Example inputPOST /api/v1/x402/citation-extract
{
"text": "See https://example.com/a and doi:10.1000/xyz123"
}Portable intent card · retrieval-adjacent
Citation Extract API for agents
Harvest URL and DOI citation patterns from text without network access — call when harvesting URL/DOI citation patterns without network. 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/citation-extract -m POST -H 'x-delx-source: intent-card-citation-extract-api' --max-amount 0.003 -b '{"text":"See https://example.com/a and doi:10.1000/xyz123"}'Agent discoverydelx/intent-card/v1
{
"intent": "Citation Extract for an agent workflow",
"tool_name": "util_citation_extract",
"price_usdc": "0.003",
"machine_url": "https://commerce.delx.ai/intents/citation-extract-api.json"
}Portable and inspectable