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SignalDesk AI – Europe PMC Article Lookup
x402
SignalDesk AI – Europe PMC Article Lookup is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-13).
Fetches bibliographic metadata for a scientific article from Europe PMC by record ID and source database
Price / call$0.003
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
Returns a JSON object with found status, and if found: article title, DOI, Europe PMC URL, publication year, source, authors, journal name, and open access flag. Also includes source provenance metadata such as the upstream API URL, fetch timestamp, and expiry.
Example use cases
Verify citation details for a paper
“I have a PubMed article with ID 33761872 — can you pull the full citation info from Europe PMC, including the DOI, journal name, and publication year?”
Check open access status of a study
“Look up PubMed article 28825719 in Europe PMC and tell me if it's open access, who the authors are, and what journal it was published in.”
Enrich a reference list with metadata
“I need the title, DOI, and year for the Europe PMC article with source MED and ID 25378310 — can you grab that metadata for me?”
Technical details
Endpoint
GEThttps://x402-agent.kariguetoazul.workers.dev/api/research/europepmc-article?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need fast, structured bibliographic metadata for a specific article already identified by its Europe PMC record ID and source (MED for MEDLINE/PubMed, PMC for PubMed Central full-text, AGR for agricultural literature, CBA for Chinese biomedical). Prefer this over full-text search endpoints when you already have the record identifier and just need citation details, open access status, or DOI resolution. It is especially useful for enriching reference lists, verifying citations, or checking open access availability programmatically.
Side effects
- Record not found (found: false) if the ID or source is incorrect
- Invalid source enum value returns a validation error
- ID format violation (non-alphanumeric characters) rejected by schema
- Network or upstream Europe PMC API unavailability may return an error
- Rate limit or quota exhaustion on the paid endpoint returns an HTTP 402 or quota error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"found": true,
"record": {
"id": "31452104",
"doi": "10.1007/978-1-4939-9752-7_10",
"url": "https://europepmc.org/article/MED/31452104",
"year": "2019",
"title": "Molegro Virtual Docker for Docking.",
"source": "MED",
"authors": "Bitencourt-Ferreira G, de Azevedo WF.",
"journal": "Methods Mol Biol",
"open_access": false
},
"source": {
"provider": "Europe PMC public metadata",
"expires_at": "2026-10-03T09:44:49.961Z",
"fetched_at": "2026-10-02T09:44:49.961Z",
"source_url": "https://www.ebi.ac.uk/europepmc/webservices/rest/search?query=EXT_ID%3A31452104%20AND%20SRC%3AMED&format=json&pageSize=1",
"transformed": true
}
}
}Tags
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