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CoreNexis API

Registre officiel Productivité

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

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http corenexis-api 'https://api.corenexis.com/mcp/server' --header 'x-api-key: <Your CoreNexis API key from dash.corenexis.com>'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "corenexis-api": {
            "type": "http",
            "url": "https://api.corenexis.com/mcp/server",
            "headers": {
                "x-api-key": "<Your CoreNexis API key from dash.corenexis.com>"
            }
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. Corenexis API and MCP Server
  2. What is the Corenexis API?
  3. APIs
  4. Quick start
  5. MCP server
  6. Screenshots
  7. Links

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

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:
curl -X POST https://api.corenexis.com/email-validator/v1 \
  -H "x-api-key: your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"email": "john.doe@company.com"}'

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

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

Claude Code

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

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

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

Questions fréquentes

Qu'est-ce que CoreNexis API ?

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

Comment installer CoreNexis API ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http corenexis-api 'https://api.corenexis.com/mcp/server' --header 'x-api-key: <Your CoreNexis API key from dash.corenexis.com>'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour CoreNexis API ?

Oui. Il attend x-api-key, à renseigner dans sa configuration.

CoreNexis API est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient CoreNexis API ?

Il est publié par Core-Nexis. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.