marktplaats-mcp

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Search listings

search_listings

Read-onlyIdempotent

Find relevant second-hand listings on Marktplaats or 2dehands by applying filters for category, price, condition, delivery, and distance from a postal code.

Instructions

Search second-hand listings on Marktplaats or 2dehands with filters for category, category-specific attributes, price range, condition, delivery, recency and distance from a postal code. Paid promotions are filtered out unless include_sponsored is set.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`site`	No	Which marketplace: marktplaats (Netherlands) or 2dehands (Belgium).	marktplaats
`limit`	No	Results per page (1-100).
`query`	No	Free-text search, e.g. 'racefiets' or 'iphone 15'. May be empty if a category is given.
`offset`	No	Pagination: pass 'next_offset' from the previous result.
`compact`	No	True (default) returns a token-efficient shortlist; False adds description, seller, images and attributes per listing.
`exclude`	No	Drop listings whose title or description contains any of these words, e.g. ['hoesje', 'defect', 'gezocht'].
`sort_by`	No	'relevance' (default), 'date' (newest first with desc), 'price' or 'location'.	relevance
`category`	No	Top-level category name (Dutch, e.g. 'Fietsen en Brommers') or numeric id. See list_categories.
`delivery`	No	'shipping' for ads that can be shipped, 'pickup' for collection.
`language`	No	2dehands only: 'nl' for Dutch-language ads, 'fr' for French, 'all' (default).
`postcode`	No	Dutch/Belgian postal code to search around, e.g. '1011 AB' or '2000'. Required for distance filtering and for distance_km in results.
`price_to`	No	Maximum price in euros.
`condition`	No	Filter by item condition.
`attributes`	No	Category-specific filters as {filter: value}, using the labels from list_category_filters, e.g. {'Merk': 'Gazelle', 'Framehoogte': '57 tot 61 cm'} or {'Bouwjaar': '2018-2022', 'Kilometerstand': '-100000', 'Brandstof': 'Benzine'}. A list means any of those values. Ranges are 'min-max', 'min-' or '-max'.
`price_from`	No	Minimum price in euros.
`sort_order`	No	'asc' or 'desc'.	desc
`distance_km`	No	Max distance from postcode in kilometers (needs postcode).
`subcategory`	No	Subcategory name (e.g. 'Fietsen \| Racefietsen' or 'Fietsen \| Heren \| Herenfietsen') or numeric id. See list_categories with a parent.
`include_unpriced`	No	Keep ads without an asking price (free, 'Bieden' without amount) when sorting by price or filtering on price. Default False: those ads would otherwise sort as €0 and flood the cheapest pages.
`include_sponsored`	No	Include paid promotions (DAGTOPPER/TOPADVERTENTIE) and the sponsored top block.
`offered_since_days`	No	Only listings placed within the last N days.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`note`	No
`site`	Yes
`limit`	Yes
`offset`	Yes
`listings`	Yes
`returned`	Yes
`next_offset`	No
`total_count`	Yes
`suggested_query`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed13 schema fields changedv0.2.0Sep 26, 2026

addedInput schema / properties / attributes

Added value: +{
+  "anyOf": [
+    {
+      "additionalProperties": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          }
+        ]
+      },
+      "type": "object"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "description": "Category-specific filters as {filter: value}, using the labels from list_category_filters, e.g. {'Merk': 'Gazelle', 'Framehoogte': '57 tot 61 cm'} or {'Bouwjaar': '2018-2022', 'Kilometerstand': '-100000', 'Brandstof': 'Benzine'}. A list means any of those values. Ranges are 'min-max', 'min-' or '-max'."
+}

addedInput schema / properties / delivery

Added value: +{
+  "anyOf": [
+    {
+      "enum": [
+        "pickup",
+        "shipping"
+      ],
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "description": "'shipping' for ads that can be shipped, 'pickup' for collection."
+}

changedInput schema / properties / distance_km / description

Previous value: -"Max distance from postcode in kilometers."New value: +"Max distance from postcode in kilometers (needs postcode)."

addedInput schema / properties / exclude

Added value: +{
+  "anyOf": [
+    {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "description": "Drop listings whose title or description contains any of these words, e.g. ['hoesje', 'defect', 'gezocht']."
+}

addedInput schema / properties / include_unpriced

Added value: +{
+  "default": false,
+  "description": "Keep ads without an asking price (free, 'Bieden' without amount) when sorting by price or filtering on price. Default False: those ads would otherwise sort as €0 and flood the cheapest pages.",
+  "type": "boolean"
+}

addedInput schema / properties / language

Added value: +{
+  "anyOf": [
+    {
+      "enum": [
+        "nl",
+        "fr",
+        "all"
+      ],
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "description": "2dehands only: 'nl' for Dutch-language ads, 'fr' for French, 'all' (default)."
+}

changedInput schema / properties / offset / description

Previous value: -"Pagination offset: page_number * limit."New value: +"Pagination: pass 'next_offset' from the previous result."

