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Carbone MCP Server

answering

Carbone MCP is answering right now. Last checked 11 min ago. 458 installs a week from npm. It exposes 12 tools. Last commit 26 Oct 2026.

Automate production-ready PDF, Word, Excel and PowerPoint documents from templates and JSON data

Installs per day peak 44 · avg 14 · -11% w/w
a month agotoday
Uptime history 91 days of history · worst day 99%
91 days agonow
100.0%
Uptime 24h
91 of 91 checks
12
Tools
read from the server
371 ms
Response time
average over 24h
458
Installs / week
npm and PyPI

What changed 27

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 19 August 2026. No other catalogue keeps this.

15 Oct a tool changed version
14 Oct 8 tool descriptions were rewritten convert_document, delete_template, download_template and 5 more
14 Oct 7 tools changed the parameters they ask for convert_document, delete_template, download_template and 4 more
14 Oct a tool changed version
14 Oct a tool appeared inspect_template
19 Aug 6 tools changed the parameters they ask for convert_document, download_template, list_templates and 3 more
19 Aug 2 tool descriptions were rewritten convert_document, download_template
19 Aug a tool changed version

Nothing serious here today

Today is the operative word: we check Carbone MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add carbone-mcp --transport http https://mcp.carbone.io
Settings → Connectors → Add custom connector, then paste this address
https://mcp.carbone.io
~/.codex/config.toml
[mcp_servers.carbone-mcp]
url = "https://mcp.carbone.io"
.cursor/mcp.json
{
  "mcpServers": {
    "carbone-mcp": {
      "url": "https://mcp.carbone.io"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "carbone-mcp": {
      "type": "http",
      "url": "https://mcp.carbone.io"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Available tools 12

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

template
delete_template
Delete a stored Carbone template. Takes effect immediately: the template is no longer listed, downloadable or renderable (404); the file itself is purged after the retention delay (Carbone Cloud: 24 hours). You can delete by Template ID (removes all versions) or by Version ID (removes only that specific version). To schedule a deletion instead, use update_template_metadata with expireAt set to a future Unix timestamp.
update_template_metadata
Update the metadata of ONE stored template version: name, comment, category, tags, deployment (deployedAt), scheduled deletion (expireAt), or the Template ID it belongs to (moveToTemplateId). With a Template ID, Carbone patches its currently deployed version only; with a Version ID, that exact version. Use deployedAt to choose the version used when rendering by Template ID. Returns the patched versionId and the updated fields, as echoed back by Carbone. To delete a template now, use delete_template.
api
get_api_status
Check Carbone API health and version. Returns the current API version and a status message. Useful for verifying connectivity and confirming which Carbone version is active.
capabilities
get_capabilities
Returns a summary of all Carbone capabilities: supported formats, features, tool usage examples, and links to full documentation. Call this first if you are unsure what Carbone can do.
categories
list_categories
List all template categories currently in use in your Carbone account. Categories act like folders for organising templates (e.g. "invoices", "legal", "hr"). Use the returned names as the category filter in list_templates or upload_template.
convert
convert_document
Convert a document to another format without storing a template. Pure conversion: no data is sent, so Carbone tags such as {d.name} are kept as written; this is also how you proof a template in another format (DOCX template → PDF, or DOCX → ODT while it stays a template). The source file can be an HTTPS URL or a base64-encoded string (local file paths are not accepted over HTTP). Use render_document instead when you need data injection ({d.field} tags resolved), translations, or batch generation. Example: { "file": "https://example.com/report.docx", "convertTo": "pdf" }. Common conversions: DOCX → PDF (add converter: "I" for the fastest conversion), XLSX → PDF, PPTX → PDF, HTML → PDF (converter: "C" for full CSS/JS rendering), DOCX → HTML, XLSX → CSV, PDF → PNG, PPTX → PNG (first slide as image), MD → PDF.
download
download_template
Download the original source file of a stored Carbone template (e.g. the DOCX, XLSX, PPTX, or HTML file that was uploaded). Use this to inspect, edit, or back up a template. Pass a Template ID to download the currently deployed version, or a Version ID to download a specific version. Set sample: true to get the JSON sample dataset stored with the template instead of the template file.
inspect
inspect_template
List the Carbone tags a template uses and return a sample JSON dataset matching its structure. Call it before render_document when you do not know which data a template expects. Pass exactly one of templateId (a stored template: Template ID or Version ID) or template: an HTTPS URL or a base64-encoded string (local file paths are not accepted over HTTP). It runs one render on the Carbone account and discards the document. {t()} translation tags are not listed.
render
render_document
Generate a document by merging a Carbone template with JSON data. Two modes: (1) pass templateId to use a previously uploaded template; (2) pass template (an HTTPS URL or a base64-encoded string (local file paths are not accepted over HTTP)) to upload and render in a single request without storing a template. Supports output format conversion, multilingual rendering, currency conversion, batch generation, and advanced PDF options (watermark, password, PDF/A). Without data, every tag resolves to empty; to keep the tags as written, pass keepTags: true (e.g. to proof a stored template), or use convert_document for a file. Async mode: pass webhookUrl. This tool then returns only Carbone's acceptance message, never the document: Carbone POSTs { "success": true, "data": { "renderId": "..." } } to the webhook, whose server downloads the document itself from GET /render/{renderId} (one-time, no auth). You cannot fetch it from here. Batch generation (batchSplitBy) is always delivered this way.
tags
list_tags
List all tags currently used across templates in your Carbone account. Tags are free-form labels attached to templates (e.g. "sales", "billing", "v2"). To find the templates with a tag, call list_templates and keep the results whose `tags` include it.
templates
list_templates
List stored Carbone templates with filtering, search, and pagination. Filter by Template ID, Version ID, category, or upload origin. Use includeVersions to see the full version history of each template. Supports cursor-based pagination for large collections. Each result carries its `tags`: to find templates by tag, keep the results whose `tags` include it (list_tags lists the tags in use). Note: templates uploaded with versioning disabled appear with id = null and are identified only by their versionId — pass that versionId where a Template ID is expected (e.g. delete_template, download_template).
upload
upload_template
Upload and store a reusable Carbone template. Once uploaded, use render_document with the returned Template ID to generate documents from it. Supports versioning: multiple versions can live under a single stable Template ID, and rendering by Template ID uses the version with the most recent deployedAt. A result deployedAt of 0 means the version is not explicitly deployed: if another version of the same Template ID is deployed, renders by Template ID keep using that one. Accepted formats: DOCX, XLSX, PPTX, ODT, ODS, ODP, ODG, HTML, XHTML, XML, SVG, IDML, Markdown, TXT, CSV, RTF and PDF (not the legacy binary DOC, XLS or PPT).

Endpoints

URLTransportStateLatencyChecked
https://mcp.carbone.io streamable-http sign-in 2371 ms 11 min ago

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Carbone MCP — questions

Answers built from our own checks of this server.

What can Carbone MCP do?
It exposes 12 tools, read directly from the server on our last check. Among them: convert_document, delete_template, download_template, get_api_status, get_capabilities, inspect_template and 6 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Carbone MCP working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 371 ms. The bar chart above shows every period we have measured.
How do I connect Carbone MCP?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Carbone MCP?
No API key is involved. Carbone MCP answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Carbone MCP?
It answers our handshake in 371 ms on average, which is faster than 36% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Carbone MCP?
The npm package carbone-mcp was installed 458 times in the last week. Week over week that is -11%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Carbone MCP open source?
The code is open source: it is published under the Apache-2.0 licence, written in TypeScript, 6 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at mcp.carbone.io, which runs on its operator's own terms.