mcp-data-gouv-fr

data_gouv_fr_search_dataservices

Search the data.gouv.fr catalog of reusable French public APIs by topic. Discover dataservices for transport, address, georisques, and more.

Instructions

Search the data.gouv.fr public API / dataservice catalog. Useful to discover reusable French public APIs by topic.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "query": "<query>"
    },
    "name": "data_gouv_fr_search_dataservices"
  }
}

Input Schema

Name	Required	Description	Default
`query`	Yes	Dataservice search query, e.g. "transport", "adresse", "géorisques".
`page_size`	No	Number of dataservices to return.

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Aug 20, 2026

TDQS

A3.8/5.0

Behavior2/5

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

With no annotations provided, the description carries the full burden for behavioral disclosure. It states 'Search' which implies a read-only operation, but it does not mention return format, pagination behavior, rate limits, or any other operational traits. The description is minimal and leaves important behavioral aspects undisclosed.

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 extremely concise, consisting of two sentences that immediately convey the tool's purpose and usefulness. There is no fluff, and the information is front-loaded and easy to scan.

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 simple search tool with only two parameters and no output schema, the description adequately conveys the core purpose and typical use case. It does not mention limitations or edge cases, but given the tool's simplicity, the current level of detail is sufficient.

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% for both parameters, so the schema already documents query and page_size with examples and ranges. The description adds no additional semantic value beyond what the schema provides, making the baseline 3 appropriate.

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

Purpose5/5

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

The description clearly states the verb (search) and resource (data.gouv.fr public API / dataservice catalog), and adds context that it is useful for discovering reusable French public APIs by topic. This distinguishes it from sibling tools like search_data_gouv (datasets) and search_organizations.

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

Usage Guidelines4/5

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

The description provides a clear usage context (discovering APIs by topic) but does not explicitly mention alternative tools or when not to use it. The purpose it implies by mentioning 'dataservice catalog' differentiates it from siblings, but no direct comparison is made.

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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