changedInput schema / properties / postcode / description

Previous value: -"Dutch/Belgian postal code to search around, e.g. '1011 AB' or '2000'. Required for distance filtering."New value: +"Dutch/Belgian postal code to search around, e.g. '1011 AB' or '2000'. Required for distance filtering and for distance_km in results."

changedInput schema / properties / subcategory / description

Previous value: -"Subcategory name (e.g. 'Fietsen | Racefietsen') or numeric id."New value: +"Subcategory name (e.g. 'Fietsen | Racefietsen' or 'Fietsen | Heren | Herenfietsen') or numeric id. See list_categories with a parent."

removedOutput schema / additionalProperties
```
Removed value: -true
```

addedOutput schema / properties

Added value: +{
+  "limit": {
+    "title": "Limit",
+    "type": "integer"
+  },
+  "listings": {
+    "items": {
+      "properties": {
+        "attributes": {
+          "anyOf": [
+            {
+              "additionalProperties": {
+                "type": "string"
+              },
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Attributes"
+        },
+        "category_id": {
+          "anyOf": [
+            {
+              "type": "integer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Category Id"
+        },
+        "city": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "City"
+        },
+        "description": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Description"
+        },
+        "distance_km": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Distance Km"
+        },
+        "id": {
+          "title": "Id",
+          "type": "string"
+        },
+        "image_urls": {
+          "anyOf": [
+            {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Image Urls"
+        },
+        "is_business": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Is Business"
+        },
+        "is_sponsored": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Is Sponsored"
+        },
+        "listed": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Listed"
+        },
+        "price": {
+          "title": "Price",
+          "type": "string"
+        },
+        "price_euros": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Price Euros"
+        },
+        "reserved": {
+          "anyOf": [
+            {
+              "type": "boolean"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Reserved"
+        },
+        "seller": {
+          "anyOf": [
+            {
+              "properties": {
+                "id": {
+                  "anyOf": [
+                    {
+                      "type": "integer"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "title": "Id"
+                },
+                "is_verified": {
+                  "anyOf": [
+                    {
+                      "type": "boolean"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "title": "Is Verified"
+                },
+                "name": {
+                  "anyOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "null"
+                    }
+                  ],
+                  "default": null,
+                  "title": "Name"
+                }
+              },
+              "title": "Seller",
+              "type": "object"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null
+        },
+        "title": {
+          "title": "Title",
+          "type": "string"
+        },
+        "url": {
+          "title": "Url",
+          "type": "string"
+        }
+      },
+      "required": [
+        "id",
+        "title",
+        "price",
+        "url"
+      ],
+      "title": "Listing",
+      "type": "object"
+    },
+    "title": "Listings",
+    "type": "array"
+  },
+  "next_offset": {
+    "anyOf": [
+      {
+        "type": "integer"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "default": null,
+    "title": "Next Offset"
+  },
+  "note": {
+    "anyOf": [
+      {
+        "type": "string"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "default": null,
+    "title": "Note"
+  },
+  "offset": {
+    "title": "Offset",
+    "type": "integer"
+  },
+  "returned": {
+    "title": "Returned",
+    "type": "integer"
+  },
+  "site": {
+    "title": "Site",
+    "type": "string"
+  },
+  "suggested_query": {
+    "anyOf": [
+      {
+        "type": "string"
+      },
+      {
+        "type": "null"
+      }
+    ],
+    "default": null,
+    "title": "Suggested Query"
+  },
+  "total_count": {
+    "title": "Total Count",
+    "type": "integer"
+  }
+}

addedOutput schema / required

Added value: +[
+  "site",
+  "total_count",
+  "offset",
+  "limit",
+  "returned",
+  "listings"
+]

addedOutput schema / title
```
Added value: +"SearchResult"
```

First observedv0.1.1Jul 15, 2026

TDQS

A3.8/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already establish readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds a non-obvious behavioral default: 'Paid promotions are filtered out unless include_sponsored is set.' This goes beyond structured fields and clarifies an important hidden behavior without contradicting the annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is exactly two sentences with no filler. The main purpose is front-loaded, followed by a compact list of filter dimensions and a key behavioral default. Every sentence earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with 21 parameters, a rich output schema, and detailed per-parameter descriptions, the description provides adequate orientation: what it searches, which platforms, and a notable default. It could explicitly mention pagination or sorting, but those are already documented in the schema, so nothing essential is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3 and the schema already explains every parameter thoroughly. The description's enumeration of filter types adds no syntax or format details beyond what each parameter description provides. It does not need to compensate for any gap.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states a specific verb ('Search') and a specific resource ('second-hand listings on Marktplaats or 2dehands'), and enumerates the available filter dimensions. It is not a tautology and gives a concrete sense of the tool's role. However, it does not explicitly distinguish itself from sibling tools like list_seller_listings or check_new_listings, so it falls short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies the tool is for finding listings by criteria, and the schema's parameter descriptions point to companion tools (list_categories, list_category_filters), providing indirect workflow guidance. There is no explicit 'use this when...' or 'use X instead when...' statement, so an agent must infer when to choose this over siblings.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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