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Nextcloud API and MCP server

Nextcloud's API covers files, shares, calendars, contacts and Deck, but it takes an app password and code you write and host for every instance. Sign in to Nextcloud once in your own Cloud Browser, and your AI agent does the work there for you. The same tools work over MCP for agents and as a REST API for scripts.

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Not affiliated with Nextcloud.

Nextcloud has no API for this. So we run one for you.

Nextcloud's own API, a GitHub MCP server and Cotlet compared
What you need Nextcloud's APIGitHub MCP serverCotlet
Use without an API key or code No Partly Yes, 15 tools
Acts as you, signed in 24/7 No No Yes, Cloud Browser
Fixed for you when Nextcloud changes N/A No Yes, tested every 6h
Runs with your laptop off N/A No Yes, hosted

Checked Oct 16, 2026. Sources: Nextcloud Admin Manual: Context Agent · Nextcloud Developer Manual: WebDAV basic APIs · Nextcloud Developer Manual: Share API · Nextcloud Deck: REST API

Your own Cloud Browser, on 24/7. Sign in once. We keep it connected.

  1. 01Sign in to Nextcloud in your own Cloud Browser

  2. 02Connect it for your agents

  3. 03Cotlet keeps it signed in and working

How do I connect Nextcloud to Claude, ChatGPT or my code?

AI agents connect over MCP, scripts call the REST API. Both reach the same 15 tools with one API key.

For AI agents: MCP

Add Cotlet to your agent once. Nextcloud and every other app you connect show up as its tools.

  • Claude
  • ChatGPT
  • OpenClaw
  • Hermes
  • GrokBot
  • Cursor
  • n8n
  • Any MCP client
  1. 1

    Add Cotlet to your agent

    Claude Code
    claude mcp add --transport http cotlet \
  https://cotlet.dev/mcp/v1 \
  --header "Authorization: Bearer $COTLET_API_KEY"
    Cursor
    {
  "mcpServers": {
    "cotlet": {
      "url": "https://cotlet.dev/mcp/v1",
      "headers": {
        "Authorization": "Bearer ${COTLET_API_KEY}"
      }
    }
  }
}
    Codex
    # ~/.codex/config.toml
[mcp_servers.cotlet]
url = "https://cotlet.dev/mcp/v1"
bearer_token_env_var = "COTLET_API_KEY"

    Paste the snippet for your client. The same server and key serve every app you connect, so you do this once.

For scripts: REST API

Every tool is an endpoint under /api/v1/nextcloud with its own method and path, such as POST /api/v1/nextcloud/file/share, with the same API key. Our open-source repo has ready scripts to start from.

REST API docs

What can the Nextcloud API and MCP server do?

15 tools on your own Nextcloud account. Agents call them as operations of the MCP tools nextcloud_read and nextcloud_write; scripts call each one at its own REST endpoint, with the same inputs and answers.

API reference
Nextcloud tools in Cotlet's MCP server and REST API
Tool What it does Access
list_files Files and folders inside one folder, with size, type and last change. read
search_files Search your files by name, type, size or last change inside one folder. read
list_shares Shares you created, with type, permissions, password and expiry flags. read
list_calendars Your calendars with name, color and whether they are writable. read
list_events Events of one calendar between two dates, oldest first. read
search_contacts Contacts by name, email or company, with phone numbers and addresses. read
list_deck_boards Your Deck boards with their stacks (columns). read
list_deck_cards Cards in a board or one stack, with description, due date and status. read
upload_file Write a file to your Nextcloud at a path. It does not replace an existing file unless you say so. writeasks first
create_folder Create a folder, with missing parent folders. write
share_file Share a file or folder by public link, or with a user, group or email address. writeasks first
remove_share Remove a share, so a public link or access stops working. writeasks first
create_calendar_event Add an event to a calendar, with time, location and description. writeasks first
add_contact Add a contact to an address book with name, company, emails and phones. writeasks first
create_deck_card Add a card to a Deck stack with a title, a markdown description and a due date. writeasks first

Scroll the table for all 15 tools.

