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DOI Handle: Get a DOI's Target URL

doihandle/resolve-doi-url

Returns only the URL value of a DOI's Handle System record: the address the DOI currently points to, with its change timestamp, without following the redirect. Reads the DOI Foundation resolver's cached value. Data from the DOI Foundation, served by Eden Engine; not an official DOI Foundation 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 $0.50.

Data source

DOI Foundation

Handle records from the DOI Foundation's DOI proxy (doi.org). The DOI Foundation licenses the content of its site under CC BY 4.0 (creativecommons.org/licenses/by/4.0/); credit: "DOI Foundation". DOI(R), DOI.ORG(R) and shortDOI(R) are trademarks of the DOI Foundation. Passed through unmodified. Served by Eden Engine; not an official DOI Foundation 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.

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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: "doihandle/resolve-doi-url" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "doihandle/resolve-doi-url" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "doihandle/resolve-doi-url", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "doihandle/resolve-doi-url", input: { /* ... */ } })

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

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Pricing

Every charge this tool can incur.

ChargePrice
Per call
$0.0026
Updated
Oct 21, 2026

Input and output schemas

Input schema
input_schema.json
{
  "type": "object",
  "required": [
    "doi"
  ],
  "properties": {
    "doi": {
      "type": "string",
      "pattern": "^10\\.[0-9]{4,9}(\\.[0-9]+)*/[A-Za-z0-9._;()/:+\\-]{1,200}$",
      "description": "The DOI, for example `10.1038/nature12373`: the `10.` prefix, a slash, then the suffix. Without the https://doi.org/ part."
    }
  },
  "additionalProperties": false
}
Output schema
output_schema.json
{
  "type": "object",
  "required": [
    "responseCode",
    "handle",
    "values"
  ],
  "properties": {
    "handle": {
      "type": "string",
      "description": "The handle as stored, for example 10.1038/nature12373."
    },
    "values": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "index",
          "type",
          "data"
        ],
        "properties": {
          "ttl": {
            "type": "integer",
            "description": "Seconds the value may be cached."
          },
          "data": {
            "type": "object",
            "description": "The value: a `format` and a `value` (a string for URL values, an object for HS_ADMIN).",
            "additionalProperties": true
          },
          "type": {
            "type": "string",
            "description": "The value type, for example URL or HS_ADMIN."
          },
          "index": {
            "type": "integer",
            "description": "The value's index within the handle."
          },
          "timestamp": {
            "type": "string",
            "description": "When the value was last changed (UTC)."
          }
        },
        "additionalProperties": true
      },
      "description": "The handle's values, one per index."
    },
    "responseCode": {
      "type": "integer",
      "description": "The Handle System response code; 1 is success."
    }
  },
  "description": "The handle record: its code, the handle, and the typed values stored under it.",
  "additionalProperties": true
}