{"openapi":"3.1.0","info":{"title":"Crossref Reference Lists (BYOK) API","version":"0.1.0","description":"Crossref Reference Lists (BYOK) lets an AI assistant read your own Crossref Reference Lists data through the Crossref Reference Lists API with a key you supply (Crossref Metadata Plus API token). Read-only: 6 tools (list_work_types, get_work_type, list_licenses, list_works_by_type, list_works_by_prefix, list_works_by_member). The BYOK key travels with each request, is used for that one call only...\n\nEvery operation is read-only or compute-only. The same tools are available over MCP (streamable HTTP) at https://byok-crossref-reference.connectorbay.com/mcp.","contact":{"name":"Unify Dynamics LLC","email":"agent@connectorbay.com","url":"https://connectorbay.com/byok-crossref-reference/docs"},"termsOfService":"https://connectorbay.com/byok-crossref-reference/terms"},"servers":[{"url":"https://byok-crossref-reference.connectorbay.com"}],"externalDocs":{"url":"https://connectorbay.com/byok-crossref-reference/docs"},"security":[{"upstreamKey":[]}],"components":{"securitySchemes":{"bearer":{"type":"http","scheme":"bearer","description":"Optional. A Pro API key raises rate limits; no credentials are required."},"upstreamKey":{"type":"apiKey","in":"header","name":"X-Upstream-Key","description":"Your own key for the service this connector wraps (bring your own key). Used for that one call only; never stored, logged or cached."}},"schemas":{"Error":{"type":"object","properties":{"ok":{"const":false},"error":{"type":"object"}}}}},"paths":{"/v1/tools/list_work_types":{"post":{"operationId":"list_work_types","summary":"List the valid Crossref work types such as journal-article, book-chapter and dataset, with their ids and labels. Use for","description":"List the valid Crossref work types such as journal-article, book-chapter and dataset, with their ids and labels. Use for \"Which work types does Crossref use\".","tags":["tools"],"requestBody":{"required":true,"content":{"application/json":{"schema":{"properties":{},"title":"list_work_typesArguments","type":"object"}}}},"responses":{"200":{"description":"Tool result. `ok: true` on success; `ok: false` with a structured `error` (provider_unavailable, upstream_error, bad_input) when the tool could not answer.","content":{"application/json":{"schema":{"type":"object","additionalProperties":true}}}},"422":{"description":"Arguments failed validation","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"description":"Rate limit exceeded (see Retry-After)","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}},"x-read-only":true}},"/v1/tools/get_work_type":{"post":{"operationId":"get_work_type","summary":"Get one Crossref work type by id. Use for \"Describe the Crossref work type journal-article\".","description":"Get one Crossref work type by id. Use for \"Describe the Crossref work type journal-article\".","tags":["tools"],"requestBody":{"required":true,"content":{"application/json":{"schema":{"properties":{"type_id":{"description":"A work type id from the type list, for example 'journal-article'.","maxLength":60,"title":"Type Id","type":"string"}},"required":["type_id"],"title":"get_work_typeArguments","type":"object"}}}},"responses":{"200":{"description":"Tool result. `ok: true` on success; `ok: false` with a structured `error` (provider_unavailable, upstream_error, bad_input) when the tool could not answer.","content":{"application/json":{"schema":{"type":"object","additionalProperties":true}}}},"422":{"description":"Arguments failed validation","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"description":"Rate limit exceeded (see Retry-After)","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}},"x-read-only":true}},"/v1/tools/list_licenses":{"post":{"operationId":"list_licenses","summary":"List the license URLs applied to works in Crossref metadata, with how many works use each. Use for \"Which licenses appea","description":"List the license URLs applied to works in Crossref metadata, with how many works use each. Use for \"Which licenses appear most in Crossref metadata\".","tags":["tools"],"requestBody":{"required":true,"content":{"application/json":{"schema":{"properties":{"rows":{"anyOf":[{"maximum":1000,"minimum":0,"type":"integer"},{"type":"null"}],"default":20,"description":"How many results to return (0 to 1000; 0 returns only the totals; the default is 20).","title":"Rows"},"offset":{"anyOf":[{"maximum":10000,"minimum":0,"type":"integer"},{"type":"null"}],"default":0,"description":"How many results to skip, for paging (up to 10000).","title":"Offset"}},"title":"list_licensesArguments","type":"object"}}}},"responses":{"200":{"description":"Tool result. `ok: true` on success; `ok: false` with a structured `error` (provider_unavailable, upstream_error, bad_input) when the tool could not answer.","content":{"application/json":{"schema":{"type":"object","additionalProperties":true}}}},"422":{"description":"Arguments failed validation","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"description":"Rate limit exceeded (see