Ask in plain words. Your agent does the rest.

All Nextcloud use cases

Is it safe to connect Nextcloud?

You sign in yourself in your own Cloud Browser, we never save your password, and anything that reaches your readers waits for your OK. The browser profile is encrypted in the EU. Independent scanners grade cotlet.dev A+.

Security overview

How much do the Nextcloud API and MCP server cost?

One price for both: a tool call costs the same over MCP or REST. Free 7-day trial with 2,000 credits, no card needed. Then one-time credit packs, no subscription, valid 12 months. Most calls use 25 credits, and your Cloud Browser uses 50 credits a day while Nextcloud is enabled for agents, so 20 calls a day come to 550 credits.

See full pricing
Cotlet credit packs: price, credits and calls at 25 credits each
Credits Price, one time Calls at 25 credits Per 1,000 credits
5,000 $29 200 $5.80
15,000 $79 600 $5.27
32,000 $149 1,280 $4.66
60,000 $249 2,400 $4.15

Only successful calls use credits; failed calls and timeouts cost nothing. At a balance of 0 calls pause, never a surprise charge. Authenticate with the Authorization: Bearer header.

Questions

Does Nextcloud have an API?

Yes. Every Nextcloud instance has WebDAV for files, CalDAV for calendars, CardDAV for contacts, an OCS Share API and a Deck API, and they accept an app password (checked 16 Oct 2026). Nextcloud has no standalone MCP server: the official one exists only inside the Context Agent app, which an admin sets up with Nextcloud Assistant, AppAPI and a Deploy Daemon.

How do I get access?

Sign up free, open Nextcloud under Integrations in the console and press Request access. Your free trial starts with your account, no card needed.

Is the MCP server different from the API?

No, only the way in. Cotlet builds each integration as a REST API and puts an MCP server on top, so both have the same 15 tools, the same inputs and answers, one API key and one price. AI agents such as Claude, ChatGPT or Cursor use MCP; scripts, cron jobs and HTTP steps in n8n, Make or Zapier use the REST API.

What is the Cloud Browser?

Your own Chrome that Cotlet runs for you in the EU, around the clock. You open it from the console, sign in to Nextcloud yourself and press Enable for agents. Your agent's calls go through it, from its IP with its cookies, so Nextcloud sees the browser you signed in with. Password saving is off and the profile is stored encrypted with AES-256-GCM.

Can my agent act without asking me?

Not on anything that reaches other people: upload_file, share_file, remove_share, create_calendar_event, add_contact, create_deck_card wait for your OK by default. You can switch that off per tool for scheduled runs.

Does my Nextcloud need to be reachable from the internet?

Yes. Cotlet calls your instance from the internet with an app password, so it works with managed Nextcloud and servers with a public address. An instance only on a home network or behind a VPN is not reachable from Cotlet.

Do I have to switch off two-factor authentication?

No. With two-factor authentication on, Nextcloud accepts only device-specific app passwords from clients, and Cotlet uses one. You create it in your avatar menu under Personal settings, Security, and you can revoke it there without changing your main password.

Should I use a Nextcloud MCP server from GitHub instead?

Pick one if you want the code on your own computer and do not mind the upkeep: you install it, sign it in and fix it when Nextcloud changes. Pick Cotlet if you want it hosted and kept working for you.

Can I use it in n8n, Make or Zapier?

Yes. Add https://cotlet.dev/mcp/v1 in n8n's MCP Client node, or call the REST endpoints from an HTTP step in Make or Zapier.

Who runs Cotlet?

Cotlet is run by Take Group, a Polish software company working since 2019. Take Group runs about 3,200 websites on its own systems and has its own DevOps team for infrastructure security. We built and used integrations like this inside the company for years before opening them as Cotlet.

Is Cotlet affiliated with Nextcloud?

No. Cotlet is independent and not affiliated with Nextcloud.

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