Api Endpoint

research.halowerk.com

Searches OpenAlex and Crossref for publications and returns each with its DOI, authors and their affiliations, publication year, venue, abstract, citation count and, where one exists, a direct link to a legally free full text with the licence it is offered under. OpenAlex stores abstracts as an inverted word index rather than text; it is reconstructed here, because the raw structure is unusable. Results can be filtered by year and restricted to open access.

Open interactive test console

Offering

Provider: research.halowerk.com
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Science And Education
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://research.halowerk.com/v1/paper-search
MIME type: Not provided
First seen: 2026-10-16T01:58:26.121Z
Last seen: 2026-11-01T15:25:33.290Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
  }
]

Observed health

Status: Healthy
Latest latency: 310 ms
Average latency: 579 ms
HTTP status: 204
Last checked: 2026-11-04T03:02:12.476Z
Reachability: 100% over 9 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "author": {
          "description": "Restrict to an author name.",
          "maxLength": 200,
          "type": "string"
        },
        "doi": {
          "description": "Exact DOI. Either this or query.",
          "maxLength": 200,
          "type": "string"
        },
        "from_year": {
          "description": "Earliest publication year.",
          "maximum": 2100,
          "minimum": 1600,
          "type": "integer"
        },
        "limit": {
          "default": 10,
          "description": "How many results.",
          "maximum": 25,
          "minimum": 1,
          "type": "integer"
        },
        "open_access_only": {
          "default": false,
          "description": "Only publications with a free full text.",
          "type": "boolean"
        },
        "query": {
          "description": "Search terms. Either this or doi.",
          "maxLength": 300,
          "type": "string"
        },
        "sort": {
          "default": "relevance",
          "description": "Result ordering.",
          "enum": [
            "relevance",
            "citations",
            "newest"
          ],
          "type": "string"
        },
        "to_year": {
          "description": "Latest publication year.",
          "maximum": 2100,
          "minimum": 1600,
          "type": "integer"
        }
      },
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "author": {
              "description": "Restrict to an author name.",
              "maxLength": 200,
              "type": "string"
            },
            "doi": {
              "description": "Exact DOI. Either this or query.",
              "maxLength": 200,
              "type": "string"
            },
            "from_year": {
              "description": "Earliest publication year.",
              "maximum": 2100,
              "minimum": 1600,
              "type": "integer"
            },
            "limit": {
              "default": 10,
              "description": "How many results.",
              "maximum": 25,
              "minimum": 1,
              "type": "integer"
            },
            "open_access_only": {
              "default": false,
              "description": "Only publications with a free full text.",
              "type": "boolean"
            },
            "query": {
              "description": "Search terms. Either this or doi.",
              "maxLength": 300,
              "type": "string"
            },
            "sort": {
              "default": "relevance",
              "description": "Result ordering.",
              "enum": [
                "relevance",
                "citations",
                "newest"
              ],
              "type": "string"
            },
            "to_year": {
              "description": "Latest publication year.",
              "maximum": 2100,
              "minimum": 1600,
              "type": "integer"
            }
          },
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}