Mervext — Claude Code MCP server: documents to JSON
Turns invoices, receipts and contracts into structured JSON with a confidence score per field. Useful when an agent has to read a PDF or a photo of a document.
claude mcp add --transport http mervext https://mcp.vstudiodigital.com/mcpWhat Mervext does
Mervext is a thin wrapper around a deployed engine at https://api.vstudiodigital.com. The server keeps no state and stores no secrets. It ships five tools: extract_document reads one document (PDF, photo or text) into JSON with per-field confidence, classify_document names the document type without pulling fields, list_schemas lists the built-in schemas, check_balance reports plan and remaining credits, and delete_document removes a document by id.
The API key travels with each request from the client, so the worker never holds it. Over HTTP that means an X-API-Key: fw_… or Authorization: Bearer fw_… header; over stdio it is the MERVEKT_API_KEY variable. Keys with free trial credits come from https://mervext.com, or you can mint a device key with POST /v1/keys/device. No key, no output.
It runs on Cloudflare Workers at https://mcp.vstudiodigital.com/mcp over Streamable HTTP. For a local build, run npm install then npm run build, and start either node dist/stdio.js or node dist/http.js on port 8787. Point MERVEKT_API_URL elsewhere to override the engine base URL. MIT licensed.
What it helps with
- pull invoice fields out of a PDF
- read a scanned receipt that has no text layer
- identify a document type before extracting anything
- check remaining credits and the current plan
- delete a document by id with zero retention
Example prompts for the agent
- Extract
invoice.pdfusing the invoice schema and show per-field confidence - Classify the document in
scan.jpg, don't extract fields yet - List the built-in schemas and my remaining credits
How to install Mervext
Platform CLI: remote server
claude mcp add --transport http mervext https://mcp.vstudiodigital.com/mcpPlatform CLI: remote server
codex mcp add mervext --url https://mcp.vstudiodigital.com/mcpConfig file
{
"mcpServers": {
"mervext": {
"url": "https://mcp.vstudiodigital.com/mcp"
}
}
}Config file
{
"servers": {
"mervext": {
"type": "http",
"url": "https://mcp.vstudiodigital.com/mcp"
}
}
}Platform CLI: remote server
gemini mcp add -t http mervext https://mcp.vstudiodigital.com/mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Mervext
How do I install Mervext in Claude Code?
Run claude mcp add --transport http mervext https://mcp.vstudiodigital.com/mcp. Then add the X-API-Key header with your key.
What does Mervext do?
It converts invoices, receipts and contracts into structured JSON. Five tools cover extraction, classification, schema listing, balance checks and document deletion.
Do I need an API key?
Yes. The client sends the key with every request and the server stores nothing. You can get a key with trial credits at https://mervext.com.
