> ## Documentation Index > Fetch the complete documentation index at: https://docs.anysite.io/llms.txt > Use this file to discover all available pages before exploring further. # /europepmc/articles > Get a Europe PMC article by its (source, id) pair **Price:** 1 credit **⚠️ Common errors:** 412: Article not found ## OpenAPI ````yaml /openapi/research-papers.json post /api/europepmc/articles openapi: 3.1.0 info: title: Any Site API description: >+ Any Site API provides programmatic access to data from LinkedIn, Instagram, Twitter, and other platforms. ## Authentication All API endpoints require an `access-token` header with a valid API token. Tokens can be created in the [dashboard](https://app.anysite.io/). ## Pricing Each endpoint has a credit cost listed in its description. Credits are deducted from your token balance per request. version: 0.0.1 servers: [] security: - AccessToken: [] paths: /api/europepmc/articles: post: tags: - /europepmc summary: /europepmc/articles description: |- Get a Europe PMC article by its (source, id) pair **Price:** 1 credit **⚠️ Common errors:** 412: Article not found operationId: __api_europepmc_articles_post parameters: - name: access-token in: header required: true schema: anyOf: - type: string requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/EuropepmcArticlesPayload' responses: '200': description: Successful Response content: application/json: schema: type: array items: $ref: '#/components/schemas/EuropepmcArticle' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' components: schemas: EuropepmcArticlesPayload: properties: timeout: type: integer maximum: 1500 minimum: 20 default: 300 id: type: string minLength: 1 source: $ref: '#/components/schemas/EuropepmcSource' default: MED type: object required: - id EuropepmcArticle: properties: '@type': type: string default: EuropepmcArticle id: type: string source: type: string pmid: anyOf: - type: string - type: 'null' pmcid: anyOf: - type: string - type: 'null' doi: anyOf: - type: string - type: 'null' abstract: anyOf: - type: string - type: 'null' author_string: anyOf: - type: string - type: 'null' affiliation: anyOf: - type: string - type: 'null' authors: items: $ref: '#/components/schemas/EuropepmcAuthor' type: array default: [] journal: anyOf: - $ref: '#/components/schemas/EuropepmcJournal' - type: 'null' pub_year: anyOf: - type: integer - type: 'null' page_info: anyOf: - type: string - type: 'null' first_publication_date: anyOf: - type: string - type: 'null' language: anyOf: - type: string - type: 'null' pub_model: anyOf: - type: string - type: 'null' publication_status: anyOf: - type: string - type: 'null' pub_types: items: type: string type: array default: [] version_number: anyOf: - type: integer - type: 'null' has_evaluations: type: boolean default: false versions: items: $ref: '#/components/schemas/EuropepmcVersion' type: array default: [] keywords: items: type: string type: array default: [] mesh_headings: items: $ref: '#/components/schemas/EuropepmcMeshHeading' type: array default: [] chemicals: items: $ref: '#/components/schemas/EuropepmcChemical' type: array default: [] grants: items: $ref: '#/components/schemas/EuropepmcGrant' type: array default: [] comments: items: $ref: '#/components/schemas/EuropepmcComment' type: array default: [] full_text_urls: items: $ref: '#/components/schemas/EuropepmcFullTextUrl' type: array default: [] license: anyOf: - type: string - type: 'null' is_open_access: type: boolean default: false in_epmc: type: boolean default: false in_pmc: type: boolean default: false has_pdf: type: boolean default: false has_book: type: boolean default: false has_suppl: type: boolean default: false has_references: type: boolean default: false has_text_mined_terms: type: boolean default: false has_db_cross_references: type: boolean default: false has_labs_links: type: boolean default: false has_data: type: boolean default: false cited_by_count: type: integer default: 0 date_of_creation: anyOf: - type: string - type: 'null' date_of_revision: anyOf: - type: string - type: 'null' first_index_date: anyOf: - type: string - type: 'null' web_url: type: string default: '' type: object required: - id - source HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array type: object EuropepmcSource: type: string enum: - MED - PMC - PPR - PAT - AGR - CBA - CTX - ETH - HIR - NBK EuropepmcAuthor: properties: '@type': type: string default: EuropepmcAuthor full_name: anyOf: - type: string - type: 'null' first_name: anyOf: - type: string - type: 'null' last_name: anyOf: - type: string - type: 'null' initials: anyOf: - type: string - type: 'null' orcid: anyOf: - type: string - type: 'null' affiliations: items: type: string type: array default: [] type: object EuropepmcJournal: properties: '@type': type: string default: EuropepmcJournal iso_abbreviation: anyOf: - type: string - type: 'null' medline_abbreviation: anyOf: - type: string - type: 'null' nlmid: anyOf: - type: string - type: 'null' issn: anyOf: - type: string - type: 'null' essn: anyOf: - type: string - type: 'null' volume: anyOf: - type: string - type: 'null' issue: anyOf: - type: string - type: 'null' issue_id: anyOf: - type: integer - type: 'null' year: anyOf: - type: integer - type: 'null' month_of_publication: anyOf: - type: integer - type: 'null' print_publication_date: anyOf: - type: string - type: 'null' date_of_publication: anyOf: - type: string - type: 'null' type: object EuropepmcVersion: properties: '@type': type: string default: EuropepmcVersion id: type: string source: anyOf: - type: string - type: 'null' version_number: anyOf: - type: integer - type: 'null' first_publish_date: anyOf: - type: string - type: 'null' pub_types: items: type: string type: array default: [] has_evaluations: type: boolean default: false type: object required: - id EuropepmcMeshHeading: properties: '@type': type: string default: EuropepmcMeshHeading descriptor_name: type: string is_major_topic: type: boolean default: false qualifiers: items: type: string type: array default: [] type: object required: - descriptor_name EuropepmcChemical: properties: '@type': type: string default: EuropepmcChemical name: type: string registry_number: anyOf: - type: string - type: 'null' type: object required: - name EuropepmcGrant: properties: '@type': type: string default: EuropepmcGrant grant_id: anyOf: - type: string - type: 'null' agency: anyOf: - type: string - type: 'null' acronym: anyOf: - type: string - type: 'null' type: object EuropepmcComment: properties: '@type': type: string default: EuropepmcComment id: anyOf: - type: string - type: 'null' source: anyOf: - type: string - type: 'null' type: anyOf: - type: string - type: 'null' note: anyOf: - type: string - type: 'null' type: object EuropepmcFullTextUrl: properties: '@type': type: string default: EuropepmcFullTextUrl url: type: string site: anyOf: - type: string - type: 'null' document_style: anyOf: - type: string - type: 'null' availability: anyOf: - type: string - type: 'null' type: object required: - url ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array msg: type: string type: type: string input: {} ctx: type: object type: object required: - loc - msg - type securitySchemes: AccessToken: type: apiKey in: header name: access-token description: API token from the dashboard ````