Marktplaats & 2dehands

Name: Marktplaats & 2dehands
Author: jasp-nerd

by jasp-nerdversion 0.2.0i★ –iComputer or cloud

Registry nameio.github.jasp-nerd/marktplaats-mcp

Install

Overview

Description from the maker (original English)

Search Marktplaats & 2dehands (NL/BE classifieds), vet sellers, compare prices, use your account.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Search & AI memory
You need to fill in: MARKTPLAATS_COOKIE, TWEEDEHANDS_COOKIE

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: MARKTPLAATS_COOKIE, TWEEDEHANDS_COOKIE, MARKTPLAATS_READ_ONLY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://marktplaats-mcp.jaspnerd.dev/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "marktplaats": {
      "command": "uvx",
      "args": [
        "marktplaats-mcp"
      ],
      "env": {
        "MARKTPLAATS_COOKIE": "your-value",
        "TWEEDEHANDS_COOKIE": "your-value",
        "MARKTPLAATS_READ_ONLY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http marktplaats https://marktplaats-mcp.jaspnerd.dev/mcp

Or run it on your computer

claude mcp add marktplaats --env MARKTPLAATS_COOKIE=your-value --env TWEEDEHANDS_COOKIE=your-value --env MARKTPLAATS_READ_ONLY=your-value -- uvx marktplaats-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "marktplaats": {
      "url": "https://marktplaats-mcp.jaspnerd.dev/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "marktplaats": {
      "command": "uvx",
      "args": [
        "marktplaats-mcp"
      ],
      "env": {
        "MARKTPLAATS_COOKIE": "your-value",
        "TWEEDEHANDS_COOKIE": "your-value",
        "MARKTPLAATS_READ_ONLY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "marktplaats": {
      "type": "http",
      "url": "https://marktplaats-mcp.jaspnerd.dev/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "marktplaats": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "marktplaats-mcp"
      ],
      "env": {
        "MARKTPLAATS_COOKIE": "your-value",
        "TWEEDEHANDS_COOKIE": "your-value",
        "MARKTPLAATS_READ_ONLY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://marktplaats-mcp.jaspnerd.dev/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

MARKTPLAATS_COOKIE secret env
Optional. Your marktplaats.nl session Cookie header for the account tools; prefer running 'marktplaats-mcp login' instead.
TWEEDEHANDS_COOKIE secret env
Optional. Your 2dehands.be session Cookie header for the account tools.
MARKTPLAATS_READ_ONLY env
Set to 1 to disable sending messages, bidding and changing favorites.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account jasp-nerd, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

More stars than 0% of the other 5668 servers in this category
Published to the registry more recently than 45% of the other 5668 servers in this category
Basic checks equal to or better than 100% of the other 5668 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Marktplaats & 2dehands safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: MARKTPLAATS_COOKIE, TWEEDEHANDS_COOKIE

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.2.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

English | Nederlands | Français

marktplaats-mcp: the Marktplaats & 2dehands MCP server

marktplaats-mcp is an MCP server for Marktplaats.nl (Netherlands) and 2dehands.be (Belgium), the Dutch and Belgian second-hand classifieds (*tweedehands*, *petites annonces d'occasion*). Search listings, filter on category attributes, vet sellers, compare prices and watch for new ads from Claude, ChatGPT, Cursor, Codex, Gemini or any other MCP client. With your own login it also reads and sends messages, places bids and manages your favorites and ads. No API key.

🚀 Get started

No install: paste a URL. The hosted, read-only server runs at https://marktplaats-mcp.jaspnerd.dev/mcp. Add it as a custom connector in claude.ai (Settings → Connectors, works on the Free plan and mobile), ChatGPT, Mistral Le Chat, Perplexity or the Gemini app.

Claude Code: one command.

claude mcp add --scope user marktplaats -- uvx marktplaats-mcp

Any other client. Install uv (brew install uv, or winget install --id=astral-sh.uv -e on Windows), then add the standard MCP config:

{ "mcpServers": { "marktplaats": { "command": "uvx", "args": ["marktplaats-mcp"] } } }

One click:

Step-by-step instructions for 40 clients (Cursor, VS Code, Codex, Gemini CLI, Cline, Windsurf, JetBrains, Zed, opencode, Goose, ...), with the config path per OS and a link to each client's official guide: [docs/clients.md](https://github.com/jasp-nerd/marktplaats-mcp/blob/main/docs/clients.md).

Then ask: *"Find a racefiets under €500 within 25 km of 1011 AB, frame 57-61 cm, and tell me if the sellers look legit."*

👤 Use your own account (messages, favorites, bids, your ads)

Marktplaats has no public API and its login uses SMS two-factor authentication, so this server never asks for your password. It copies the session from a browser you are already logged into:

uvx --from 'marktplaats-mcp[login]' marktplaats-mcp login

The session is stored in ~/.config/marktplaats-mcp/session.json, readable by your user only. Restart your MCP client and the account tools appear.

marktplaats-mcp login --site 2dehands  # also import your 2dehands.be session

marktplaats-mcp login --read-only # never send, bid or change favorites marktplaats-mcp login --window # open a browser window and log in there instead marktplaats-mcp login --paste # paste a Cookie header from DevTools instead marktplaats-mcp status # is the stored session still valid? marktplaats-mcp logout # delete it

If login says it could not read your browser's cookies

macOS: the system blocks command-line tools from reading browser data and does not ask. Once, open System Settings → Privacy & Security → Full Disk Access, add the terminal app you use (Terminal, iTerm, Warp, or VS Code), then quit and reopen it. Then run the login command again.
Windows: Chrome and Edge lock their cookie file while they run; the tool copies it first, so this normally just works. If it doesn't, close the browser and run the login again, or use --paste.
Linux: Chromium browsers store the cookie key in your keyring (GNOME Keyring or KWallet), which must be unlocked; Firefox needs nothing. Snap or Flatpak browsers keep their profile elsewhere, so use --paste there.
Everywhere: marktplaats-mcp login --paste never needs permissions. In your browser on marktplaats.nl press F12 → Network, click any request, copy the Cookie request header and paste it.

