Example inputPOST /api/v1/x402/keyword-density
{
"text": "agent tools for agent commerce",
"keywords": [
"agent",
"commerce"
]
}Portable intent card · retrieval-adjacent
Keyword Density API for agents
Measure keyword density inside caller-supplied text — call when measuring keyword density in held text. Use on text/URLs the agent already holds—adjacent to high-volume extract demand, never advertised as general web or X search. Returns deterministic machine-readable JSON for $0.003 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, and no claim of live chain tip, web search, or media generation. Results are advisory; the caller owns authorization 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/keyword-density -m POST -H 'x-delx-source: intent-card-keyword-density-api' --max-amount 0.003 -b '{"text":"agent tools for agent commerce","keywords":["agent","commerce"]}'Agent discoverydelx/intent-card/v1
{
"intent": "Keyword Density for an agent workflow",
"tool_name": "util_keyword_density",
"price_usdc": "0.003",
"machine_url": "https://commerce.delx.ai/intents/keyword-density-api.json"
}Portable and inspectable