{ "openapi": "3.1.1", "info": { "title": "CiteShape API", "version": "1.0.0", "summary": "Paste a DOI, ORCID iD, ISBN or arXiv ID: validated, resolved, and formatted as APA, BibTeX and RIS.", "description": "Every endpoint performs the same calculation as the human page and returns inputs, result, units, assumptions, sources, warnings and computedAt. MCP endpoint: /mcp." }, "servers": [ { "url": "https://citeshape.usefulweb.site" } ], "paths": { "/api/v1/calculate": { "post": { "operationId": "calculate", "summary": "Paste a DOI, ORCID iD, ISBN or arXiv ID: validated, resolved, and formatted as APA, BibTeX and RIS.", "description": "CiteShape finds the identifier in whatever you paste (URL, \"doi:\", reference text), normalises it, validates check digits (ORCID ISO 7064, ISBN-10/13), resolves authoritative metadata from Crossref, ORCID and arXiv, and emits APA-style, BibTeX and RIS citations. Retrieved facts are kept separate from your input, and nothing missing is guessed.\n\nMethodology:\n- Detection order: DOI (10.prefix/suffix, also in doi.org URLs) → ORCID iD → arXiv ID → ISBN. DOIs are lower-cased (DOIs are case-insensitive).\n- ORCID: ISO 7064 MOD 11-2 check digit. ISBN-10: weighted sum mod 11; ISBN-13: alternating 1/3 weights mod 10. ISBN-10 is converted to ISBN-13 with prefix 978.\n- Resolution: DOI → api.crossref.org/works/{doi}; ORCID → pub.orcid.org/v3.0/{id}/record (JSON); arXiv → export.arxiv.org/api/query. ISBN metadata is not resolved (no open authoritative registry).\n- Citations are generated only from retrieved metadata; APA output follows APA 7 reference structure for author list, year, title, container, volume(issue), pages and DOI link.", "tags": [ "developer" ], "x-mcp-tool": "citeshape", "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/CiteshapeInput" }, "examples": { "example1": { "summary": "ORCID check digit (offline)", "value": { "identifier": "https://orcid.org/0000-0002-1825-0097", "resolve": false } }, "example2": { "summary": "ISBN-10 → ISBN-13 (offline)", "value": { "identifier": "ISBN 0-306-40615-2", "resolve": false } }, "example3": { "summary": "Invalid ORCID (offline)", "value": { "identifier": "0000-0002-1825-0098", "resolve": false } } } } } }, "responses": { "200": { "description": "Calculation result envelope.", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/CiteshapeResult" } } } }, "400": { "description": "Malformed JSON body.", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } }, "422": { "description": "Invalid input (see errors[]).", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } }, "429": { "description": "Rate limit exceeded (see Retry-After).", "content": { "application/problem+json": { "schema": { "$ref": "#/components/schemas/Problem" } } } } } } }, "/api/v1/tool": { "get": { "operationId": "getToolDefinition", "summary": "Inputs, output schema and examples for this tool", "responses": { "200": { "description": "Tool definition.", "content": { "application/json": { "schema": { "type": "object" } } } } } } } }, "components": { "schemas": { "Problem": { "type": "object", "description": "RFC 9457 problem details. 422 responses include per-field `errors`.", "required": [ "type", "title", "status", "detail" ], "properties": { "type": { "type": "string" }, "title": { "type": "string" }, "status": { "type": "integer" }, "detail": { "type": "string" }, "code": { "type": "string" }, "errors": { "type": "array", "items": { "type": "object", "required": [ "field", "message" ], "properties": { "field": { "type": "string" }, "message": { "type": "string" } } } } } }, "CiteshapeInput": { "type": "object", "additionalProperties": false, "properties": { "identifier": { "title": "DOI, ORCID iD, ISBN or arXiv ID", "type": "string", "maxLength": 500 }, "resolve": { "title": "Look up metadata online (Crossref / ORCID / arXiv)", "type": "boolean", "default": true } }, "required": [ "identifier" ] }, "CiteshapeResult": { "type": "object", "additionalProperties": false, "required": [ "schemaVersion", "tool", "computedAt", "inputs", "summary", "result", "units", "assumptions", "sources", "warnings", "presentation", "links" ], "properties": { "schemaVersion": { "type": "string", "const": "1.0" }, "tool": { "type": "object", "additionalProperties": false, "required": [ "id", "name", "version" ], "properties": { "id": { "type": "string" }, "name": { "type": "string" }, "version": { "type": "string" } } }, "computedAt": { "type": "string", "format": "date-time" }, "inputs": { "type": "object", "description": "Normalised inputs actually used, including applied defaults." }, "summary": { "type": "string" }, "result": { "type": "object", "additionalProperties": false, "required": [ "kind", "id", "valid", "problem", "canonicalUrl", "resolved", "resolver", "work", "person", "citations" ], "properties": { "kind": { "type": "string", "enum": [ "doi", "orcid", "isbn", "arxiv" ] }, "id": { "type": "string" }, "valid": { "type": "boolean" }, "problem": { "type": [ "string", "null" ] }, "canonicalUrl": { "type": [ "string", "null" ] }, "resolved": { "type": "boolean" }, "resolver": { "type": [ "string", "null" ] }, "work": { "type": [ "object", "null" ], "additionalProperties": false, "required": [ "type", "title", "authors", "container", "publisher", "year", "month", "day", "volume", "issue", "pages", "doi", "url" ], "properties": { "type": { "type": "string" }, "title": { "type": "string" }, "authors": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "given", "family", "orcid" ], "properties": { "given": { "type": [ "string", "null" ] }, "family": { "type": "string" }, "orcid": { "type": [ "string", "null" ] } } } }, "container": { "type": [ "string", "null" ] }, "publisher": { "type": [ "string", "null" ] }, "year": { "type": [ "integer", "null" ] }, "month": { "type": [ "integer", "null" ] }, "day": { "type": [ "integer", "null" ] }, "volume": { "type": [ "string", "null" ] }, "issue": { "type": [ "string", "null" ] }, "pages": { "type": [ "string", "null" ] }, "doi": { "type": [ "string", "null" ] }, "url": { "type": [ "string", "null" ] } } }, "person": { "type": [ "object", "null" ], "additionalProperties": false, "required": [ "name", "works" ], "properties": { "name": { "type": [ "string", "null" ] }, "works": { "type": "integer" } } }, "citations": { "type": [ "object", "null" ], "additionalProperties": false, "required": [ "apa", "bibtex", "ris" ], "properties": { "apa": { "type": "string" }, "bibtex": { "type": "string" }, "ris": { "type": "string" } } } } }, "units": { "type": "object", "additionalProperties": { "type": "string" } }, "assumptions": { "type": "array", "items": { "type": "string" } }, "sources": { "type": "array", "items": { "type": "object", "additionalProperties": false, "required": [ "title" ], "properties": { "title": { "type": "string" }, "url": { "type": "string" }, "publisher": { "type": "string" }, "retrievedAt": { "type": "string" }, "note": { "type": "string" } } } }, "warnings": { "type": "array", "items": { "type": "string" } }, "presentation": { "type": "array", "items": { "type": "object" }, "description": "Display blocks used by the human page (same data)." }, "links": { "type": "object", "additionalProperties": false, "required": [ "human", "api", "openapi", "methodology" ], "properties": { "human": { "type": "string", "format": "uri" }, "api": { "type": "string", "format": "uri" }, "openapi": { "type": "string", "format": "uri" }, "methodology": { "type": "string", "format": "uri" } } } } } } } }