Search Research DOIs: Datasets, Papers, Software (DataCite)

datacite/search-dois

Searches DataCite's registry of research DOIs (datasets, software, theses, preprints, reports and papers) by keyword or Lucene query. Returns each record's DOI, creators, titles, publisher, publication year, subjects, descriptions, rights and citation counts, 1 to 10 records per page with the total match count. Filter by resource type, publication year or repository, and sort by relevance, name, created or updated date. DataCite metadata passed through unmodified and served by Eden Engine; not an official DataCite product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.

Data source

DataCite

Metadata from DataCite (datacite.org), released by DataCite e.V. under CC0 1.0; DataCite asks that it be credited as the source. Served by Eden Engine; not an official DataCite product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "datacite/search-dois" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "datacite/search-dois" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "datacite/search-dois", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "datacite/search-dois", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 21, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "sort": {
      "enum": [
        "relevance",
        "name",
        "created",
        "-created",
        "updated",
        "-updated"
      ],
      "type": "string",
      "description": "Optional order: relevance, name, created or updated (a leading minus is newest first). Defaults to DataCite's own ordering."
    },
    "query": {
      "type": "string",
      "maxLength": 300,
      "minLength": 1,
      "description": "Search text, for example climate or a title. Lucene syntax is accepted (quoted phrases, AND/OR, field queries such as creators.name:Smith). An unbalanced expression is refused as a validation error."
    },
    "client_id": {
      "type": "string",
      "pattern": "^[a-z0-9]+(\\.[a-z0-9-]+)*$",
      "maxLength": 60,
      "description": "Optional repository symbol to search within, for example cern.zenodo. Symbols come from the repository search tool."
    },
    "page_size": {
      "type": "integer",
      "default": 5,
      "maximum": 10,
      "minimum": 1,
      "description": "Records per page, 1 to 10. Defaults to 5."
    },
    "published": {
      "type": "string",
      "pattern": "^[0-9]{4}$",
      "description": "Optional four digit publication year, for example 2024."
    },
    "page_number": {
      "type": "integer",
      "default": 1,
      "maximum": 100,
      "minimum": 1,
      "description": "Page number, 1 to 100. Defaults to 1."
    },
    "resource_type_id": {
      "type": "string",
      "pattern": "^[a-z][a-z-]{1,40}$",
      "description": "Optional resource type, for example dataset, software, text, journal-article, preprint, dissertation, image, audiovisual, collection."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "data",
    "meta"
  ],
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "type": "string"
          },
          "type": {
            "type": "string"
          },
          "attributes": {
            "type": "object",
            "additionalProperties": true
          },
          "relationships": {
            "type": "object",
            "additionalProperties": true
          }
        },
        "additionalProperties": true
      }
    },
    "meta": {
      "type": "object",
      "description": "Paging totals: `total` matches, `totalPages` and `page`.",
      "additionalProperties": true
    },
    "links": {
      "type": "object",
      "additionalProperties": true
    }
  },
  "description": "DataCite's JSON:API list envelope: `data` holds the matching DOI records, each with `attributes` (doi, creators, titles, publisher, publicationYear, subjects, descriptions, rightsList, types, relatedIdentifiers, citationCount and more), `meta` the totals (total, totalPages, page) and facet counts, `links` the self and next page URLs.",
  "additionalProperties": true
}