Example inputPOST /api/v1/x402/address-is-zero
{
"address": "0x0000000000000000000000000000000000000000"
}Portable intent card · chain-primitives-local
Zero Address Detector API for agents
Detect the zero EVM address used as empty/burn/default sentinel. Call when validating recipients or detecting unset address fields safely. Returns boolean is_zero plus normalized address as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, 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/address-is-zero -m POST -H 'x-delx-source: intent-card-address-is-zero-api' --max-amount 0.001 -b '{"address":"0x0000000000000000000000000000000000000000"}'Agent discoverydelx/intent-card/v1
{
"intent": "Zero Address Detector for an agent workflow",
"tool_name": "util_address_is_zero",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/address-is-zero-api.json"
}Portable and inspectable