# CoreNexis API

Connects Corenexis cloud utilities to your AI agent for PDF rendering, OCR, barcode generation, and mailbox verification.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI
- Author: Core-Nexis
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/Core-Nexis/corenexis-api
- Updated: 2026-10-16
- HTML: https://affpapa.org/en/nevibecode/mcp/corenexis-api

## What it does

This remote HTTP server connects directly to `https://api.corenexis.com/mcp/server`. It exposes endpoints that transform Markdown or HTML into PDF files using a browser rendering engine. It also extracts text from scans or receipts through OCR.

Other bundled tools handle image compression, image hosting on a CDN, and barcode creation covering formats like QR, Code128, and EAN-13. Multi-page PDF text extraction runs as an asynchronous background job with separate status checks.

You must provide an account API key inside the `x-api-key` header before sending commands. Tool invocations draw against your personal plan quota, so missing API subscriptions will block execution immediately.

## Requirements
- Remote server: `https://api.corenexis.com/mcp/server`

## Install

### Claude Code (native platform)

**Platform CLI: remote server**
```bash
claude mcp add --transport http corenexis-api https://api.corenexis.com/mcp/server
```

### Codex

**Platform CLI: remote server**
```bash
codex mcp add corenexis-api --url https://api.corenexis.com/mcp/server
```

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "corenexis-api": {
            "url": "https://api.corenexis.com/mcp/server"
        }
    }
}
```

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "corenexis-api": {
            "type": "http",
            "url": "https://api.corenexis.com/mcp/server"
        }
    }
}
```

### Gemini CLI

**Platform CLI: remote server**
```bash
gemini mcp add -t http corenexis-api https://api.corenexis.com/mcp/server
```

## When to use it
- render PDF files from HTML or Markdown markup
- extract text content from document scans and receipts via OCR
- verify email addresses and filter out disposable mailboxes
- generate QR codes and standard product barcodes
- resize and compress images before hosting them

## Example prompts
- Convert the markup in `report.md` into a printable PDF document.
- Extract the printed text from this receipt screenshot URL.
- Check whether `test@tempmail.com` belongs to a disposable email service.

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---
NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md