Retry-After)","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}},"x-read-only":true}},"/v1/tools/list_works_by_type":{"post":{"operationId":"list_works_by_type","summary":"List works of one work type, with search, filter and paging. Use for \"List recent datasets registered with Crossref\".","description":"List works of one work type, with search, filter and paging. Use for \"List recent datasets registered with Crossref\".","tags":["tools"],"requestBody":{"required":true,"content":{"application/json":{"schema":{"properties":{"type_id":{"description":"A work type id such as 'dataset' or 'journal-article'.","maxLength":60,"title":"Type Id","type":"string"},"query":{"anyOf":[{"maxLength":300,"type":"string"},{"type":"null"}],"default":null,"description":"Free-text query within these works.","title":"Query"},"filter":{"anyOf":[{"maxLength":400,"type":"string"},{"type":"null"}],"default":null,"description":"Comma-separated name:value filters, for example 'from-pub-date:2024-01,has-abstract:true'. Different filters combine with AND.","title":"Filter"},"rows":{"anyOf":[{"maximum":1000,"minimum":0,"type":"integer"},{"type":"null"}],"default":20,"description":"How many results to return (0 to 1000; 0 returns only the totals; the default is 20).","title":"Rows"},"offset":{"anyOf":[{"maximum":10000,"minimum":0,"type":"integer"},{"type":"null"}],"default":0,"description":"How many results to skip, for paging (up to 10000).","title":"Offset"},"select":{"anyOf":[{"maxLength":300,"type":"string"},{"type":"null"}],"default":"DOI,title,container-title,issued,type,publisher,is-referenced-by-count,URL","description":"Comma-separated work fields to return, for example 'DOI,title,publisher'. The default is a compact record without contributor names.","title":"Select"}},"required":["type_id"],"title":"list_works_by_typeArguments","type":"object"}}}},"responses":{"200":{"description":"Tool result. `ok: true` on success; `ok: false` with a structured `error` (provider_unavailable, upstream_error, bad_input) when the tool could not answer.","content":{"application/json":{"schema":{"type":"object","additionalProperties":true}}}},"422":{"description":"Arguments failed validation","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"description":"Rate limit exceeded (see Retry-After)","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}},"x-read-only":true}},"/v1/tools/list_works_by_prefix":{"post":{"operationId":"list_works_by_prefix","summary":"List works registered under one DOI prefix, with search, filter and paging. Use for \"List works under DOI prefix 10.1038","description":"List works registered under one DOI prefix, with search, filter and paging. Use for \"List works under DOI prefix 10.1038 published in 2026\".","tags":["tools"],"requestBody":{"required":true,"content":{"application/json":{"schema":{"properties":{"owner_prefix":{"description":"A DOI prefix, for example '10.1038'.","maxLength":30,"title":"Owner Prefix","type":"string"},"query":{"anyOf":[{"maxLength":300,"type":"string"},{"type":"null"}],"default":null,"description":"Free-text query within these works.","title":"Query"},"filter":{"anyOf":[{"maxLength":400,"type":"string"},{"type":"null"}],"default":null,"description":"Comma-separated name:value filters, for example 'from-pub-date:2024-01,has-abstract:true'. 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The default is a compact record without contributor names.","title":"Select"}},"required":["owner_prefix"],"title":"list_works_by_prefixArguments","type":"object"}}}},"responses":{"200":{"description":"Tool result. `ok: true` on success; `ok: false` with a structured `error` (provider_unavailable, upstream_error, bad_input) when the tool could not answer.","content":{"application/json":{"schema":{"type":"object","additionalProperties":true}}}},"422":{"description":"Arguments failed validation","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"429":{"description":"Rate limit exceeded (see Retry-After)","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}},"x-read-only":true}},"/v1/tools/list_works_by_member":{"post":{"operationId":"list_works_by_member","summary":"List works deposited by one Crossref member (publisher), with search, filter and paging. Use for \"List recent works depo","description":"List works deposited by one Crossref member (publisher), with search, filter and paging. Use for \"List recent works deposited by Crossref member 297\".","tags":["tools"],"requestBody":{"required":true,"content":{"application/json":{"schema":{"properties":{"member_id":{"description":"The numeric Crossref member id, for example '297'.","maxLength":12,"title":"Member Id","type":"string"},"query":{"anyOf":[{"maxLength":300,"type":"string"},{"type":"null"}],"default":null,"description":"Free-text query within these works.","title":"Query"},"filter":{"anyOf":[{"maxLength":400,"type":"string"},{"type":"null"}],"default":null,"description":"Comma-separated name:value filters, for example 'from-pub-date:2024-01,has-abstract:true'. 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