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NCBI E-utilities PubMed Central Full-Text Article Search
x402
NCBI E-utilities PubMed Central Full-Text Article Search is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Searches PubMed Central full-text articles using NCBI E-utilities and returns matching article UIDs for a given query string.
Price / call$0.02
Success—
StatusUnknown
How this service works
Search PubMed Central full-text articles and return matching UIDs for query {q} via E-utilities. Query: ?q= Returns JSON.
Output
Returns a JSON object containing matching PubMed Central article UIDs (PMCIDs) for the given search query, along with metadata such as result count — suitable for downstream retrieval of full article content via NCBI E-utilities.
Example use cases
Example prompt
“Search PubMed Central for full-text articles about CRISPR gene editing and give me the article UIDs I can use to pull the papers.”
Technical details
Endpoint
POSThttps://clonecho.builda.company/x402/s/ncbi-esearch-pmcWhen to prefer
Use this endpoint when you need to search PubMed Central's full-text article database and retrieve article UIDs for biomedical, life science, or medical research queries. Prefer this over general web search when you specifically need open-access PMC full-text article identifiers compatible with NCBI E-utilities workflows for downstream content retrieval.
Side effects
- Empty result set when query matches no PMC articles (returns zero UIDs)
- Malformed or missing query parameter returns an error or empty response
- NCBI E-utilities rate limits may cause transient failures under high request volume
- Very broad queries may return large UID lists that are difficult to paginate
- Spelling errors or non-standard terminology may yield poor or zero results
Tags
x402
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