Api Endpoint

Saylor Innovations Data Desk

Physics paper search on INSPIRE-HEP - title, authors, citation count, arXiv id and DOI for high energy physics and astrophysics literature

Open interactive test console

Offering

Provider
saylorinnovations.com
Method
GET
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://saylorinnovations.com/api/physics/papers
MIME type
Not provided
First seen
2026-10-16T01:59:13.392Z
Last seen
Tags
physics papers, inspire hep, high energy physics, arxiv physics, citation counts

Payment pricing

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

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
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Observed health

Status
Healthy
Latest latency
125 ms
Average latency
441 ms
HTTP status
402
Last checked
Reachability
100% over 8 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": {
    "method": {
      "enum": [
        "GET",
        "POST",
        "PUT",
        "PATCH",
        "DELETE",
        "HEAD"
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      "type": "string"
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    "queryParams": {
      "properties": {
        "limit": {
          "description": "optional 1-25, default 10",
          "type": "string"
        },
        "q": {
          "description": "Search text or INSPIRE query, e.g. dark matter halo",
          "type": "string"
        }
      },
      "required": [
        "q"
      ],
      "type": "object"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
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            "PUT",
            "PATCH",
            "DELETE",
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          "type": "string"
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        "queryParams": {
          "properties": {
            "limit": {
              "description": "optional 1-25, default 10",
              "type": "string"
            },
            "q": {
              "description": "Search text or INSPIRE query, e.g. dark matter halo",
              "type": "string"
            }
          },
          "required": [
            "q"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
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      },
      "required": [
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      "type": "object"
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          "properties": {
            "checked_at": {
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              "type": [
                "string",
                "null"
              ]
            },
            "papers": {
              "description": "List of papers",
              "items": {
                "properties": {
                  "arxiv_id": {
                    "description": "arXiv identifier",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "author_count": {
                    "description": "Number of author",
                    "type": "number"
                  },
                  "authors": {
                    "description": "Author names",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "citations": {
                    "type": [
                      "number",
                      "null"
                    ]
                  },
                  "doi": {
                    "description": "Digital object identifier",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "first_date": {
                    "description": "First date",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "inspire_url": {
                    "description": "Inspire URL",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "journal": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "title": {
                    "description": "Title",
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "year": {
                    "description": "Calendar year",
                    "type": [
                      "number",
                      "null"
                    ]
                  }
                },
                "type": "object"
              },
              "type": "array"
            },
            "query": {
              "description": "The query as the server interpreted it",
              "type": "string"
            },
            "sort": {
              "description": "Sort order applied",
              "type": "string"
            },
            "source": {
              "description": "Data source the values come from",
              "type": [
                "string",
                "null"
              ]
            },
            "total_matches": {
              "description": "Total number of matches before any limit is applied",
              "type": [
                "number",
                "null"
              ]
            }
          },
          "required": [
            "query",
            "papers"
          ],
          "type": "object"
        },
        "type": {
          "const": "json",
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
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  "type": "object"
}