Name: pubmed-search
Price: 0.01 USDC
Availability: InStock

$ man pubmed-search

PRICE / CALL

$0.01

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

CATEGORY

uncategorized

STATUS

● live

NAME

pubmed-search — pubmed biomedical literature search

SYNOPSIS

POST https://x402.org/v1/pubmed-search
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

PubMed biomedical literature search. NIH E-utilities. Returns PMID, title, abstract, authors, journal, MeSH terms, DOI. Federal public.

INPUT — request schema

property	type	description	req?
query	string	PubMed query string. Supports field tags ('cancer[Title]', 'Smith J[Author]'), boolean operators, and MeSH terms.	required
limit	number	Max papers to return. 1-50. Default 10.	optional
date_from	string	Lower bound on publication date (YYYY/MM/DD or YYYY-MM-DD).	optional
date_to	string	Upper bound on publication date (YYYY/MM/DD or YYYY-MM-DD).	optional
sort	string	Result ordering. Default 'relevance'. enum: relevance · pub_date · first_author	optional
include_abstract	boolean	If true (default), include the abstract text per paper. Set false for a smaller, faster response.	optional

OUTPUT — response shape

field	type	description
total	string	Total number of PubMed records matching the query, as reported by NIH E-utilities (string-encoded integer).
returned	string	Count of PMID results actually included in this response payload (string-encoded integer).

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.org/v1/pubmed-search \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# install once
claude mcp add x402 --command "npx x402-deployer-mcp"

# then ask Claude Code:
# "use the pubmed-search tool to ..."

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: web-probebiomedical-searchpubmedliterature-searchresearch-papersmedical-researchncbipmid-lookup
methods: POST
cluster: webprobe
price: $0.01 USDC per call

ADJACENT — other endpoints in webprobe

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wikipedia	Wikipedia API / encyclopedia lookup.	$0.005

/pubmed-search(1)