Crossref Works & DOI Metadata
Pricing
$0.50 / 1,000 works
Crossref works and DOI metadata scraper for bibliographic enrichment. Export publication metadata as JSON; search modes also provide journal and funder records.
You can access the Crossref Works & DOI Metadata programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.
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Works can be scoped by journal ISSN or funder ID.", "default": "works" }, "query": { "title": "Search query", "type": "string", "description": "Keywords for works, journals or funders. Required for journal/funder search. For works, provide a query, filter, ISSN or funder ID." }, "dois": { "title": "DOI list", "type": "array", "description": "Used in DOI mode. Bare DOI, doi: prefix and doi.org URLs are accepted. Duplicate DOI values are removed; invalid entries become uncharged error rows.", "items": { "type": "string" } }, "issn": { "title": "Journal ISSN", "type": "string", "description": "Optional works scope, for example 0028-0836. Cannot be combined with funderId." }, "funderId": { "title": "Funder identifier", "type": "string", "description": "Optional works scope: numeric Crossref funder ID, 10.13039/ DOI or its doi.org URL. Cannot be combined with issn." }, "filter": { "title": "Crossref works filters", "type": "string", "description": "Works mode only. Comma-separated official filters, for example from-pub-date:2024-01-01,type:journal-article,has-license:true. Unsupported filters produce a source error row." }, "sort": { "title": "Works sort", "enum": [ "published", "relevance", "is-referenced-by-count", "references-count", "indexed", "updated" ], "type": "string", "description": "Sorting for works search. Relevance requires a search query. Not applied in other modes.", "default": "published" }, "order": { "title": "Works order", "enum": [ "desc", "asc" ], "type": "string", "description": "Ordering for works search. Not applied in other modes.", "default": "desc" }, "mailto": { "title": "Crossref polite-pool email", "type": "string", "description": "Optional real contact email that you monitor. Sent to Crossref in the mailto parameter and User-Agent to request polite-pool access. Never saved to result rows." }, "maxItems": { "title": "Maximum output rows", "minimum": 1, "maximum": 10000, "type": "integer", "description": "Hard cap on total output rows, including error rows. DOI duplicates do not consume this cap.", "default": 100 }, "concurrency": { "title": "Maximum concurrent DOI tasks", "minimum": 1, "maximum": 3, "type": "integer", "description": "Up to three DOI tasks are scheduled at once. HTTP requests remain serial in both pools to respect Crossref concurrency limits.", "default": 1 }, "pageSize": { "title": "Search page size", "minimum": 1, "maximum": 1000, "type": "integer", "description": "Records requested per page, additionally limited by remaining maxItems.", "default": 100 }, "includeReferences": { "title": "Include deposited reference details", "type": "boolean", "description": "Include references array for work records. referenceCount is included regardless. Full reference lists can make records large.", "default": false }, "requestTimeoutSecs": { "title": "Request timeout (seconds)", "minimum": 5, "maximum": 120, "type": "integer", "description": "Timeout per HTTP attempt.", "default": 30 }, "maxRetries": { "title": "Retries per request", "minimum": 0, "maximum": 5, "type": "integer", "description": "Retries after timeouts, rate limits and transient server errors, with backoff.", "default": 3 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 }, "PROXY_UNBLOCKER_UNITS": { "type": "integer", "example": 0 } } } } } } } } }}OpenAPI is a standard for designing and describing RESTful APIs, allowing developers to define API structure, endpoints, and data formats in a machine-readable way. 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