Unpaywall MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| UNPAYWALL_EMAIL | Yes | Your email address (required by Unpaywall for polite usage) |
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| unpaywall_get_by_doiA | Fetch Unpaywall metadata for a DOI (accepts DOI, DOI URL, or 'doi:' prefix). Requires an email address via env UNPAYWALL_EMAIL or the optional 'email' argument. |
| unpaywall_search_titlesA | Search Unpaywall for article titles matching a query. Supports optional is_oa filter and pagination (50 results per page). |
| unpaywall_get_fulltext_linksA | Given a DOI, return best open-access links (best PDF URL and open URL) plus Unpaywall locations metadata. |
| unpaywall_fetch_pdf_textA | Download and extract text from best OA PDF for a DOI, or from a provided PDF URL. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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