Example inputPOST /api/v1/x402/mask-string
{
"text": "hello agent world"
}Portable intent card · utility
Mask Sensitive Strings API for agents
Mask sensitive middle characters. Use before logging secrets, account numbers, or tokens that must stay partially hidden. Returns a masked string suitable for audit trails—never stores the original beyond the request. $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/mask-string -m POST -H 'x-delx-source: intent-card-mask-string-api' --max-amount 0.001 -b '{"text":"hello agent world"}'Agent discoverydelx/intent-card/v1
{
"intent": "Mask Sensitive Strings for an agent workflow",
"tool_name": "util_mask_string",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/mask-string-api.json"
}Portable and inspectable