InputPOST /api/v1/x402/citation-extract
{
"text": "See https://example.com/a and doi:10.1000/xyz123"
}Retrieval-adjacent content prep · retrieval-adjacent
Delx Citation Extract
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.
One-command purchase
Run it from an agent.
No account or API key. AgentCash reads the 402 challenge, pays no more than the declared cap, retries the request and returns the result.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/citation-extract -m POST -H 'x-delx-source: product-page' --max-amount 0.003 -b '{"text":"See https://example.com/a and doi:10.1000/xyz123"}'Delivered resultapplication/json
{
"schema": "delx/util-citation-extract/v1",
"url_count": 1,
"doi_count": 1,
"urls": [
"https://example.com/a"
],
"dois": [
"10.1000/xyz123"
],
"advisory": "Pattern harvest only; links are not fetched."
}Machine-readable evidence