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Vextorium PDF Merger
x402
Vextorium PDF Merger is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-16).
Merges 2 to 10 PDFs (provided as URLs) into a single PDF, returned as a base64-encoded string.
Price / call$0.004
Success—
StatusUnknown
How this service works
Merge 2 to 10 PDFs (URLs) into one, in the given order, returned in base64.
Output
A JSON object containing the merged PDF as a base64-encoded string, the total byte size of the merged file, the total number of pages, and the number of source documents that were combined.
Example use cases
Combine report sections into one PDF
“I have three separate PDF report sections hosted at https://reports.example.com/intro.pdf, https://reports.example.com/analysis.pdf, and https://reports.example.com/conclusions.pdf — can you merge them into a single PDF in that order?”
Merge signed contracts for archiving
“Please combine these two signed contract PDFs into one file for our records: https://storage.myco.com/contract-a.pdf and https://storage.myco.com/contract-b.pdf, keeping them in that order.”
Assemble multi-chapter ebook
“I have five PDF chapters for my ebook at these URLs — https://cdn.example.com/ch1.pdf, ch2.pdf, ch3.pdf, ch4.pdf, ch5.pdf (same base URL) — merge them all into one PDF in chapter order.”
Technical details
Endpoint
POSThttps://api.vextorium.com/pdf-unir-pago?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to merge 2–10 PDFs provided as public URLs into a single document and want the result back as base64 — ideal for automated document assembly pipelines where you don't want to handle file uploads. Prefer this over alternatives when documents are already hosted at accessible URLs and you need a quick, pay-per-call merge without managing infrastructure.
Side effects
- Invalid or unreachable PDF URLs return an error
- More than 10 URLs provided exceeds the limit
- Fewer than 2 URLs provided is below the minimum
- Malformed URLs or non-PDF content at a URL cause processing failure
- Network timeout fetching a remote PDF
- Payment failure blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urls | array |
Output
Schema · Response
{
"type": "json",
"example": {
"bytes": 24905,
"base64": "JVBERi0xLjQKJeLjz9MKMSAwIG9iago8PAovUHJvZHVjZXIgKHB5cGRmKQo+PgplbmRvYmoKMiAwIG9iago8PAovVHlwZSAvUGFnZXMKL0NvdW50IDIKL0tpZHMgWyA0IDAgUiAxMiAwIFIgXQo+PgplbmRvYmoKMyAwIG9iago8PAovVHlwZSAvQ2F0YWxvZwovUGFnZXMgMiAwIFIKPj4KZW5kb2JqCjQgMCBvYmoKPDwKL1R5cGUgL1BhZ2UKL1Jlc291cmNlcyA1IDAgUgovTWVkaWFCb3ggWyAwIDAg…",
"paginas": 2,
"documentos": 2
}
}Tags
x402
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