Or set MARKTPLAATS_COOKIE / TWEEDEHANDS_COOKIE (the request Cookie header) in your client's config. Sessions last weeks; when one expires the tools tell you to log in again.

Sending, contacting a seller and bidding return a preview first and only act when called again with confirm=true. Bids are binding on Marktplaats; the tool refuses bids below the minimum. Automated ad placement is forbidden by Marktplaats' terms and deliberately not implemented. See Safety model.

🧰 Tools

Tool	What it does	Account	Writes
`search_listings`	Search with query, category, subcategory, category-specific attributes, price range, condition, delivery (pickup/shipping), distance from a postcode, recency, negative keywords, sorting and pagination
`get_listing_details`	Full ad: description, attributes, status (active/closed), exact listing time, view and favorite counts, bidding state and minimum bid, shipping, images, seller response rate and account age. Accepts pasted URLs
`get_seller_profile`	Trust signals: verified bank account, identity, phone, business verification, payment method, review score and count, lowest bid the seller accepts
`list_seller_listings`	Everything one seller has on offer: spot dealers posing as private sellers and duplicate ads
`list_categories`	The category tree (names and ids) used for filtering, also available as an MCP resource
`list_category_filters`	Discover the filters for a category (brand, frame height, mileage, fuel, RAM, ...) with their valid values and counts
`check_new_listings`	Newest-first monitoring with a stateless cursor: returns only ads placed after `since`, never skips one
`analyze_prices`	Median, quartiles, min, max and mean asking prices for a search, plus the cheapest matches
`get_my_account`	Session check, unread messages and notifications	✅
`list_conversations`, `get_conversation`	Your inbox and full message threads	✅
`list_my_listings`, `list_favorites`, `list_my_bids`, `list_saved_searches`	Your ads (views, favorites, highest bid, expiry), favorites, bids and saved searches	✅
`send_message`, `contact_seller`	Reply in a thread, or ask a seller a question or make a non-binding offer. Preview first, `confirm=true` to send	✅	✅
`place_bid`	Bid on a listing. Preview first, refuses bids below the minimum, marked destructive	✅	✅
`set_favorite`, `extend_my_listing`	Save/unsave a listing; renew one of your expiring ads	✅	✅

Read-only tools carry the matching MCP annotations, so clients skip confirmation prompts for them and ask for the write tools. Every tool returns structured output with a real schema. Two prompts, bargain_hunt and vet_listing, encode the common workflows.

What you can say, and what happens

You say	The agent calls
"Is €450 a fair price for an iPhone 15 128 GB in good condition?"	`analyze_prices` → median, quartiles and the three cheapest ads
"Find a used Golf, 2018-2022, under 100,000 km, petrol, from a private seller"	`list_category_filters("Auto's")` → `search_listings(attributes={"Bouwjaar": "2018-2022", "Kilometerstand": "-100000", "Brandstof": "Benzine", "Adverteerder": "Particulier"})`
"Is this seller trustworthy? What else are they selling?"	`get_listing_details` → `get_seller_profile` → `list_seller_listings`
"Tell me when new bakfiets ads appear near Antwerp"	`check_new_listings(site="2dehands", postcode="2000", distance_km=25)` with the returned cursor on every poll
"Ask the seller whether it's still available and offer €120"	`contact_seller(..., offer_euros=120)` preview → you confirm → sent
"Reply to Piet that I can pick it up Saturday"	`list_conversations` → `send_message` preview → you confirm → sent

🔒 Safety model

No credentials by default. Searching, details, seller checks, filters, price statistics and monitoring need no account.
Your session stays yours. The local server reads the cookie from your browser or a file only you can read, sends it only to marktplaats.nl / 2dehands.be, and never logs it. The hosted endpoint refuses to start with account credentials configured.
Writes are explicit. Sending and bidding preview first and require confirm=true; bids below the minimum are refused; login --read-only or MARKTPLAATS_READ_ONLY=1 disables writes entirely; every confirmed write is logged locally.
Untrusted content is labelled. Listing text and messages are written by other users; the server tells the model to treat them as data, never as instructions.
Polite to the marketplace. Requests are spaced (MARKTPLAATS_MIN_INTERVAL_MS, default 200), retried with backoff and Retry-After, and search pages are cached for a minute. The hosted endpoint is rate-limited per client and globally.
No affiliate links, no tracking. Listing URLs are returned exactly as the marketplaces publish them.

❓ FAQ

Is there an MCP server for Marktplaats?

Yes, this one. Free, open source (MIT), no API key. Paste the host

Only the beginning is shown; read the rest in the repo

Marktplaats & 2dehands

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

marktplaats-mcp: the Marktplaats & 2dehands MCP server

🚀 Get started

👤 Use your own account (messages, favorites, bids, your ads)

🧰 Tools

What you can say, and what happens

🔒 Safety model

❓ FAQ

Is there an MCP server for Marktplaats?