Nantes Métropole Open Data Catalog: Datasets by Keyword, Licence and Update Date

nantesmetropoleopendata/dataset-catalog

Metadata of the datasets on the Nantes Métropole open data portal: dataset id, title, description, licence and licence link, publisher, last modification, record count and the dataset's columns. Search with an ODSQL where expression such as search("velo"), sort with order_by modified desc, and page with limit and offset. Metadata only; the licence of each dataset is in its own record. Data of Nantes Métropole, served by Eden Engine; not an official Nantes Métropole product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

Nantes Métropole Open Data

Source: Nantes Métropole open data portal (data.nantesmetropole.fr); each dataset declares its own licence in `metas.default.license`, mostly Licence Ouverte. Served by Eden Engine; not an official Nantes Métropole product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "nantesmetropoleopendata/dataset-catalog" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "nantesmetropoleopendata/dataset-catalog" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "nantesmetropoleopendata/dataset-catalog", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "nantesmetropoleopendata/dataset-catalog", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 21, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "limit"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 10,
      "minimum": 1,
      "description": "Datasets to return, 1 to 10."
    },
    "where": {
      "type": "string",
      "maxLength": 300,
      "minLength": 1,
      "description": "ODSQL filter on dataset metadata, for example search(\"velo\") for a text search or modified > date'2025-01-01'. Leave out for all datasets."
    },
    "offset": {
      "type": "integer",
      "minimum": 0,
      "description": "Datasets to skip, for reading further pages."
    },
    "order_by": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Sort, for example `modified desc` or `records_count desc`. Leave out for the portal's order."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "total_count",
    "results"
  ],
  "properties": {
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "dataset_id",
          "metas"
        ],
        "properties": {
          "metas": {
            "type": "object",
            "properties": {
              "default": {
                "type": "object",
                "properties": {
                  "title": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Dataset title."
                  },
                  "license": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Licence name the publisher declared."
                  },
                  "modified": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Last modification time, ISO 8601."
                  },
                  "publisher": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Publisher."
                  },
                  "description": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Description, as HTML."
                  },
                  "license_url": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Licence link, when given."
                  },
                  "records_count": {
                    "type": "integer",
                    "description": "Number of rows."
                  }
                },
                "description": "Default metadata template.",
                "additionalProperties": true
              }
            },
            "description": "Metadata by template; `default` is always present.",
            "additionalProperties": true
          },
          "fields": {
            "type": "array",
            "items": {
              "type": "object",
              "additionalProperties": true
            },
            "description": "Column definitions of the dataset: name, label and type."
          },
          "dataset_id": {
            "type": "string",
            "description": "Dataset identifier; pass it as `dataset_id` to the dataset-records tool."
          },
          "dataset_uid": {
            "type": "string",
            "description": "Internal dataset uid."
          },
          "has_records": {
            "type": "boolean",
            "description": "Whether the dataset has rows."
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per dataset on the page; empty when nothing matches."
    },
    "total_count": {
      "type": "integer",
      "description": "Number of datasets matching the filter."
    }
  },
  "description": "The portal's catalog envelope: the number of matching datasets and the requested page of dataset records.",
  "additionalProperties": true
}