Example inputPOST /api/v1/x402/json-keys
{
"json_text": "{\"agent\":\"delx\",\"ready\":true}"
}Portable intent card · utility
JSON Object Keys API for agents
List top-level JSON keys. Call when agents must discover object shape without full schema inference. Returns top-level keys of a JSON object. $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/json-keys -m POST -H 'x-delx-source: intent-card-json-keys-api' --max-amount 0.001 -b '{"json_text":"{\"agent\":\"delx\",\"ready\":true}"}'Agent discoverydelx/intent-card/v1
{
"intent": "JSON Object Keys for an agent workflow",
"tool_name": "util_json_keys",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/json-keys-api.json"
}Portable and inspectable