search_papers
Pack: unpaywall · Endpoint: https://gateway.pipeworx.io/unpaywall/mcp
Keyword search across Unpaywall’s coverage of scholarly papers. Optionally restrict to OA-only. Returns up to 50 results per page.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
query | string | yes | Search term |
is_oa | boolean | no | Restrict to open-access papers |
page | number | no | 1-based page (default 1) |
Example call
Arguments
{
"query": "machine learning climate change"
}curl
curl -X POST https://gateway.pipeworx.io/unpaywall/mcp \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"search_papers","arguments":{"query":"machine learning climate change"}}}'TypeScript (@pipeworx/sdk)
import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();
const result = await pipeworx.call('search_papers', {
"query": "machine learning climate change"
});More examples
{
"query": "CRISPR gene therapy",
"is_oa": true,
"page": 1
}Response shape
Always returns: query, page, returned, results
| Field | Type | Description |
|---|---|---|
query | string | Search query used |
page | number | Page number (1-based) |
returned | integer | Number of results returned |
results | array | Search results |
Full JSON Schema
{
"type": "object",
"properties": {
"query": {
"type": "string",
"description": "Search query used"
},
"page": {
"type": "number",
"description": "Page number (1-based)"
},
"returned": {
"type": "integer",
"description": "Number of results returned"
},
"results": {
"type": "array",
"items": {
"type": "object",
"properties": {
"score": {
"type": [
"number",
"null"
],
"description": "Search relevance score"
},
"doi": {
"type": [
"string",
"null"
],
"description": "Digital Object Identifier"
},
"doi_url": {
"type": [
"string",
"null"
],
"description": "DOI resolver URL"
},
"title": {
"type": [
"string",
"null"
],
"description": "Paper title"
},
"genre": {
"type": [
"string",
"null"
],
"description": "Publication type"
},
"year": {
"type": [
"integer",
"null"
],
"description": "Publication year"
},
"published_date": {
"type": [
"string",
"null"
],
"description": "Publication date"
},
"publisher": {
"type": [
"string",
"null"
],
"description": "Publisher name"
},
"journal_name": {
"type": [
"string",
"null"
],
"description": "Journal name"
},
"journal_issns": {
"type": [
"string",
"null"
],
"description": "Journal ISSN(s)"
},
"journal_is_oa": {
"type": [
"boolean",
"null"
],
"description": "Is journal open-access"
},
"journal_in_doaj": {
"type": [
"boolean",
"null"
],
"description": "Is journal in DOAJ"
},
"is_oa": {
"type": "boolean",
"description": "Is OA version available"
},
"oa_status": {
"type": [
"string",
"null"
],
"description": "OA status category"
},
"has_repository_copy": {
"type": [
"boolean",
"null"
],
"description": "Available in repository"
},
"authors": {
"type": "array",
"items": {
"type": "string"
},
"description": "Author names"
},
"best_location": {
"type": [
"object",
"null"
],
"properties": {
"url": {
"type": [
"string",
"null"
]
},
"pdf_url": {
"type": [
"string",
"null"
]
},
"host_type": {
"type": [
"string",
"null"
]
},
"version": {
"type": [
"string",
"null"
]
},
"license": {
"type": [
"string",
"null"
]
},
"repository": {
"type": [
"string",
"null"
]
},
"evidence": {
"type": [
"string",
"null"
]
}
}
},
"other_locations": {
"type": "array",
"items": {
"type": "object",
"properties": {
"url": {
"type": [
"string",
"null"
]
},
"pdf_url": {
"type": [
"string",
"null"
]
},
"host_type": {
"type": [
"string",
"null"
]
},
"version": {
"type": [
"string",
"null"
]
},
"license": {
"type": [
"string",
"null"
]
},
"repository": {
"type": [
"string",
"null"
]
},
"evidence": {
"type": [
"string",
"null"
]
}
}
}
}
}
},
"description": "Search results"
}
},
"required": [
"query",
"page",
"returned",
"results"
]
}Connect
Add this to your MCP client config, or use one-click install buttons:
{
"mcpServers": {
"unpaywall": {
"url": "https://gateway.pipeworx.io/unpaywall/mcp"
}
}
}See Getting Started for client-specific install steps.