Metadata of a publication by DOI (Crossref)
Metadata of a publication by DOI (Crossref): title, authors, journal or publisher, year, type, citation count, references, license, link and an APA-formatted citation.
Answeringour last check, 2026-10-03
1 of 1checks answered this week
327 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.vextorium.com/doi-info-pago
| Category | Everything else |
|---|---|
| Provider host | api.vextorium.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-03 | valid payment request | 402 | $0.002 | 327 ms |
Example input (from the provider)
{
"body": {
"doi": "10.1038/nature14539"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"doi": {
"type": "string"
}
},
"required": [
"doi"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"autores": {
"items": {
"type": [
"null",
"string"
]
},
"type": [
"array",
"null"
]
},
"a\u00f1o": {
"type": [
"number",
"null"
]
},
"cita_apa": {
"type": [
"string",
"null"
]
},
"citas": {
"type": [
"number",
"null"
]
},
"doi": {
"type": [
"string",
"null"
]
},
"editorial": {
"type": [
"string",
"null"
]
},
"enlace": {
"type": [
"string",
"null"
]
},
"fuente": {
"type": [
"string",
"null"
]
},
"licencia": {
"items": {
"type": [
"null",
"string"
]
},
"type": [
"array",
"null"
]
},
"numero": {
"type": [
"string",
"null"
]
},
"paginas": {
"type": [
"string",
"null"
]
},
"referencias": {
"type": [
"number",
"null"
]
},
"revista": {
"type": [
"string",
"null"
]
},
"tipo": {
"type": [
"string",
"null"
]
},
"titulo": {
"type": [
"string",
"null"
]
},
"volumen": {
"type": [
"string",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}