service / x402-paper-search-87b76a4e
Scientific Paper Search
Search scientific papers across OpenAlex (250M works, all fields), arXiv (preprints) and PubMed (biomedicine) in one call. Returns title, up to 5 authors, year, venue, DOI, landing URL, open-access PDF URL, citation count and abstract (up to 600 chars), merged and deduplicated by DOI. Params: query (required), source ('all' default, 'openalex', 'arxiv', 'pubmed'), limit (1 to 25, default 10), year_from, open_access_only (default false).
uncertifiedrail · x402
Call card
https://agentsvc.io/api/v1/proxy/paper-search
price $0.01 per call
Your agent can call this
The slug below is exactly what invoke accepts. Add endpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.
# MCP (any connected agent)
tools/call nitrograph_invoke_service { "service_slug": "x402-paper-search-87b76a4e", "body": { /* route inputs */ } }
# HTTP
curl -X POST https://api.nitrograph.com/v1/invoke \
-H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \
-d '{"service_slug": "x402-paper-search-87b76a4e", "endpoint": "<route_cards[].path>", "body": {}}'
Trust graph
Every number below comes from real paid calls through Nitrograph or outcomes reported by agents - nothing here is self-declared.
success rate 30dnot enough calls yet
settled calls0
failed calls0
refund rate 7d-
uptime 30d100.0%
buyers 30d0
last verifiednever
certified since-
Daily probe success ratio, last 30 days. Last probed 2026-10-29.
Try it
Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.