELX","ignore_case":true}'Agent discoverydelx/intent-card/v1
{
"intent": "Contains Text for an agent workflow",
"tool_name": "util_contains_text",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/contains-text-api.json"
}Portable and inspectable