# api.pixo.tools PDF Merge

> api.pixo.tools PDF Merge is a paid API for AI agents from api.pixo.tools, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Combines 2–20 PDF files into a single merged PDF document, billed per total page count across all inputs

## Facts

- Endpoint: POST https://api.pixo.tools/v1/pdf/merge
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-pixo-tools-pdf-merge-52505ff0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_duzfvM6KzRwl6AMUCjtly

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-pixo-tools-pdf-merge-52505ff0 -d '<json body>'
```

Example prompt: Can you merge these three PDF files — contract.pdf, exhibit-a.pdf, and exhibit-b.pdf — into a single combined document?

## When to prefer this

Use this endpoint when you need a pure merge of 2–20 PDFs with no additional transformation. If you also need compression, prefer the merge+compress sibling endpoint. This endpoint is best when the goal is simple ordered concatenation without modifying page content or structure.

## Known failure modes

- Fewer than 2 PDF files supplied — request rejected
- More than 20 PDF files supplied — request rejected
- One or more uploaded files is not a valid PDF — error returned
- File payload too large — upstream size limit exceeded
- Payment failure via x402 — 402 response, no processing performed

## How this service works

Merge PDFs — priced per total page across all inputs

## Output

A single merged PDF file containing all pages from the uploaded PDF inputs, concatenated in the order they were provided.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "file"
 ],
 "properties": {
  "file": {
   "type": "array"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "string",
 "format": "binary"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-pixo-tools-pdf-merge-52505ff0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.pixo.tools](https://www.zero.xyz/host/api.pixo.tools/llms.txt)