# PubMed `dev.mcpharbor.gateway/pubmed`, version 1.0.0 PubMed biomedical literature search: MeSH terms, citations, abstracts, clinical research - MCP endpoint: `https://gateway.mcpharbor.dev/mcp/pubmed` for this server alone, or `https://gateway.mcpharbor.dev/mcp` for every server - Authentication: `Authorization: Bearer ` - Price per tool call: $0.0001 (100 micro-USD) - Registry entry: - Every tool, machine-readable: ## Provider We proxy this provider under the terms below, re-checked on a schedule. If a re-check ever says no, the server and its tools leave the catalog and this page disappears with them. | Fact | Value | | --- | --- | | Terms of use | | | Terms verified on | 2026-09-19 | | API documentation | | | Upstream API key | free_key; supplied by the gateway, so never send upstream credentials to this endpoint | | Rate limit | 150 requests per minute | | Website | | | Compliance notes | NCBI's disclaimer and copyright notice must be shown to end users. Full-text fetch is excluded because article full text carries publisher copyright separate from the metadata. | ## Attribution This provider requires the attribution below wherever you use results from its tools. Reproduce it verbatim: > NCBI's Disclaimer and Copyright notice must be evident to users of your product ## Tools (10) Every call below costs $0.0001 (100 micro-USD). Listing them costs nothing. | Tool | Description | Price per call | Documentation | | --- | --- | --- | --- | | `pubmed__pubmed_convert_ids` | Convert between article identifiers (DOI, PMID, PMCID). Accepts up to 50 IDs of a single type per request. Only resolves articles indexed in PubMed Central — for articles not in PMC, use pubmed_sea... | $0.0001 | [pubmed__pubmed_convert_ids](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_convert_ids) | | `pubmed__pubmed_europepmc_fetch` | Fetch complete Europe PMC records — including the full, untruncated abstract — for records addressed by \`source\` plus \`epmcId\`. Pairs with \`pubmed_europepmc_search\`, which returns bounded \`abstract... | $0.0001 | [pubmed__pubmed_europepmc_fetch](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_europepmc_fetch) | | `pubmed__pubmed_europepmc_search` | Search Europe PMC, a broad open-access biomedical corpus. Surfaces preprints (\`source: PPR\`), patents (\`source: PAT\`), Agricola (\`source: AGR\`), plus everything in PubMed (\`MED\`) and PMC. Use when ... | $0.0001 | [pubmed__pubmed_europepmc_search](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_europepmc_search) | | `pubmed__pubmed_fetch_articles` | Fetch full article metadata by PubMed IDs. Returns detailed article information including abstract, authors, journal, MeSH terms. Set \`maxResponseCharacters\` to bound the whole response: articles p... | $0.0001 | [pubmed__pubmed_fetch_articles](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_fetch_articles) | | `pubmed__pubmed_find_related` | Find articles related to a source article — similar content (similar), articles citing this one (cited_by), or articles this one cites (references). Uses NCBI ELink as the primary source; falls bac... | $0.0001 | [pubmed__pubmed_find_related](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_find_related) | | `pubmed__pubmed_format_citations` | Get formatted citations for PubMed articles in one or more formats (apa, mla, bibtex, ris, vancouver). Pass a single format as a string or multiple as an array. | $0.0001 | [pubmed__pubmed_format_citations](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_format_citations) | | `pubmed__pubmed_lookup_citation` | Look up PubMed IDs from partial bibliographic citations. Useful when you have a reference (journal, year, volume, page, author) and need the PMID — deterministic citation matching, more reliable th... | $0.0001 | [pubmed__pubmed_lookup_citation](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_lookup_citation) | | `pubmed__pubmed_lookup_mesh` | Search and explore the MeSH (Medical Subject Headings) controlled vocabulary. Returns descriptor records with tree numbers, scope notes, and entry terms, plus pagination via offset for paging past ... | $0.0001 | [pubmed__pubmed_lookup_mesh](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_lookup_mesh) | | `pubmed__pubmed_search_articles` | Search PubMed with full query syntax, filters, and date ranges. Returns PMIDs and optional brief summaries. Supports field-specific filters (author, journal, MeSH terms), common filters (language, ... | $0.0001 | [pubmed__pubmed_search_articles](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_search_articles) | | `pubmed__pubmed_spell_check` | Spell-check a query and get NCBI's suggested correction. Useful for refining search queries. | $0.0001 | [pubmed__pubmed_spell_check](https://gateway.mcpharbor.dev/docs/tools/pubmed__pubmed_spell_check) | ## Price - $0.0001 (100 micro-USD) per tool call. - Billed on: each tools/call that reaches the upstream and returns a result. - Free: server/discover, tools/list, registry endpoints, docs files. - Payment: prepaid credits, drawn down per call. A call your balance cannot cover is refused with HTTP 402 before any upstream is contacted. - A charged call that then fails upstream is refunded automatically. - Retries are ordinary calls. There is no client idempotency key, so repeating a request that was already charged buys a second call - see [agent.txt](https://gateway.mcpharbor.dev/agent.txt), section 7.