CoreNexis API

com.corenexisPublished by corenexis.comOfficial publisherv1.0.1Updated Oct 24, 2026

PDF from HTML or Markdown, OCR, email validation, image conversion and hosting, QR and barcodes.

VerifiedStreamable HTTPWeb executableFiles & StorageDeveloper ToolsMedia & Design

Overview

AI-generated overview

Remote MCP server exposing Corenexis document, image and data-quality APIs so an assistant can make PDFs, run OCR, validate emails and generate QR codes.

What you can do
  • Generate PDFs or page images from Markdown or HTML/CSS
  • Extract text from images, screenshots and scans, and start and poll PDF text extraction jobs
  • Validate email addresses and flag disposable providers
  • Convert, resize or compress images and host them for a delivery link
  • Create QR, UPI QR and barcode images
  • List available APIs, inspect plans and limits, and check account and subscription usage
When to use it
Useful when a conversation needs a finished artifact or check rather than text: turning notes into a print-ready PDF, reading a scanned receipt, screening an email address, or producing a hosted image or QR code link.
Requirements
Remote Streamable HTTP endpoint; no local install. A Corenexis account and API key from the dashboard, sent in the x-api-key header. Each API must be subscribed to (free tiers exist) and calls count against quota.
Before you install
The API key is a billable credential sent in the x-api-key header; keep it out of shared configs. Content you submit (documents, images, email addresses) is processed by Corenexis and hosted links are created on their service. Calls consume quota and paid plans may apply.

Installation

In SourceWeft

  1. Open CoreNexis API in the dashboard and add it to a workspace.
  2. Connect x-api-key credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.corenexis%2Fapi/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "corenexis-api": {
      "type": "http",
      "url": "https://api.corenexis.com/mcp/server",
      "headers": {
        "x-api-key": "<YOUR_API_KEY>"
      }
    }
  }
}

README

[Corenexis logo]

Corenexis API and MCP Server

9+ production REST APIs behind one API key, plus a remote MCP server so AI agents can use them.
PDF generation, OCR, email validation, image conversion, image CDN and QR codes.

Website · MCP guide · Get an API key · MCP Registry

[Corenexis API Platform]

What is the Corenexis API?

The Corenexis API Platform is a set of production REST APIs for documents, images and data quality. One key, one header, predictable JSON - and a free tier on every API. The same APIs are available to AI assistants through a remote MCP server, so ChatGPT, Claude, n8n or your own agent can generate a PDF, read a scanned receipt or validate an email in the middle of a conversation.

REST APIhttps://api.corenexis.com/<api>/v1 - header x-api-key
MCP serverhttps://api.corenexis.com/mcp/server - Streamable HTTP, API key
Registry namecom.corenexis/api on the Official MCP Registry
n8nCommunity node in Core-Nexis/n8n-nodes-corenexis-api
Dashboardhttps://dash.corenexis.com - keys, subscriptions, usage

APIs

APIEndpointWhat it doesDocs
Markdown to PDFPOST /markdown-to-pdf/v1Markdown into a print-ready PDF or page imagesdocs
HTML to PDFPOST /html-to-pdf/v1HTML and CSS rendered by a real browser engine into a PDF or screenshotdocs
Image to Text (OCR)/image-ocr/v1Text out of photos, screenshots, scans and receiptsdocs
PDF to Text (OCR)/pdf-to-text/v1Text from PDFs, scanned pages included, as a background jobdocs
Email Validator/email-validator/v1Syntax, domain, mailbox and risk checksdocs
Disposable Email Detector/disposable-email-validator/v1Tell a throwaway address from a real onedocs
Image Conversion/image-conversion/v1Convert, resize and compress imagesdocs
Image CDN/image-cdn/v3Host an image and get a fast delivery linkdocs
QR Code and Barcode/qr-barcode/v1QR, UPI QR, Code128, EAN-13 and UPC-A codesdocs

Every request and response example: docs/apis.md.

Quick start

  1. Sign up at https://dash.corenexis.com/auth/signup and create a key at https://dash.corenexis.com/api-keys.
  2. Subscribe to the APIs you need (each has a free tier). One key works for all of them.
  3. Call an API:
bash
curl -X POST https://api.corenexis.com/email-validator/v1 \  -H "x-api-key: your_api_key" \  -H "Content-Type: application/json" \  -d '{"email": "[email protected]"}'

MCP server

Point any MCP client at https://api.corenexis.com/mcp/server with your key in x-api-key.

Claude, Cursor, VS Code and other MCP clients
json
{  "mcpServers": {    "corenexis": {      "type": "http",      "url": "https://api.corenexis.com/mcp/server",      "headers": { "x-api-key": "your_api_key" }    }  }}
Claude Code
bash
claude mcp add --transport http corenexis https://api.corenexis.com/mcp/server \  --header "x-api-key: your_api_key"
n8n

MCP Client node: connection HTTP Streamable, endpoint https://api.corenexis.com/mcp/server, authentication Header Auth with name x-api-key and your key as the value.

curl
bash
curl -X POST "https://api.corenexis.com/mcp/server" \  -H "x-api-key: your_api_key" \  -H "Content-Type: application/json" \  -H "Accept: application/json, text/event-stream" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Tools

ToolWhat it doesQuota
corenexis_list_apisEvery API with its tools, docs and subscribe linksfree
corenexis_accountCheck the key and the accountfree
corenexis_subscriptionsSubscribed APIs with plan, status, renewal and usagefree
corenexis_api_detailsOne API's plans, features and limitsfree
markdown_to_pdfMarkdown to PDF or images, returns a hosted link1 call
html_to_pdfHTML and CSS to PDF or image with a browser engine1 call
image_to_textOCR of a photo, screenshot or scan from a URL or base641 call
pdf_to_textStart PDF text extraction, returns a job_id1 call
pdf_to_text_statusCollect a pdf_to_text resultfree
email_validateFull email check: syntax, domain, mailbox, risk1 call
disposable_email_checkIs the address from a disposable provider1 call
image_convertConvert, resize or compress an image, returns a hosted link1 call
image_cdn_uploadHost an image and get a delivery link1 call
qr_barcode_generateQR, UPI QR or barcode image, returns a hosted link1 call

The MCP server holds no keys of its own: every tool call is the same REST call made with your key and counts against the same quota. Full reference: docs/mcp.md.

Screenshots

[Corenexis API dashboard - API marketplace]

Links

Built by Corenexis. This repository holds documentation and examples; the API service is hosted by Corenexis. Examples are released under the MIT License.

Source: README.md at commit 2bdcf1f

Tools

0
SourceWeft has not read this server's tools yet.

Version history

2
  1. v1.0.1LatestOct 21, 2026
  2. v1.0.0Oct 12, 2026

Score

85% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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